Tools

Security

JWT Decoder

Bongkar header dan payload JWT, cek kedaluwarsa.

6 times used
Security

Hash Generator

MD5, SHA-1, SHA-256, SHA-384, SHA-512 dari teks.

12 times used
Programming

JSON Formatter

Rapikan, padatkan, dan validasi JSON.

9 times used
Programming

Base64

Encode dan decode teks Base64 (UTF-8).

12 times used
Programming

Regex Tester

Uji pola regex dan lihat semua kecocokannya.

7 times used
Security

UUID & Password Generator

UUID v4, password kuat, dan token acak aman.

9 times used
Security

Hex & Binary

Teks ke hex/biner dan sebaliknya.

6 times used
Security

ROT13 & Caesar

ROT13, ROT47, dan semua geseran Caesar untuk CTF.

7 times used
Programming

Timestamp Converter

Unix timestamp ke tanggal dan sebaliknya.

5 times used
Programming

URL Encoder

Encode dan decode komponen URL.

5 times used
Programming

HTML Entity

Escape dan unescape karakter HTML.

8 times used
Programming

JSON ⇄ CSV

Ubah array JSON jadi CSV dan sebaliknya.

9 times used
Text

Case Transformer

camelCase, snake_case, kebab-case, PascalCase.

10 times used
Text

Duplicate Eliminator

Hapus baris duplikat dan urutkan A-Z.

11 times used
Text

Space To Newline

Ubah spasi jadi baris baru atau sebaliknya.

6 times used
Security

Cek Kebocoran Password new

Cek apakah password pernah bocor via HaveIBeenPwned (privat).

7 times used
Security

Password Strength Meter new

Skor kekuatan password + estimasi waktu brute-force.

8 times used
Security

HMAC Generator new

HMAC-SHA256/SHA512 dari kunci dan pesan.

8 times used
Security

AES-GCM Encrypt new

Enkripsi/dekripsi AES-256-GCM berbasis password.

9 times used
Security

Hash Identifier new

Tebak jenis hash dari bentuknya (MD5, SHA, bcrypt).

9 times used
Network

Subnet Calculator new

Hitung network, broadcast, dan range host dari CIDR.

4 times used
Programming

Chmod Calculator new

Konversi oktal 755 ke simbolis rwxr-xr-x dan sebaliknya.

6 times used
Programming

Cron Explainer new

Terjemahkan ekspresi cron ke bahasa Indonesia.

5 times used
Programming

Color Converter new

Konversi warna HEX, RGB, dan HSL.

6 times used
Text

Text Diff Checker new

Bandingkan dua teks baris per baris.

9 times used
Text

Morse Code new

Encode dan decode kode morse.

4 times used
Text

Statistik Teks new

Hitung kata, karakter, kalimat, dan waktu baca.

7 times used
Text

Lorem Ipsum Generator new

Buat teks dummy lorem ipsum.

7 times used
Security

Base32 Encode/Decode new

Encode dan decode Base32 (RFC 4648).

8 times used
Security

Base58 Encode/Decode new

Encode dan decode Base58 ala Bitcoin.

11 times used
Security

TOTP Generator new

Kode OTP 6 digit ala Google Authenticator.

4 times used
Security

Passphrase Generator new

Passphrase acak dari kata bahasa Indonesia.

8 times used
Security

NanoID Generator new

ID acak unik ala NanoID.

6 times used
Security

ULID Generator new

ID unik terurut waktu (ULID).

8 times used
Security

SRI Hash Generator new

Hash integritas Subresource Integrity untuk CDN.

3 times used
Security

Basic Auth Generator new

Header Authorization Basic dari user:pass.

8 times used
Security

IBAN Validator new

Validasi nomor IBAN (mod-97).

11 times used
Security

Luhn Validator new

Validasi digit dengan algoritma Luhn.

5 times used
Programming

XML Formatter new

Rapikan XML berantakan.

6 times used
Programming

SQL Formatter new

Format query SQL jadi rapi.

6 times used
Programming

CSS Minifier new

Kecilkan ukuran file CSS.

8 times used
Programming

HTML Minifier new

Kecilkan ukuran file HTML.

6 times used
Programming

Markdown ke HTML new

Konversi Markdown menjadi HTML.

5 times used
Programming

HTML ke Markdown new

Konversi HTML menjadi Markdown.

5 times used
Programming

Base Converter new

Konversi basis 2/8/10/16/32/36.

7 times used
Programming

Unicode Inspector new

Lihat codepoint tiap karakter.

5 times used
Programming

Slug Generator new

Teks menjadi slug URL.

4 times used
Programming

.env ke JSON new

Konversi file .env menjadi JSON.

8 times used
Programming

Semver Compare new

Bandingkan versi semantic.

6 times used
Programming

HTTP Status Lookup new

Cari arti kode status HTTP.

10 times used
Programming

MIME Type Lookup new

Cari MIME type dari ekstensi.

5 times used
Programming

CSS Gradient Generator new

Buat CSS linear-gradient.

6 times used
Programming

Box-Shadow Generator new

Buat CSS box-shadow.

10 times used
Programming

JSON ke YAML new

Konversi JSON menjadi YAML.

7 times used
Programming

XML ke JSON new

Konversi XML menjadi JSON.

4 times used
Programming

ASCII Table new

Tabel karakter ASCII.

5 times used
Programming

String Unescaper new

Unescape string (newline, tab, ...).

5 times used
Programming

JSONPath Evaluator new

Ambil nilai JSON dengan path.

3 times used
Network

IP / Desimal Converter new

Konversi IP ke desimal dan sebaliknya.

7 times used
Network

IPv6 Expand/Compress new

Expand dan compress alamat IPv6.

11 times used
Network

MAC Formatter new

Format MAC ke colon/hyphen/Cisco.

3 times used
Network

MAC Generator new

Generate alamat MAC acak.

5 times used
Network

DNS Lookup (DoH) new

Query DNS via DNS-over-HTTPS.

6 times used
Network

Port Reference new

Referensi port umum.

6 times used
Network

User-Agent Parser new

Urai OS dan browser dari UA.

7 times used
Network

Punycode Encoder new

Encode domain IDN ke punycode.

4 times used
Text

Number Lines new

Beri nomor tiap baris.

6 times used
Text

Prefix/Suffix Adder new

Tambah awalan/akhiran tiap baris.

8 times used
Text

Find & Replace new

Cari dan ganti teks.

6 times used
Text

Strip HTML Tags new

Hapus semua tag HTML.

7 times used
Text

URL/Email Extractor new

Ekstrak URL dan email dari teks.

10 times used
Text

Mocking Case new

Teks aLtErNaTe ala meme.

3 times used
Text

Upside-Down Text new

Balik teks terbalik.

6 times used
Text

Remove Empty Lines new

Hapus baris kosong.

8 times used
Text

Trim Lines new

Trim spasi tiap baris.

6 times used
Text

Character Frequency new

Hitung frekuensi karakter.

8 times used
Text

Palindrome Checker new

Cek apakah teks palindrom.

6 times used
Text

NATO Phonetic new

Eja dengan alfabet NATO.

9 times used
Text

Emoji Remover new

Hapus emoji dari teks.

7 times used
Text

Shuffle Lines new

Acak urutan baris.

5 times used
Text

Random Line Sampler new

Ambil sampel baris acak.

4 times used
Text

Terbilang new

Angka menjadi kata bahasa Indonesia.

6 times used
Math

Kalkulator new

Kalkulator ekspresi matematika.

7 times used
Math

Konverter Satuan new

Konversi panjang/berat/suhu.

7 times used
Math

Kalkulator Persen new

Hitung persen dan persentase.

4 times used
Math

Kalkulator BMI new

Hitung indeks massa tubuh.

6 times used
Math

FPB & KPK new

Hitung FPB dan KPK.

5 times used
Math

Prime Checker new

Cek bilangan prima.

7 times used
Math

Fibonacci new

Deret Fibonacci.

5 times used
Math

Statistik new

Mean, median, standar deviasi.

7 times used
Math

Roman Numerals new

Angka ke/dari Romawi.

6 times used
Time

Date Difference new

Selisih hari antar tanggal.

5 times used
Time

Timezone Converter new

Konversi zona waktu.

8 times used
Time

Week Number new

Nomor minggu ISO dari tanggal.

5 times used
Data

CSV/TSV Converter new

Konversi CSV ke TSV dan sebaliknya.

4 times used
Data

JSON ke XML new

Konversi JSON menjadi XML.

6 times used
Data

CSV Column Extractor new

Ambil satu kolom dari CSV.

10 times used
Data

JSON Key Sorter new

Urutkan key JSON alfabetis.

5 times used
Data

vCard Generator new

Buat kartu kontak vCard.

9 times used
Data

WiFi QR String new

String QR untuk konek WiFi otomatis.

4 times used
Data

Meta Tag Generator new

Generate meta tag SEO & Open Graph.

5 times used
Data

robots.txt Generator new

Generate file robots.txt.

4 times used
Network

Reverse IP Lookup new

Cari domain yang berbagi satu IP + PTR record.

6 times used
Text

Reverse Words

Reverse word order per line

4 times used
Text

Reverse Characters

Reverse every character

4 times used
Text

Alternating Case

aLtErNaTiNg case

5 times used
Text

Random Case

Randomize letter casing

6 times used
Text

Swap Case

Swap upper and lower case

3 times used
Text

Sentence Case

Capitalize sentence starts

7 times used
Text

CONSTANT_CASE

Convert to CONSTANT_CASE

5 times used
Text

dot.case

Convert to dot.case

6 times used
Text

path/case

Convert to path/case

5 times used
Text

Header-Case

Convert to Header-Case

6 times used
Text

Leetspeak Encoder

Encode text to 1337

3 times used
Text

Unleetspeak

Decode basic leetspeak

4 times used
Text

Pig Latin

Convert words to Pig Latin

6 times used
Text

ROT47 Cipher

ROT47 encode and decode

4 times used
Text

ROT18 Cipher

ROT13 plus ROT5 for alphanumerics

4 times used
Text

Atbash Cipher

Atbash encode and decode

6 times used
Text

Vigenere Cipher

Encrypt and decrypt with a key

4 times used
Text

Rail Fence Cipher

Rail fence transposition cipher

5 times used
Text

Bacon Cipher

Baconian A and B encoding

6 times used
Text

Polybius Square

5x5 square encode and decode

6 times used
Text

A1Z26 Cipher

Letters to 1-26 numbers

8 times used
Text

Tap Code

Tap-code dot encoding

4 times used
Text

Vowel Counter

Count vowels in text

8 times used
Text

Consonant Counter

Count consonants in text

7 times used
Text

Sentence Counter

Count sentences in text

7 times used
Text

Paragraph Counter

Count paragraphs in text

8 times used
Text

Reading Time

Estimate reading time at 200 wpm

4 times used
Text

Readability Score

Flesch reading-ease score 0-100

6 times used
Text

Acronym Maker

Build acronym from words

8 times used
Text

Initials Extractor

Extract initials per line

7 times used
Text

Smart Quotes

Convert to curly quotes

8 times used
Text

Straight Quotes

Convert to straight quotes

6 times used
Text

Text Wrapper

Wrap text at N columns

8 times used
Text

Indent Lines

Add 2-space indent per line

6 times used
Text

Unindent

Remove common leading indent

7 times used
Text

Lines to Comma List

Join lines with commas

7 times used
Text

Comma to Lines

Split commas into lines

6 times used
Text

Lines to JSON Array

Convert lines to JSON array

8 times used
Text

JSON Array to Lines

Convert JSON array to lines

6 times used
Text

Lines to Markdown List

Convert lines to bullet list

6 times used
Text

Text to Markdown Table

Columns to Markdown table

3 times used
Text

Text to HTML Table

Columns to HTML table

7 times used
Text

ASCII Banner

Big ASCII-art text

5 times used
Text

Box Text

Draw a box around text

6 times used
Text

Strikethrough Text

Combining strikethrough

4 times used
Text

Underlined Text

Combining underline

6 times used
Text

Bold Unicode

Mathematical bold letters

7 times used
Text

Italic Unicode

Mathematical italic letters

10 times used
Text

Monospace Unicode

Monospace unicode letters

8 times used
Text

Small Caps

Small caps converter

10 times used
Text

Circled Text

Circled unicode letters

8 times used
Text

Squared Text

Squared unicode letters

6 times used
Text

Fullwidth Converter

Convert to fullwidth forms

8 times used
Text

Zalgo Text

Glitch text generator

5 times used
Text

Word Censor

Replace listed words with stars

10 times used
Text

Redact Emails

Mask email addresses

5 times used
Text

Redact Phones

Mask phone numbers

6 times used
Text

Phone Extractor

Extract phone-like numbers

7 times used
Text

Hashtag Extractor

Extract hashtags

10 times used
Text

Mention Extractor

Extract at-mentions

7 times used
Text

IP Extractor

Extract IPv4 addresses

8 times used
Text

Date Extractor

Extract common date formats

11 times used
Text

Filename Cleaner

Make filesystem-safe names

7 times used
Text

Normalize Whitespace

Collapse all whitespace runs

4 times used
Text

Zero-Width Stripper

Remove invisible unicode chars

5 times used
Text

Remove Diacritics

Strip accents via NFD

8 times used
Text

Word Frequency

Count word occurrences sorted

9 times used
Text

Sort Words

Sort words A to Z

7 times used
Text

Unique Words

Dedupe words keeping order

8 times used
Text

Longest Word

Find the longest word

6 times used
Text

Shortest Word

Find the shortest word

4 times used
Text

Pangram Checker

Check all 26 letters present

8 times used
Text

Anagram Checker

Check if two lines are anagrams

10 times used
Text

Sentence Palindrome

Palindrome ignoring spaces and case

6 times used
Text

Text Metrics

Chars words lines and avg word length

4 times used
Text

Paragraph Generator

Generate random paragraphs

6 times used
Text

Excuse Generator

Random funny excuses

7 times used
Text

Compliment Generator

Random compliments

8 times used
Text

Band Name Generator

Random band names

9 times used
Text

Startup Name Generator

Random startup names

8 times used
Text

Username Generator

Random usernames

4 times used
Text

Text Repeater

Repeat text N times

6 times used
Text

Interleave Lines

Alternate two blocks of lines

8 times used
Text

Merge Lines

Join every N lines

6 times used
Text

Column Cutter

Extract character columns

8 times used
Text

Braille Converter

Text to braille patterns

9 times used
Text

Vowel Masker

Replace vowels with stars

5 times used
Programming

Base64URL Codec

URL-safe base64 encode and decode

7 times used
Programming

Base85 Ascii85

Ascii85 encode and decode

7 times used
Programming

JS String Escape

Escape text for JS string literals

6 times used
Programming

JS String Unescape

Unescape JS string escape sequences

4 times used
Programming

JSON String Escape

Escape a string for embedding in JSON

6 times used
Programming

CSS Escape

Escape text as a CSS identifier

7 times used
Programming

SQL Escape

Escape single quotes for SQL strings

7 times used
Programming

Regex Escape

Escape regex metacharacters

5 times used
Programming

Shell Escape

Quote text safely for POSIX shell

4 times used
Programming

JWT Generator

Create signed HS256 or unsigned JWT

8 times used
Programming

UUID Validator

Validate UUID and detect its version

6 times used
Programming

ULID Validator

Validate ULID format

5 times used
Programming

ISBN Validator

Validate ISBN-10 and ISBN-13 checksums

7 times used
Programming

EAN Validator

Validate EAN-13 and GTIN checksums

9 times used
Programming

IMEI Validator

Luhn-based IMEI validation

8 times used
Programming

Bitwise Calculator

Evaluate bitwise expressions safely

8 times used
Programming

Twos Complement

8/16/32-bit signed and unsigned conversion

5 times used
Programming

Endian Converter

Swap byte order of a hex string

6 times used
Programming

IEEE-754 Bits

Show 32-bit float representation

7 times used
Programming

Text to Binary

Text to binary string (UTF-8)

6 times used
Programming

Binary to Text

Binary string back to text

8 times used
Programming

Text to Octal

Text to octal byte codes

6 times used
Programming

SVG to Data URI

Encode SVG for use in CSS or HTML

4 times used
Programming

Data URI to SVG

Decode an SVG data URI

6 times used
Programming

JS Minifier

Strip comments and collapse whitespace

7 times used
Programming

JSON Minifier

Minify JSON to one line

7 times used
Programming

XML Minifier

Minify XML markup

4 times used
Programming

CSS Variables

Extract --custom-properties from CSS

8 times used
Programming

CSS Class Extractor

Extract class names from HTML

6 times used
Programming

HTML ID Extractor

Extract id attributes from HTML

8 times used
Programming

Link Extractor

Extract href and src URLs from HTML

8 times used
Programming

Number Formatter

Add thousands separators; line1=decimals

7 times used
Programming

Bytes Formatter

Format byte counts like 1536 -> 1.5 KB

8 times used
Programming

Pluralizer

Apply simple English plural rules

6 times used
Programming

Commit Formatter

Build a conventional commit message

6 times used
Programming

Branch Name Cleaner

Sanitize a git branch name

5 times used
Programming

Version Bumper

Bump major, minor or patch of a semver

3 times used
Programming

Changelog Formatter

Prefix each entry line with a date

5 times used
Programming

cURL Generator

Build curl commands from method URL and headers

5 times used
Programming

fetch Generator

Generate JavaScript fetch code

8 times used
Programming

Status Code Lookup

Look up HTTP codes and phrases both ways

6 times used
Programming

ENV Generator

Convert JSON objects to dotenv lines

8 times used
Programming

Gitignore Generator

Generate gitignore for popular stacks

9 times used
Programming

Dockerfile Generator

Generate Dockerfiles for common stacks

8 times used
Programming

License Generator

Generate MIT Apache or GPL license text

6 times used
Programming

README Generator

Generate a README skeleton

4 times used
Programming

Badge Markdown

Shields badges for npm and GitHub

7 times used
Programming

package.json Generator

Generate a minimal package JSON file

4 times used
Programming

Editorconfig Generator

Generate a standard editorconfig file

7 times used
Programming

Sitemap Generator

Turn a URL list into sitemap XML

4 times used
Programming

Htaccess Redirects

Turn old to new lines into redirect rules

7 times used
Programming

Nginx Snippet

Generate an nginx server block

6 times used
Programming

JSON Seeder

Generate sample JSON objects for seeding

8 times used
Programming

Mock User JSON

Generate a random test user object

6 times used
Programming

Mock Product JSON

Generate a random test product object

9 times used
Programming

Lorem JSON

Generate lorem ipsum JSON objects

7 times used
Programming

Mock CSV

Generate sample CSV rows

5 times used
Programming

UUID Batch

Generate many UUIDs at once

7 times used
Programming

ID Batch

Batch generate uuid nanoid or ulid values

6 times used
Programming

JSON Schema Infer

Infer a JSON schema from sample data

4 times used
Programming

JSON to TypeScript

Convert JSON to TypeScript interfaces

4 times used
Programming

Color Name Finder

Find the nearest CSS color name

8 times used
Programming

Palette Generator

Generate color harmonies from a hex

6 times used
Programming

Contrast Checker

Check WCAG contrast ratio of two colors

8 times used
Programming

Shades Generator

Generate tints and shades of a hex color

8 times used
Programming

Text on Color

Pick readable black or white text color

8 times used
Programming

Gradient Stops

Generate even gradient stops between colors

8 times used
Programming

Easing CSS

Cubic bezier easing presets for CSS

5 times used
Programming

UTF-8 Bytes

Show UTF-8 byte values of text

3 times used
Programming

UTF-16 Units

Show UTF-16 code units of text

8 times used
Programming

Timestamp Code

Generate a time based version string

3 times used
Programming

Build Tag

Generate a build tag from the date

8 times used
Programming

Semver Parser

Parse a version string into parts

8 times used
Programming

HTML Boilerplate

Minimal HTML5 boilerplate snippet

11 times used
Programming

CSS Reset

Modern CSS reset snippet

7 times used
Security

XOR Cipher

Encrypt or decrypt text with a repeating XOR key

7 times used
Security

HOTP Generator

Generate HMAC-based one-time passwords from a secret

6 times used
Security

4-Digit PIN

Generate a random 4-digit PIN

9 times used
Security

6-Digit PIN

Generate a random 6-digit PIN

6 times used
Security

Memorable Password

Generate a word-word-word style passphrase

4 times used
Security

Password Match

Check whether two entered passwords match

7 times used
Security

Hash Compare

Compare two hashes for equality

8 times used
Security

CRC32 Checksum

Compute the CRC-32 checksum of text

11 times used
Security

CRC16 Checksum

Compute the CRC-16 checksum of text

9 times used
Security

Adler-32

Compute the Adler-32 checksum of text

10 times used
Security

Fletcher-16

Compute the Fletcher-16 checksum of text

11 times used
Security

FNV-1a Hash

Compute the 32-bit FNV-1a hash of text

8 times used
Security

DJB2 Hash

Compute the DJB2 hash of text

7 times used
Security

SDBM Hash

Compute the SDBM hash of text

8 times used
Security

Java hashCode

Compute the Java String hashCode of text

8 times used
Security

Hex Token

Generate a random hex token of N bytes

6 times used
Security

Base64 Token

Generate a random base64url token of N bytes

6 times used
Security

API Key Generator

Generate a prefixed random API key

7 times used
Security

JWT Secret

Generate a random 32-byte JWT signing secret

6 times used
Security

OTP Secret

Generate a random base32 OTP secret

5 times used
Security

Wordlist Mutator

Leet, case and year mutations of a word

6 times used
Security

Password Mask Audit

Show the character-class pattern of a password

4 times used
Security

Pepper Generator

Generate a random pepper string

6 times used
Security

Salt Generator

Generate a random salt in hex or base64

7 times used
Security

Session ID

Generate a random session identifier

7 times used
Security

CSRF Token

Generate a random CSRF token

5 times used
Security

Nonce Generator

Generate a random cryptographic nonce

6 times used
Security

PIN Strength

Analyze the entropy of a numeric PIN

5 times used
Security

Policy Checker

Check a password against a length and class policy

8 times used
Security

Keyboard Walk Detect

Detect qwerty and sequence patterns in a password

7 times used
Security

Common Password Check

Check a password against a top-200 common list

5 times used
Security

Backup Codes

Generate 10 single-use backup codes

3 times used
Security

otpauth URL Builder

Build an otpauth URL from issuer, account and secret

4 times used
Security

Email Validator

Validate an email address with RFC-style checks

6 times used
Security

Domain Validator

Validate domain name syntax

11 times used
Security

SPF Syntax Check

Validate the syntax of an SPF record

6 times used
Security

HTML Sanitizer

Strip HTML tags down to safe plain text

6 times used
Security

Unicode Normalizer

Normalize text to NFC, NFD, NFKC or NFKD

9 times used
Security

Homoglyph Finder

Flag non-ASCII lookalike characters

10 times used
Security

Secure Random

Generate a uniform random integer below a max

7 times used
Security

Diceware-5

Generate a 5-word diceware style passphrase

8 times used
Security

Short Wordlist PW

Generate a password of 4 short words

8 times used
Security

Mnemonic Words

Generate 12 random mnemonic words

7 times used
Security

Password Hint Audit

Show length and character-class hints only

6 times used
Security

Breach Format Check

Validate email colon hash breach line format

10 times used
Data

CSV to Markdown

CSV to MD table

8 times used
Data

Markdown to CSV

MD table to CSV

6 times used
Data

CSV to HTML

CSV to HTML table

9 times used
Data

HTML Table to CSV

Simple table parse

7 times used
Data

JSON to Markdown

Array of objects to MD table

7 times used
Data

JSON Keys

All keys as dot paths

6 times used
Data

JSON Flatten

Nested to flat dotted keys

8 times used
Data

JSON Unflatten

Dotted keys to nested

7 times used
Data

JSON Diff

Two JSON split by ---; key diff

5 times used
Data

Query String Parser

?a=1&b=2 to lines

5 times used
Data

Query String Builder

a=1 lines to query string

6 times used
Data

URL Parser

Break URL into parts

5 times used
Data

URL Builder

lines protocol/host/path... to URL

6 times used
Data

vCard Parser

vCard to readable lines

6 times used
Data

iCal Generator

line1=title,line2=start ISO,line3=end ISO -> .ics

10 times used
Data

WiFi QR Parser

Parse WIFI:T:...; strings

4 times used
Data

MECARD Generator

lines name/phone/email -> MECARD

7 times used
Data

SMS QR String

line1=number,line2=body -> SMSTO:

4 times used
Data

Geo QR String

line1=lat,line2=lng -> geo:

6 times used
Data

CSV Sort

line1=col index, rest=CSV

7 times used
Data

CSV Filter

line1=query, rest=CSV

5 times used
Data

CSV Dedupe

Remove duplicate rows

7 times used
Data

CSV Columns

line1=col indexes, rest=CSV

5 times used
Data

CSV Stats

Rows, cols, empty cells

5 times used
Data

JSONL to JSON

Lines to JSON array

5 times used
Data

JSON to JSONL

Array to lines

10 times used
Data

INI Parser

INI to JSON

5 times used
Data

INI Generator

JSON to INI

8 times used
Data

Properties Parser

.properties to JSON

5 times used
Data

Log Parser

Common Log Format to JSON lines

6 times used
Data

PEM Inspector

Type + base64 length of PEM

8 times used
Data

Markdown TOC

Generate table of contents

4 times used
Data

Frontmatter Parser

YAML frontmatter to JSON (simple)

5 times used
Data

RSS Generator

line per item title|link -> RSS

4 times used
Data

WebVTT Generator

lines as cues with 5s steps

5 times used
Data

SRT to VTT

Convert subtitles

4 times used
Data

VTT to SRT

Convert subtitles

8 times used
Data

Subtitle Shifter

line1=+/-ms, rest=SRT

6 times used
Data

LRC Generator

Lines to LRC with 3s steps

6 times used
Data

Chat Formatter

[time] name: msg lines -> tidy

7 times used
Data

Table Aligner

Align plain-text columns

3 times used
Data

Fixed-Width Parser

line1=widths csv, rest=rows -> JSON

9 times used
Data

Hex Dump

Classic hexdump view

6 times used
Data

Hexdump Reverse

Parse hexdump back to text

8 times used
Data

CSV Sampler

line1=N, rest=CSV -> N random rows

5 times used
Data

JSON Pick

line1=dot.path, rest=JSON

5 times used
Data

JSON Omit

line1=keys csv, rest=JSON -> without keys

5 times used
Data

Data Cleaner

Trim + drop empty lines + dedupe

5 times used
Data

CSV Transpose

Rows become columns

6 times used
Data

Pivot Count

Count by first column value

6 times used
Data

JSON to INI

Flat JSON to INI

8 times used
Data

CSV to JSONL

CSV rows to JSON lines

10 times used
Data

JSONL Stats

Count lines and key coverage

9 times used
Data

XML Attributes

Extract attribute names

4 times used
Data

HTML Meta Extractor

Extract meta name/content

8 times used
Data

URL Cleaner

Strip tracking params (utm_*)

3 times used
Data

mailto Parser

Parse mailto: links

5 times used
Math

Factorial

n! (n<=170)

9 times used
Math

Permutations

P(n,k); line1=n,line2=k

6 times used
Math

Combinations

C(n,k); line1=n,line2=k

5 times used
Math

Quadratic Solver

ax²+bx+c; line1=a,line2=b,line3=c

5 times used
Math

Linear Solver

ax+b=0; line1=a,line2=b

8 times used
Math

2x2 System

Two equations lines

5 times used
Math

Matrix Add

Two 2x2 (4 nums per line)

6 times used
Math

Matrix Multiply

Two 2x2

3 times used
Math

Determinant

2x2 or 3x3

3 times used
Math

Transpose

Matrix transpose

4 times used
Math

Prime Factors

Factorization

3 times used
Math

Prime List

Primes up to N; line1=N

3 times used
Math

Primes in Range

line1=a,line2=b

9 times used
Math

Perfect Number

Check perfect number

6 times used
Math

Decimal to Fraction

0.75 -> 3/4

5 times used
Math

Fraction to Decimal

3/4 -> 0.75

8 times used
Math

Fraction Math

line1=a/b,line2=op,line3=c/d

8 times used
Math

Mixed Numbers

Improper <-> mixed

5 times used
Math

Modular Power

a^b mod m lines

4 times used
Math

Modular Inverse

a^-1 mod m

9 times used
Math

Euler Totient

phi(n)

8 times used
Math

Simple Interest

P,r,t lines

5 times used
Math

Compound Interest

P,r,n,t lines

6 times used
Math

Loan Payment

Monthly payment

7 times used
Math

Tip Calculator

line1=bill,line2=%

4 times used
Math

Discount Calc

line1=price,line2=%off

6 times used
Math

Tax Calc

line1=amount,line2=rate,line3=add/remove

5 times used
Math

Unit Price

Compare price/qty lines

6 times used
Math

Fuel Economy

L/100km and MPG

7 times used
Math

BMR Calculator

Mifflin-St Jeor; line1=kg,line2=cm,line3=age,line4=m/f

8 times used
Math

TDEE Calculator

BMR x activity; line5=level 1-5

10 times used
Math

Body Fat %

Navy method lines

9 times used
Math

Waist Ratio

Waist-to-height ratio

5 times used
Math

Pace Calculator

line1=distance km,line2=time min -> min/km

6 times used
Math

Speed Calc

distance/time -> km/h

6 times used
Math

Triangle Calc

Sides -> area/perimeter

5 times used
Math

Circle Calc

Radius -> area/circumference

7 times used
Math

Rectangle Calc

w,h -> area/perimeter/diagonal

8 times used
Math

Sphere Calc

r -> volume/surface

4 times used
Math

Cylinder Calc

r,h -> volume/surface

5 times used
Math

Cone Calc

r,h -> volume

7 times used
Math

Pythagoras

Two sides -> hypotenuse/missing

7 times used
Math

2D Distance

x1,y1 / x2,y2 lines

8 times used
Math

Midpoint

Of two points

3 times used
Math

Slope

Of line through 2 points

6 times used
Math

Logarithm

line1=value,line2=base

5 times used
Math

Antilog

line1=base,line2=y

5 times used
Math

Nth Root

line1=value,line2=n

6 times used
Math

Power

x^y lines

5 times used
Math

Scientific Notation

To/from a×10^b

4 times used
Math

Weighted Average

value:weight lines

3 times used
Math

Harmonic Mean

Of list

5 times used
Math

Geometric Mean

Of list

6 times used
Math

Z-Score

line1=x, rest=list

6 times used
Math

Percentile

line1=x, rest=list

6 times used
Math

Range Stats

min/max/range of list

8 times used
Math

Sum & Product

Of list

8 times used
Math

Dice Expected

NdM expected value

5 times used
Math

Random Number

line1=min-max

6 times used
Math

Random Picker

Pick random line

7 times used
Math

Coin Flip

line1=count

9 times used
Math

Dice Roller

NdM notation

8 times used
Math

Card Draw

Draw N cards; line1=count

8 times used
Math

Lottery Numbers

line1=count-max (e.g. 6-49)

7 times used
Math

List Shuffler

Shuffle lines (Fisher-Yates)

7 times used
Math

Pascal Triangle

N rows; line1=count

6 times used
Math

Collatz Steps

Sequence + step count

10 times used
Math

GPA Calculator

Grade:credits lines to GPA

6 times used
Math

Ratio Simplifier

Simplify a:b

8 times used
Math

Proportion Solver

a/b=c/x; line with x

4 times used
Math

Significant Figures

Round to N sig figs; line1=N

3 times used
Network

CIDR Merge

Merge overlapping CIDRs

8 times used
Network

CIDR Split

Split to smaller prefix; line1=new bits

5 times used
Network

IP Range Lister

Expand range (max 1024)

6 times used
Network

Wildcard Mask

From subnet mask

4 times used
Network

IPv4 Validator

Validate IPv4

6 times used
Network

IPv6 Validator

Validate IPv6

5 times used
Network

CIDR Validator

Validate CIDR notation

5 times used
Network

MAC Validator

Validate MAC formats

9 times used
Network

Private IP Check

RFC1918/loopback/link-local

8 times used
Network

IP Class Finder

Class + public/private

9 times used
Network

IP to Binary

Dotted to binary

8 times used
Network

IP to Hex

Dotted to hex

9 times used
Network

Binary to IP

32-bit binary to dotted

5 times used
Network

Hex to IP

Hex to dotted

8 times used
Network

EtherType Lookup

Hex -> protocol name

6 times used
Network

HTTP Methods Ref

Method reference table

8 times used
Network

DNS Types Ref

Record type reference

10 times used
Network

Bandwidth Calc

Convert bps/Kbps/Mbps/Gbps

10 times used
Network

Transfer Time

size + speed -> time

6 times used
Network

VLSM Planner

Allocate from supernet; line1=supernet,rest=sizes

6 times used
Network

Supernet Calc

Smallest supernet of CIDRs

8 times used
Network

Mask Converter

/24 <-> 255.255.255.0

3 times used
Network

Host Counter

Usable hosts in CIDR

9 times used
Network

First/Last IP

In subnet

8 times used
Network

Network Address

From IP/prefix

8 times used
Network

Broadcast Address

From IP/prefix

6 times used
Network

IPv4 to IPv6

IPv4-mapped ::ffff:

6 times used
Network

IPv6 to PTR

ip6.arpa name

8 times used
Network

PTR to IP

arpa name to IP

5 times used
Network

EUI-64

MAC to IPv6 link-local

6 times used
Network

TCP Flags

Decode flag byte hex

5 times used
Network

ICMP Types

Type/code reference

7 times used
Network

WiFi Channels

2.4/5 GHz channel table

6 times used
Network

DSCP Table

DSCP codepoints reference

8 times used
Network

MTU Reference

Common MTU values

6 times used
Time

Age Calculator

Compute age in years months and days from birthdate

8 times used
Time

Countdown

Time remaining until a target date and time

8 times used
Time

Time Since

Elapsed time since a past date

4 times used
Time

Date Adder

Add or subtract days from a date

6 times used
Time

Month Adder

Add or subtract months from a date

7 times used
Time

Business Days

Count weekdays between two dates

9 times used
Time

Next Birthday

Days until next birthday from MM-DD

6 times used
Time

Day of Week

Find weekday for a date

7 times used
Time

Day of Year

Day number within the year

10 times used
Time

Quarter Finder

Quarter number and start end dates

7 times used
Time

ISO 8601

Parse ISO dates or format current time

10 times used
Time

RFC 2822

Format date as email header date

8 times used
Time

ms Converter

Convert milliseconds to H MM SS and back

5 times used
Time

Duration Parse

Parse 1h30m15s style duration to seconds

7 times used
Time

Duration Format

Format seconds as readable duration

6 times used
Time

Sleep Cycles

Wake times from bedtime in 90 minute cycles

3 times used
Time

Work Hours

Shift length minus break time

4 times used
Time

Meeting Planner

One meeting time across UTC offsets

3 times used
Time

Epoch Batch

Convert a list of epoch timestamps

11 times used
Time

Date Validator

Validate dates including leap years

8 times used
Time

Easter Date

Western Easter Sunday for a year

6 times used
Time

Friday 13ths

List Friday the 13ths in a year

6 times used
Time

Weeks in Year

Count ISO weeks in a year

7 times used
Time

Age in Seconds

Fun age breakdown in seconds

10 times used
Time

10000th Day

Date of your ten thousandth day

6 times used
Time

Overlap Finder

Overlap of two date ranges

6 times used
Time

Moon Phase

Approximate moon phase for a date

3 times used