Text & Developer Tools
Word & Character Counter
Count words, characters, sentences, paragraphs and lines instantly. Runs entirely in your browser — your text never leaves your device.
Private · in-browserCase Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more — instantly in your browser.
Private · in-browserSlug Generator
Turn any title into a clean, URL-friendly slug. Removes accents and punctuation; runs in your browser.
Private · in-browserText Reverser
Reverse any string character by character. Handles Unicode correctly; runs locally.
Private · in-browserRemove Duplicate Lines
Strip duplicate lines from a list, keeping the first occurrence. Optional case-insensitive and trim modes.
Private · in-browserSort Lines
Sort lines alphabetically, ascending or descending, with optional case-insensitive comparison.
Private · in-browserNumber Base Converter
Convert numbers between binary, octal, decimal and hexadecimal (or any base 2–36).
Private · in-browserRoman Numeral Converter
Convert numbers to Roman numerals and back (1–3999), instantly in your browser.
Private · in-browserBase64 Encode / Decode
Encode text to Base64 or decode Base64 back to text (UTF-8 safe), entirely in your browser.
Private · in-browserURL Encode / Decode
Percent-encode text for safe use in URLs, or decode encoded URLs back to text.
Private · in-browserHTML Encode / Decode
Escape HTML special characters (&, <, >, ", ') or decode entities back to text.
Private · in-browserEpoch / Unix Timestamp Converter
Convert Unix timestamps (seconds or milliseconds) to human-readable UTC dates and back.
Private · in-browserJWT Decoder
Decode a JSON Web Token to inspect its header and payload. Decoding only — no verification, all in your browser.
Private · in-browserJSON Formatter & Validator
Pretty-print, minify and validate JSON with clear error messages — entirely in your browser.
Private · in-browserJSON ↔ CSV Converter
Convert between JSON arrays and CSV in your browser. Handles nested keys and quoting.
Private · in-browserXML Formatter
Pretty-print and indent XML for readability, locally in your browser.
Private · in-browserYAML ↔ JSON Converter
Convert YAML to JSON and back, right in your browser.
Private · in-browserDiff Checker
Compare two blocks of text and highlight the differences line by line.
Private · in-browserRegex Tester
Test regular expressions against sample text with live match highlighting and flags.
Private · in-browserLorem Ipsum Generator
Generate placeholder lorem ipsum text by words, sentences or paragraphs.
Private · in-browserHash Generator (SHA-1 / SHA-256 / SHA-384 / SHA-512)
Generate cryptographic hashes of text using the browser’s Web Crypto API. Nothing is uploaded.
Private · in-browserMarkdown Preview
Write Markdown and see a live HTML preview, rendered safely in your browser.
Private · in-browserFind & Replace
Find and replace text with optional case-insensitive and regex modes, all in your browser.
Private · in-browserCron Expression Parser
Explain a cron expression in plain English and preview its schedule.
Private · in-browserUUID Generator
Generate random v4 UUIDs in your browser, one or many at a time.
Private · in-browser