Developer Tools,
Built for Speed
Free, privacy-first utilities that run entirely in your browser. No account needed, no data leaves your machine.
JSON Formatter & Validator
Beautify, minify, and validate JSON with syntax highlighting and error line detection.
Base64 Encoder / Decoder
Encode or decode Base64 text, images, and files entirely in your browser.
UUID Generator
Generate UUID v1, v4, or v7 in bulk — up to 10,000 at once. Export as TXT or CSV.
URL Encoder / Decoder
Encode or decode URLs and query strings with automatic query string parsing.
Unix Timestamp Converter
Convert Unix timestamps to human dates and back. Live ticking current timestamp.
JWT Decoder
Decode and inspect JWT header, payload, and expiry status. Never sends your token anywhere.
Cron Expression Parser
Parse cron expressions into plain English and preview the next 5 scheduled run times.
Regex Tester
Test regular expressions with live match highlighting, group extraction, and a pattern library.
SQL Formatter
Beautify SQL queries with syntax highlighting. Supports MySQL, PostgreSQL, SQL Server, and more.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text or files. Verify file checksums.
Text Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, Title Case, and more.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal — supports 64-bit values.
HTML Encoder / Decoder
Encode HTML special characters to entities or decode entities back to text. Prevents XSS.
Password Generator
Generate cryptographically secure passwords with custom length and character sets.
Diff Checker
Compare two texts side by side and see exactly what changed with line-by-line highlighting.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words. Download as TXT.
Color Converter
Convert colors between HEX, RGB, RGBA, HSL, and HSLA with a live color swatch.
Word Counter
Count words, characters, sentences, paragraphs, and reading time. Live as you type.
JSON ↔ CSV Converter
Convert JSON arrays to CSV or CSV back to JSON. Handles quoted fields, download output.
Markdown Previewer
Live Markdown preview with GitHub Flavored Markdown support. Copy rendered HTML.