Developer Tools
Format, encode, hash and generate — the everyday dev toolkit.
A fast, free developer toolkit: format and validate JSON, encode/decode Base64 and URLs, generate SHA hashes and UUIDs, and convert Unix timestamps. No data leaves your browser.
JSON Formatter
Format, beautify, minify and validate JSON.
→Base64 Encode / Decode
Encode text to Base64 or decode it back.
→URL Encode / Decode
Percent-encode or decode URLs and query strings.
→Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
→UUID Generator
Generate random version-4 UUIDs.
→Unix Timestamp Converter
Convert between Unix timestamps and dates.
→JWT Decoder
Decode and inspect JSON Web Tokens.
→CSV to JSON
Convert CSV data into JSON instantly.
→Regex Tester
Test regular expressions with live matches.
→Text Diff Checker
Compare two texts and see the differences.
→HTML / CSS / JS Minifier
Minify HTML, CSS or JS by stripping whitespace and comments.
→Number Base Converter
Convert numbers between binary, octal, decimal and hex.
→HTML Entity Encode / Decode
Encode text to HTML entities or decode them back.
→JSON to CSV
Convert a JSON array of objects into CSV.
→Markdown Editor
Write Markdown with a live HTML preview.
→YAML to JSON
Convert YAML into JSON instantly.
→JSON to YAML
Convert JSON into clean YAML.
→Markdown to HTML
Convert Markdown to clean HTML.
→HTML to Markdown
Convert HTML into clean Markdown.
→SQL Formatter
Beautify and format SQL queries.
→XML Formatter
Beautify and indent XML.
→.gitignore Generator
Build a .gitignore from templates.
→.htaccess Generator
Generate common Apache .htaccess rules.
→Cron Expression Generator
Build and understand cron schedules.
→SVG to Base64
Encode an SVG as a Base64 data URI.
→SVG Optimizer
Minify and clean up SVG code.