Developer tools

12 free online tools in Developer: JSON, encoding, hashing and text utilities for devs. Runs in your browser, no sign-up.

• JSON Formatter: Format, validate and minify JSON.
• JSON ⇄ CSV: Convert JSON arrays to CSV and back.
• Base64 Encode/Decode: Encode or decode Base64 text and files.
• URL Encode/Decode: Encode or decode a URL or query string.
• Hash Generator: Generate MD5-style, SHA-1, SHA-256 and SHA-512 hashes.
• JWT Decoder: Decode a JWT header and payload (no verification).
• UUID Generator: Generate random UUID v4 identifiers.
• Regex Tester: Test a regular expression against sample text, live.
• JSON ⇄ YAML: Convert between JSON and YAML.
• JSON ⇄ XML: Convert between JSON and XML.
• SQL Formatter: Format and indent SQL for MySQL, PostgreSQL, SQLite and more.
• HTML/CSS/JS Formatter: Beautify and indent HTML, CSS or JavaScript.