Developer Tools

Essential tools for software developers and programmers — 11 free tools

Format, validate and beautify JSON data instantly online.

Minify and compress JSON data to reduce file size.

Encode and decode text or files using Base64 encoding.

Generate unique UUIDs (v1, v4) instantly for your projects.

Decode and inspect JSON Web Token (JWT) payloads.

Encode or decode URLs and query parameters.

Encode special characters to HTML entities and back.

Test and debug regular expressions with live matching.

Compare two blocks of text and highlight the differences.

Write and edit Markdown with syntax highlighting. All processing happens in your browser.

Build and validate cron expressions with a visual editor.

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