Developer Tools

Free Developer Tools

A curated collection of privacy-focused developer utilities. Every tool runs 100% in your browser — no data is sent to any server, ever.

• Password Generator — Generate secure, random passwords with customizable options.
• JWT Decoder — Decode and inspect JWT tokens locally without sending data anywhere.
• Base64 Encoder/Decoder — Encode and decode Base64 strings instantly.
• JSON Formatter — Validate and pretty-print JSON with syntax highlighting.
• Hash Generator — Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
• Color Converter — Convert between HEX, RGB, and HSL color formats.
• Timestamp Converter — Convert Unix timestamps to human-readable dates and vice versa.
• UUID Generator — Generate random UUIDs/GUIDs.
• Regex Tester — Test and debug regular expressions with live matching.
• Lorem Ipsum Generator — Generate placeholder text for your designs and layouts.
• Markdown Previewer — Write and preview markdown in real-time with syntax highlighting.
• Diff Checker — Compare two text inputs and highlight differences line by line.

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