Developer tools
The original browser-only tools are being ported into this Next.js Worker app. The index is live first so existing routes have a stable home.
Format, validate, and minify JSON with syntax highlighting.
Generate UUID v4 (random) and v7 (timestamp) in bulk.
Encode and decode text or files to Base64 instantly.
Test regular expressions with live match highlighting.
Build cron expressions visually with next-run previews.
Convert between numeric (755) and symbolic (rwxr-xr-x) permissions.
Decode and inspect JSON Web Token headers and payloads.
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
Generate .gitignore files for Node, Python, Go, Rust, and more.
Build ~/.ssh/config entries visually with presets.
Generate all 10 required macOS app icon sizes from one image.
Count tokens for GPT-4o, Claude, Gemini, and other LLMs.