Developer Experience
Ship Faster With Polished Utilities
Use our lightweight helpers to validate payloads, inspect encodings, and generate IDs without leaving your browser. Each tool is tuned for quick troubleshooting and confident delivery.
Explore the Toolbox
Every utility opens instantly in the browser with keyboard-first workflows and saved state.
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JSON Pretty
Format and validate JSON payloads with instant error feedback.
Open JSON Pretty -
Base64
Encode or decode Base64 strings while keeping the original content handy.
Open Base64 tool -
QR Code Generator
Build custom QR codes with brand colours, flexible margins, and downloadable PNG or SVG assets.
Generate a QR code -
Colour inverter
Flip any colour to its complement and explore wheel rotations on the fly.
Open Colour inverter -
UUID
Generate UUID v4 identifiers for API requests, seed data, and experiments.
Open UUID tool -
JWT Viewer
Decode JWTs safely to inspect headers, payloads, and signature details.
Open JWT Viewer -
Markdown Preview
Draft Markdown side-by-side with a live preview and syntax tray.
Open Markdown Preview