Browser-first developer toolkit

Ship faster with tools that live one click away.

No installs. No account wall. Everything runs locally in your browser and keeps your workflow moving.

Scratchpad with auto-save, quick import, export, and clipboard actions.

Monaco-powered editor with templates, per-language drafts, and export actions.

Excalidraw whiteboard with local autosave and scene export support.

Visual side-by-side diff with editor controls and change stats.

Upload CSV files into an interactive grid with filters and quick search.

Validate, format, minify, and sort JSON with instant parse feedback.

Live regex matching with flag toggles, captures, and replacement preview.

Decode JWT header and payload with readable claim timestamps.