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.
Notepad
Scratchpad with auto-save, quick import, export, and clipboard actions.
Code Editor
Monaco-powered editor with templates, per-language drafts, and export actions.
Jupiter Notebook
Notebook-like JavaScript cells that run fully in your browser with no server.
Drawing Pad
Excalidraw whiteboard with local autosave and scene export support.
QR Generator
Turn URLs into downloadable QR codes for quick sharing and mobile testing.
Markdown Tool
Write markdown with a live preview, split view, and import/export actions.
Diff Tool
Visual side-by-side diff with editor controls and change stats.
CSV Viewer
Upload CSV files into an interactive grid with filters and quick search.
JSON to YML
Convert JSON data to YAML format without leaving your browser.
HTTP Header Inspector
Parse raw request or response headers into readable key/value rows.
Color Theme Picker
Pick colors and generate CSS variables to build consistent website themes.
UUID Generator
Generate one or many UUID v4 values instantly with browser crypto.
Time Converter
Convert Unix timestamps and ISO date/time values both ways.
URL Parser / Builder
Inspect URL parts and query strings for debugging links and APIs.
Base64 Encoder/Decoder
Encode or decode Base64 values locally for tokens, fixtures, and API testing.
JSON Formatter
Validate, format, minify, and sort JSON with instant parse feedback.
Regex Tester
Live regex matching with flag toggles, captures, and replacement preview.
JWT Decoder
Decode JWT header and payload with readable claim timestamps.