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Upload and format Jupyter Notebooks (.ipynb) client-side. Cells are dynamically paginated to prevent text cutting. Render formulas, figures, code outputs, and customize details natively.
or choose a file from your hard drive to format it instantly.
Run python scripts, manage directories, and execute Jupyter commands from your command line.
Interactive Git graph & CLI sandbox
Master Git branching, rebases, merges, cherry-picks, detached HEAD, and stashes with a live reactive DAG graph and interactive terminal.
Typing test for developers
Practice everyday typing, code symbols, terminal commands, and long-form developer text. Tracks WPM, accuracy, streak, and consistency score.
Live markdown preview
Split-pane markdown editor with real-time preview. Perfect for writing README files, documentation, and blog posts with export to HTML.
Visual gradient generator
Build linear, radial, and conic CSS gradients visually. Add stops, adjust angles, and copy ready-to-use CSS or Tailwind classes.
Mermaid diagram editor & previewer
Interactive Mermaid diagram editor with live SVG rendering, theme selection, presets, zoom/pan canvas, and export to SVG, PNG, and .mmd.
Generate & Read QR Codes
Create custom QR codes for URLs, Wi-Fi, Contacts, and Text with color & logo options, or upload/scan QR codes to decode content instantly.