A fast, beautiful Python scratchpad — write code, run it, debug line‑by‑line, and watch your data structures and algorithms come alive.
Grab the latest build from the Releases page →
| Platform | Installer |
|---|---|
| Windows | PyPad-…-Setup.exe — from the latest release |
| macOS | PyPad‑macOS.dmg (direct download) |
Builds are currently unsigned — on Windows choose More info → Run anyway in SmartScreen; on macOS right‑click the app → Open the first time.
- Frameless, themeable editor — custom window chrome, light/dark toggle (Catppuccin Mocha / GitHub Light), Fira Code, multi‑tab editing, a folder explorer, and font/size settings.
- IntelliSense — Jedi‑powered completions, signatures and hover, running off the UI thread.
- Run any code — pick your Python interpreter; stdout/stderr stream live, and an input line feeds
input()programs. - Line‑by‑line debugger — breakpoints, step in/over/out, continue, a current‑line marker and a live variables panel.
- Live DSA Visualizer 🧠 — the star feature. Your actual code drives the animation: press Play and watch the real variables evolve, or Step through line by line.
- 93 algorithms across 13 categories: Sorting, Searching, Two Pointers, Sliding Window, Arrays, Dynamic Programming, Matrix, Grid Pathfinding, Backtracking (Maze, Sudoku, N‑Queens, Knight's Tour), Linked List, Stack/Queue, Trees, and Graphs.
- 6 renderers: animated bars, 2D grid/matrix, binary tree, graph, linked list, and boxes — with pointer/window highlights, visited cells, and a variables split.
- Edit the code, change the input, and re‑run — the visualization always reflects your code.
- Download and install for your OS (above).
- Launch PyPad and start typing, or open the Algorithms panel (the list icon on the left toolbar) and pick one — its code loads into the editor.
- Press ▶ Play in the Visualizer tab to animate it, or set a breakpoint and Debug to step through.
PyPad asks you to sign in with Google on launch — purely so we can see how many people use PyPad.
- What's stored: your Google name and email, to create your account (handled by Google / Firebase — PyPad never sees your password).
- What's never collected: your code, files, keystrokes, editor content, or usage tracking. Everything you write stays on your machine.
- You can Sign Out any time from the user menu in the title bar (or Help → Sign Out).
Found a bug or have an idea? Please open an issue.
© 2026 vkfolio. PyPad is free to download and use. Built with Python & PySide6.