Manimble: Open-Source Slide Editor Where Every Slide Is a Python Program
lpachter · x · 2026-11-16
Computational biologist Lior Pachter and Joseph Rich released Manimble, a free, BSD-licensed slide editor (macOS 13+, Windows soon). Under the hood, every slide is a short Python program built on Manim and Manim Slides — yet you edit like in Keynote or PowerPoint, and each canvas change is written back as a small, readable code edit.
Because slides are code, decks can do what slide software can't: LaTeX-typeset formulas, real animations, and plots drawn from your data in Python. Decks live happily in git with meaningful diffs, and you can hand-write Manim anytime. A built-in terminal lets you run Claude Code, Codex, or Gemini CLI so an AI coding agent revises slides that update within seconds, side by side with your own edits.
It imports PowerPoint, Keynote, and Beamer decks (every element becomes Manim code), exports to those formats plus PDF/MP4, and packages decks as a single .manimble file. Presenter View, notes, a timer, a practice feedback mode, and self-narrating scripted presentations are included. The companion BioCartoon provides 16K open bio illustrations, integrated into Manimble. The app itself was built using Claude and ChatGPT.
Related event: Manimble: Open-Source Slide Editor Where Every Slide Is Python Code(4 posts)→
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