
Equations that transform, term by term
Write an equation like on a calculator and reveal it one term at a time. Shapes, equations and graphs glide and morph into each other from one slide to the next.
Manim alternative
Manim is a wonderful animation library, but every scene is a Python program and every change means a new render. Tracé gives you the same kind of moving maths in your browser: you click instead of coding, and you see the result straight away.


Write an equation like on a calculator and reveal it one term at a time. Shapes, equations and graphs glide and morph into each other from one slide to the next.

What you see in the editor is the finished animation. Change a number and the graph, its labels and the moving point follow at once, even while you present.

Turn the whole deck into an MP4 in your browser. Want to fine-tune it in Manim? Pro exports the Python script of your slides so you can keep going in code.
you want control of every frame, you enjoy writing Python, and the result is a video you render once.
you want a lesson ready today, to present it live with sliders, and to change it in seconds before class.
| Manim | Tracé | |
|---|---|---|
| What it is | An open-source Python library for explanatory maths videos | A slide editor for maths and physics in the browser |
| How you build a scene | Write a Python script | Menus and clicks; maths typed like on a calculator |
| What you get | A rendered video file | Live slides with sliders, a share link, an MP4 video, and on Pro the Manim script |
| Changing something | Edit the code, then render again | See it at once, even while presenting |
| Price | Free (MIT licence) | Free editor; Pro from $6 a month, billed yearly |
Manim facts: the 3Blue1Brown FAQ and the Manim package page, checked 24 October 2026. 3Blue1Brown FAQ · PyPI
No. Tracé draws its animations in the browser. If you want to continue in Manim, Pro can export a Python script of your deck.
No. Everything is done with clicks, and maths is typed like on a calculator.
Yes. Any deck becomes an MP4 video in one click. Free videos carry a small Tracé badge; Pro removes it and lets you record your voice.
The editor and every animation are free. Pro adds advanced 3D, your voice, the Manim script and more online space.
Start with an example deck or a blank slide. It takes a minute.