Open Source Animation Software
Animation is unusually expensive in time: a few seconds of finished motion can mean days of drawing frames, rigging, or tweening, which makes losing access to a project a uniquely painful way to lose work. When the tool that opens your scene is a subscription, the month it lapses can put weeks of effort behind a paywall. Open source animation tools remove that risk by keeping your scenes, frames, and exports in a pipeline you control and can reopen years later. The category is broad, though: hand-drawn frame-by-frame, cutout and vector tweening, full 3D, and code-driven animation are genuinely different crafts, so the real task is matching a tool to how you build motion rather than to a feature list.
Manim
Engine for precise programmatic animations, made for explanatory math videos
Graphite
Free open source vector and raster editor with nondestructive layers and a node-based procedural engine
Video2X
Machine learning video super resolution and frame interpolation for Windows, Linux, and containerized use
Blender
Free 3D creation suite covering modeling, animation, rendering, compositing, motion tracking, and video editing
Krita
Free and open source digital painting app for creating artwork, comics, illustrations, and concept art
OpenToonz
Full-featured 2D animation software based on the Toonz tool used by Studio Ghibli
OpenShot Video Editor
Free and open-source video editor for Linux, Mac, and Windows with FFmpeg formats and timeline editing
Synfig Studio
Industrial-strength 2D animation that uses tweening to avoid drawing every frame
Pencil2D
Easy, intuitive tool for 2D hand-drawn animation with bitmap and vector drawing
Our picks
These tools are not interchangeable, so pick by the kind of animation you make.
Best for 3D animation: Blender Blender is a complete 3D suite that takes a project from modeling and rigging through animation, simulation, and rendering without leaving the app. It also handles compositing, motion tracking, and video editing, and exposes a Python API for scripting and batch work. For character or motion-graphics work in 3D, it is the open standard.
Best for vector tweening: Synfig Studio Synfig Studio animates by interpolation: you set keyframes and it calculates the in-between frames, so you avoid redrawing every step. It works with both vector shapes and imported bitmap art and targets film-quality 2D on Windows, Linux, and macOS. It suits a small team that wants smooth motion without frame-by-frame labor.
Best for a traditional 2D pipeline: OpenToonz OpenToonz is a full-featured 2D tool for drawing, inking, coloring, and compositing frames into finished sequences. It descends from the Toonz software customized by Studio Ghibli across years of feature production, and its Modified BSD license allows any personal or commercial use. It fits serious 2D animators and students of traditional technique.
Best for code-driven animation: Manim Manim builds animation from Python code rather than a canvas, rendering scenes to video or single frames with optional LaTeX for typeset math. It gives exact control over how objects move and transform, which is why it underpins so much explanatory math video. Choose it when precision and programmatic control matter more than a hand-drawn look.
Match the tool to how you build motion
The kind of animation you make narrows the field faster than any feature comparison. For hand-drawn, frame-by-frame work, Pencil2D offers an easy, focused drawing surface that mixes bitmap and vector, while OpenToonz and Tahoma2D bring a full 2D pipeline descended from the Toonz software used in Studio Ghibli productions, with Tahoma2D adding stop motion capture. If you would rather set keyframes than draw every frame, Synfig Studio interpolates the in-between frames from vector and bitmap art. For 3D, Blender covers modeling, rigging, animation, and rendering in one suite.
Code-driven animation is its own branch, and worth knowing about even if you draw. Manim defines scenes in Python and renders them to video or single frames, which makes it the tool behind a great deal of precise, explanatory math animation. Krita, primarily a painting app with a deep brush engine, also handles frame-by-frame animation and suits artists who want painterly frames. The point is that these tools are not interchangeable: a strong 2D drawing app is a poor fit for 3D, and a programmatic engine is a poor fit for hand-drawn work.
Whatever you choose, weigh input, performance, and the exit before you commit a real production. Drawing-heavy tools like Krita and Pencil2D live or die on tablet and stylus feel, so test pressure and latency on your own hardware. Large scenes and high frame counts expose slow playback and rendering, and Blender's Python API helps when you need batch renders or pipeline hooks. Confirm that your tool can export usable frames, image sequences, or scene data, so a finished shot is never trapped inside one application.
Related categories
Frequently asked questions
How do I pick between hand-drawn 2D, vector tweening, and 3D?+
Decide by how motion is built, not by which interface looks familiar. Hand-drawn work needs strong drawing tools and onion skinning, which Pencil2D, OpenToonz, and Tahoma2D provide. Vector tweening, where you set keyframes and the software fills the gaps, is Synfig Studio's approach. Full 3D, with rigging, cameras, and rendering, points to Blender. If a project mixes styles, test the handoff between tools early rather than late.
Can I animate with code instead of drawing?+
Yes, and for some work it is the better path. Manim lets you define scenes in Python and render them to video or individual frames, with optional LaTeX for typeset mathematical notation. It is the engine behind a great deal of precise, explanatory math animation, where exact positioning and timing matter more than a hand-drawn look. It is not a drawing tool, so it suits programmatic motion rather than character animation.
How much does tablet and stylus support matter, and which tools are drawing-first?+
For any drawing-heavy animation it is critical. A tool can feel fine with a mouse and be unusable for long sessions with a pen. Krita is built around a deep brush engine and is drawing-first, and Pencil2D offers a fast, focused hand-drawing surface. Test pressure, tilt, and latency on the exact tablet and operating system you will use, since stylus behavior varies more than the feature list suggests.
Do any of these do stop motion, not just drawn animation?+
Yes. Tahoma2D handles both traditional 2D animation and stop motion capture in the same application, so drawn and photographed frames live in one project. That makes it a flexible choice if you move between techniques or want to combine physical footage with drawn elements. Its sibling OpenToonz focuses on the drawn 2D pipeline, so pick Tahoma2D specifically if stop motion is part of your workflow.
Is Blender overkill if I only do 2D?+
Possibly. Blender is a complete 3D suite covering modeling, rigging, simulation, rendering, compositing, and video editing, which is a lot of surface area if you only draw flat animation. For pure 2D, a dedicated tool is usually a gentler fit: Synfig Studio for vector tweening, or OpenToonz and Pencil2D for frame-by-frame work. That said, Blender has its own 2D drawing workflow, so it is worth a look if you expect to grow into 3D.
Can I use open source animation tools commercially?+
Generally yes, though the license still matters. Tahoma2D and OpenToonz use a permissive Modified BSD license that allows personal or commercial use freely, Blender and Synfig Studio are GPL, and Manim is MIT. The artwork you create is normally yours, but do not assume bundled sample rigs, brushes, or templates share the application's license. For a studio, training and pipeline changes usually cost more than the software itself.
What happens if one of these projects stops being maintained?+
Your exposure comes down to how portable your work is. If the tool exports usable image sequences, frames, models, and audio timing, moving on is an inconvenience rather than a loss. Tools that save in documented formats age better than those relying on opaque project files or niche plugins. Keep installers, dependencies, and rendered frames archived alongside finished productions, so an abandoned tool never strands a shot you cannot reopen.