Best Morphing SVG Libraries in 2026 (Path & Shape Interpolation)
Morphing SVG shapes—transforming an icon from a hamburger menu into an 'X', or a circle into a star—creates smooth visual transitions. However, interpolating paths with mismatched vertex counts requires specialized algorithms.
We make ExodeUI, which is on this list. We place it where it fits and state plainly when another tool is the better choice.
For commercial web development, GSAP (with MorphSVGPlugin) is the undisputed benchmark for handling mismatched point counts seamlessly. For open-source data visualizations, Flubber is the top utility for interpolating irregular geographic polygons. For interactive vector state machines, ExodeUI provides visual authoring and native runtimes.
Quick picks by job
How we compared them
- Handling of mismatched vertex counts and sub-paths without visual glitches
- Interpolation smoothness and avoidance of shape twisting during transitions
- Performance under high-frequency animation and mobile browser execution
- Simplicity of API integration within modern JavaScript frameworks
The 5 Best SVG Shape Morphing Libraries in 2026
1. GSAP MorphSVGPlugin
Best for: Complex SVG morphing between shapes with different numbers of anchor points
- Platforms
- Web / JavaScript, React, Vue, Svelte
- Price
- Requires Club GreenSock membership
- Output
- Optimized path d attributes rendered via GSAP
The industry's most advanced SVG morphing engine, automatically matching vertices and preventing shape inversion.
Pros and cons
- Automatically adds anchor points to match mismatched shapes
- Allows selecting origin points (shapeIndex) to prevent twisting
- Works with raw path data or DOM selectors
- Requires paid Club GreenSock subscription
- Commercial proprietary plugin
2. ExodeUI (Vector Transitions)
Best for: Interactive vector shape morphing triggered by state machine transitions and inputs
- Platforms
- Web, React, Vue, Svelte, iOS, Android
- Price
- Free Community plan; Professional $29/mo
- Output
- Open .exode JSON files with vector keyframe blending
ExodeUI pairs a visual vector design workspace with state machines that blend shapes smoothly across interaction states.
Pros and cons
- Visually design shape transitions without writing raw bezier math
- Open JSON file format diffable with Git and scriptable via AI (MCP)
- Official runtimes for React, Vue, Svelte, Flutter, and iOS
- Focused on component-level UI vectors rather than arbitrary geo-shapes
- Template catalog growing
3. Flubber (Bostock)
Best for: Morphing complex polygons, geographic maps, and D3.js data visualizations
- Platforms
- JavaScript / Node.js
- Price
- Free & Open Source (MIT)
- Output
- Interpolation function returning path strings
Created by Noah Veltman for D3.js workflows, Flubber specializes in morphing between arbitrary 2D shapes and polygons.
Pros and cons
- Brilliant triangulation algorithms prevent polygon folding
- Can morph one shape into multiple shapes (and vice versa)
- Completely free and open-source under MIT
- Can be computationally heavy during initial triangulation
- Does not handle animation timing itself (requires a tweening library)
4. KUTE.js (SVG Morph Component)
Best for: Projects seeking a free, open-source alternative to GSAP MorphSVG
- Platforms
- Web / JavaScript
- Price
- Free & Open Source (MIT)
- Output
- Interpolated SVG path coordinates
A modular JavaScript animation engine featuring dedicated plugins for SVG morphing and cubic bezier interpolation.
Pros and cons
- Free and open source without licensing fees
- Modular build architecture to reduce bundle weight
- Good performance for standard icon transformations
- Less robust than GSAP on shapes with wildly different vertex counts
- Smaller community ecosystem
5. Anime.js (Path Morphing)
Best for: General-purpose web animations that include simple SVG path morphing
- Platforms
- Web / JavaScript
- Price
- Free & Open Source (MIT)
- Output
- DOM and SVG attribute tweens
A lightweight JavaScript animation engine with built-in path interpolation for shapes with equal vertex counts.
Pros and cons
- Beautiful, intuitive JavaScript API
- Handles CSS, SVG, DOM, and JavaScript objects uniformly
- Zero external dependencies
- Requires shapes to have identical point counts to morph properly
- Cannot automatically subdivide complex mismatched paths
You have read the list. The one we make is one click away.
Free Community plan. One open .exode file that runs in React, Vue, Svelte, Angular, Solid, React Native, SwiftUI and Flutter.