head to head · open source
lottie-ios vs mojs
lottie-ios has 26,884 GitHub stars, 3,840 forks, 44 open issues and last shipped 4 days ago. mojs has 18,779 stars, 888 forks, 37 open issues and last shipped 2 months ago. lottie-ios leads on adoption by 43% (26,884 vs 18,779 stars). lottie-ios is written in Swift under Apache-2.0; mojs is written in CoffeeScript under MIT. lottie-ios has attracted 14% as many forks as stars, mojs 5%. lottie-ios was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (animation), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| lottie-ios | mojs | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 19K |
| License | Apache-2.0 | MIT |
| Written in | Swift | CoffeeScript |
| Last push | 2026-09-19 | 2026-07-30 |
| Forks | ⑂ 3.8K | ⑂ 888 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick lottie-ios if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Swift
- You value the larger contributor base for long-term maintenance
pick mojs if
- You want the mojs feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches CoffeeScript
- You evaluated both and mojs fits your workflow better
About lottie-ios
Lottie for iOS is an Apache 2.0 Swift library that natively renders After Effects and bodymovin JSON vector animations in realtime on iOS, macOS, tvOS, and visionOS, and it is aimed at Apple platform developers who want to ship designer authored motion without rebuilding it by hand in code.
read the full lottie-ios overview →
About mojs
mojs is a JavaScript motion graphics library, published on the npm registry as @mojs/core , that gives web developers a declarative API and built in components for animating HTML, shapes, swirls, bursts and staggers on the web.
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Frequently asked questions
Is lottie-ios or mojs more popular?
lottie-ios has 26,884 GitHub stars and mojs has 18,779. lottie-ios has the larger community by that measure.
Are lottie-ios and mojs free?
Both are open source. lottie-ios is licensed under Apache-2.0 and mojs under MIT. Neither carries a licence fee.
What is the difference between lottie-ios and mojs?
lottie-ios is written in Swift and mojs in CoffeeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, lottie-ios or mojs?
Choose lottie-ios if you want the larger community (26,884 stars) or its Apache-2.0 licence terms. Choose mojs if its feature set, stack or MIT licence fits better. Both are self-hostable.