Mo.js

● Identity checked

Developer Tools · Vendor site 2026-10-04

The official site documents tutorials, API references, and tooling for motion graphics that stay sharp on retina displays.

Updated 2026-10-04View sources

Official website

Category: Developer Tools
Free access: MIT-licensed open source project with documentation and downloads on the official site.
API access: Not confirmed

Is Mo.js right for you?

A good fit for

Front-end developers and designers who want declarative, modular animation primitives for the web.

Before you choose

it does not publish hosted SaaS pricing or cloud APIs.

Web motion library

mo.js targets developers who need lightweight, modular animation tooling for modern browsers, with tutorials and API docs published on the official GitHub Pages site.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
Animation focus	Homepage highlights fast, retina-ready motion effects with simple declarative APIs.	Facts sourced	2026-10-04
Modular builds	Site copy promotes custom builds to avoid large file-size overhead for each project.	Facts sourced	2026-10-04
Quality bar	Marketing notes 1580+ unit tests and CI backing the library.	Facts sourced	2026-10-04
License	Footer states MIT licensing for the project.	Facts sourced	2026-10-04

Understand the total cost

Mo.js pricing & plans

Free

MIT-licensed open source project with documentation and downloads on the official site.

Access: MIT-licensed open source project with documentation and downloads on the official site.

Explore pricing & history

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The practical questions

Frequently asked questions

What is Mo.js used for?

The official site documents tutorials, API references, and tooling for motion graphics that stay sharp on retina displays.

Does Mo.js have a free plan?

MIT-licensed open source project with documentation and downloads on the official site.. This record lists ongoing free access; check the plan limits before starting.

How much does Mo.js cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Mo.js through an API?

Not confirmed. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

it does not publish hosted SaaS pricing or cloud APIs.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Identity and profile

Reviewed vendor source

Read original source ↗

2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.