head to head · open source
Screenity vs plasmo
Screenity has 18,703 GitHub stars, 1,521 forks, 8 open issues and last shipped 2 days ago. plasmo has 13,151 stars, 460 forks, 371 open issues and last shipped yesterday. Screenity leads on adoption by 42% (18,703 vs 13,151 stars). Screenity is written in JavaScript under GPL-3.0; plasmo is written in TypeScript under MIT. Screenity has attracted 8% as many forks as stars, plasmo 3%. plasmo was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chrome-extension), 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.
← all 8884 open source comparisons
Side by side
| Screenity | plasmo | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 13K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-16 | 2026-09-17 |
| Forks | ⑂ 1.5K | ⑂ 460 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Screenity if
- You weight community size — 19K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick plasmo if
- You want the plasmo feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and plasmo fits your workflow better
About Screenity
Screenity is a JavaScript Chrome extension under the GPL 3.0 license that records the screen and supports annotation in the browser. It lives in the Chrome extension ecosystem and is distributed through the Chrome Web Store, while its source code is available on GitHub.
read the full Screenity overview →
About plasmo
Plasmo is an MIT licensed, TypeScript based browser extension framework that packages the build toolchain, manifest generation, and runtime APIs for Chrome, Edge, and Firefox add ons into a single SDK for React and TypeScript developers.
read the full plasmo overview →
More in Productivity & Utilities
Related comparisons
More Browsers & Extensions projects
Compare either of these against the rest of the Browsers & Extensions field.
Frequently asked questions
Is Screenity or plasmo more popular?
Screenity has 18,703 GitHub stars and plasmo has 13,151. Screenity has the larger community by that measure.
Are Screenity and plasmo free?
Both are open source. Screenity is licensed under GPL-3.0 and plasmo under MIT. Neither carries a licence fee.
What is the difference between Screenity and plasmo?
Screenity is written in JavaScript and plasmo in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Screenity or plasmo?
Choose Screenity if you want the larger community (18,703 stars) or its GPL-3.0 licence terms. Choose plasmo if its feature set, stack or MIT licence fits better. Both are self-hostable.