head to head · open source
Harness vs wxt
Harness has 38,378 GitHub stars, 3,397 forks, 106 open issues and last shipped 2 days ago. wxt has 10,519 stars, 564 forks, 214 open issues and last shipped 2 days ago. Harness leads on adoption by 265% (38,378 vs 10,519 stars). Harness is written in Go under Apache-2.0; wxt is written in TypeScript under MIT. Harness has attracted 9% as many forks as stars, wxt 5%. Harness was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Harness | wxt | |
|---|---|---|
| GitHub stars | ★ 38K | ★ 11K |
| License | Apache-2.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-09-16 | 2026-09-16 |
| Forks | ⑂ 3.4K | ⑂ 564 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Harness if
- You weight community size — 38K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick wxt if
- You want the wxt feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and wxt fits your workflow better
About Harness
Harness Open Source is an Apache 2.0, Go based developer platform that combines Git source control management, CI/CD pipelines, Gitspaces hosted development environments and artifact registries into one self hostable system for engineering teams that want end to end software delivery without stitching four separate products together.
read the full Harness overview →
About wxt
WXT is a next generation framework for developing web extensions, written in TypeScript and published under the MIT license. It lives in the JavaScript and TypeScript ecosystem, distributed through npm as the wxt package, and its own description frames it as "like Nuxt, but for Web Extensions" — that is, a batteries included toolkit that turns extension development into a structured, conventional project layout rather than a pile of loose manifest files and hand wired build scripts. The project has been in development for roughly three years, carries about 10,500 stars and 564 forks on GitHub, and is maintained b…
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Frequently asked questions
Is Harness or wxt more popular?
Harness has 38,378 GitHub stars and wxt has 10,519. Harness has the larger community by that measure.
Are Harness and wxt free?
Both are open source. Harness is licensed under Apache-2.0 and wxt under MIT. Neither carries a licence fee.
What is the difference between Harness and wxt?
Harness is written in Go and wxt 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, Harness or wxt?
Choose Harness if you want the larger community (38,378 stars) or its Apache-2.0 licence terms. Choose wxt if its feature set, stack or MIT licence fits better. Both are self-hostable.