head to head · open source
Apache SkyWalking vs amplify-js
Apache SkyWalking has 24,958 GitHub stars, 6,633 forks, 41 open issues and last shipped 3 days ago. amplify-js has 9,561 stars, 2,174 forks, 512 open issues and last shipped 2 days ago. Apache SkyWalking leads on adoption by 161% (24,958 vs 9,561 stars). Apache SkyWalking is written in Java under Apache-2.0; amplify-js is written in TypeScript under Apache-2.0. Apache SkyWalking has attracted 27% as many forks as stars, amplify-js 23%. amplify-js was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (metrics), 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
| Apache SkyWalking | amplify-js | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 9.6K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | TypeScript |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 6.6K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Apache SkyWalking if
- You weight community size — 25K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick amplify-js if
- You want the amplify-js feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and amplify-js fits your workflow better
About Apache SkyWalking
Apache SkyWalking is an open source application performance monitoring (APM) system for distributed systems in cloud native architectures, built for teams that run microservices across Kubernetes and container based environments.
read the full Apache SkyWalking overview →
About amplify-js
AWS Amplify is a declarative JavaScript library for frontend and mobile developers who build cloud enabled applications. It lives in the JavaScript and TypeScript ecosystem, published on npm as the aws amplify package under the Apache 2.0 license, and it pairs with any JavaScript based frontend workflow as well as React Native for mobile developers. The project has been developed for roughly nine years and is maintained by AWS, with its documentation hosted at docs.amplify.aws.
read the full amplify-js overview →
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Frequently asked questions
Is Apache SkyWalking or amplify-js more popular?
Apache SkyWalking has 24,958 GitHub stars and amplify-js has 9,561. Apache SkyWalking has the larger community by that measure.
Are Apache SkyWalking and amplify-js free?
Both are open source. Apache SkyWalking is licensed under Apache-2.0 and amplify-js under Apache-2.0. Neither carries a licence fee.
What is the difference between Apache SkyWalking and amplify-js?
Apache SkyWalking is written in Java and amplify-js 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, Apache SkyWalking or amplify-js?
Choose Apache SkyWalking if you want the larger community (24,958 stars) or its Apache-2.0 licence terms. Choose amplify-js if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.