head to head · open source
Vector vs amplify-js
Vector has 22,589 GitHub stars, 2,286 forks, 2,512 open issues and last shipped 2 days ago. amplify-js has 9,561 stars, 2,174 forks, 512 open issues and last shipped 2 days ago. Vector leads on adoption by 136% (22,589 vs 9,561 stars). Vector is written in Rust under MPL-2.0; amplify-js is written in TypeScript under Apache-2.0. Vector has attracted 10% as many forks as stars, amplify-js 23%. Vector 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
| Vector | amplify-js | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 9.6K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Rust | TypeScript |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 2.3K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Vector if
- You weight community size — 23K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Rust
- 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 Vector
Vector is an open source observability data pipeline written in Rust and licensed under MPL 2.0. It operates as an end to end system for collecting, transforming, and routing logs and metrics within the cloud native monitoring ecosystem. The project is maintained by Datadog's Community Open Source Engineering team, and its topics include agent, cloud native, data transformation, datadog, etl, events, forwarder, logs, metrics, and monitoring.
read the full Vector 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 Vector or amplify-js more popular?
Vector has 22,589 GitHub stars and amplify-js has 9,561. Vector has the larger community by that measure.
Are Vector and amplify-js free?
Both are open source. Vector is licensed under MPL-2.0 and amplify-js under Apache-2.0. Neither carries a licence fee.
What is the difference between Vector and amplify-js?
Vector is written in Rust 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, Vector or amplify-js?
Choose Vector if you want the larger community (22,589 stars) or its MPL-2.0 licence terms. Choose amplify-js if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.