compare
Bun vs Jest
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Bun | Jest |
|---|---|---|
| Language | Rust | TypeScript |
| Licence | Other | MIT |
| Stars | 96k | 46k |
| Latest | bun-v1.4.2 | v30.5.2 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 19 days between releases | about 11 days between releases |
| Active contributors | 8+ commit authors on the default branch in the last 90 days | 20 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Bun replaces Jest. Alternatives to Jest →
Partialbun test runs Jest-style tests with most of its matchers.
Bun
- bun-v1.4.22026-09-05Bun v1.4.2
- bun-v1.4.12026-09-04Bun v1.4.1
- bun-v1.4.02026-08-20Bun v1.4
- bun-v1.3.142026-05-13Bun v1.3.14
- bun-v1.3.132026-04-20Bun v1.3.13
Jest
- v30.5.22026-09-18[@jest/transform] Strip TypeScript types with Node when no transformer claims a .ts, .mts or .cts file (#16421)
- v30.5.12026-09-01[jest-config] Don't warn about global-only options in the config that supplies the global config - the root config a pr…
- v30.5.02026-08-28On a personal note: King Harald V of Norway passed away this morning. He ascended the throne 35 years ago, two months b…
- v30.4.22026-05-09[jest-runtime] Fix named imports from CJS modules whose module.exports is a function with own-property exports (#16150)
- v30.4.12026-05-08[jest-config, jest-core, jest-runner, jest-schemas, jest-types] Allow custom runner configuration options via tuple for…
Bun
unsigned The latest release, bun-v1.4.2, carries no signature GitHub could verify.
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Jest
unsigned The latest release, v30.5.2, carries no signature GitHub could verify.
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