compare
ATAC vs Mockoon
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | ATAC | Mockoon |
|---|---|---|
| Language | Rust | TypeScript |
| Licence | MIT | MIT |
| Stars | 3.7k | 8.4k |
| Latest | v0.23.1 | v9.9.0 |
| Last push | 2026-09-03 | 2026-10-05 |
| Release cadence | about 75 days between releases | about 45 days between releases |
| Active contributors | 2 commit authors on the default branch in the last 90 days | 1 commit author on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Postman. Alternatives to Postman →
PartialATACA terminal UI client that imports Postman collections, without an account.
PartialMockoonMock APIs only, run locally or in CI without an account.
ATAC
ATAC
unsigned The latest release, v0.23.1, carries no signature GitHub could verify.
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Mockoon
unsigned The latest release, v9.9.0, carries no signature GitHub could verify.
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