compare
Fission vs Apache OpenWhisk
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Fission | Apache OpenWhisk |
|---|---|---|
| Language | Go | Scala |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 8.9k | 6.8k |
| Latest | v1.27.0 | 2.0.0 |
| Last push | 2026-10-06 | 2026-09-08 |
| Release cadence | about 19 days between releases | about 992 days between releases |
| Active contributors | 5 commit authors on the default branch in the last 90 days | 2 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace AWS Lambda. Alternatives to AWS Lambda →
Full replacementFissionFunctions from source in several languages on Kubernetes, triggered by HTTP, timers and queues.
Full replacementApache OpenWhiskEvent-driven functions in many languages, with triggers, rules and sequences.
Fission
Apache OpenWhisk
- 2.0.02024-04-07v2.0.0
- 1.0.02020-11-10Improvements to parameter encryption to support per-namespace keys. (#4855, @rabbah)
- 0.9.0-incubating2018-10-31
Fission
✓ signed The latest release, v1.27.0, carries a signature GitHub verified.
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Apache OpenWhisk
✓ signed The latest release, 2.0.0, carries a signature GitHub verified.
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