compare
gRPC UI vs Scalar
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | gRPC UI | Scalar |
|---|---|---|
| Language | JavaScript | TypeScript |
| Licence | MIT | MIT |
| Stars | 5.9k | 16k |
| Latest | v1.5.4 | release-2026-10-05-df37703 |
| Last push | 2026-09-14 | 2026-10-06 |
| Release cadence | about 102 days between releases | about 3 days between releases |
| Active contributors | 2 commit authors on the default branch in the last 90 days | 32+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Postman. Alternatives to Postman →
PartialgRPC UIA browser UI for calling gRPC methods only.
PartialScalarAn API client generated from an OpenAPI document.
gRPC UI
- v1.5.42026-09-02> [!NOTE]
- v1.5.32026-08-31> [!CAUTION]pre-release
- v1.5.22026-07-06bb4a1b1e79c24750d25401f2be013d4de90ba433 update go version in dockerfile (#435)
- v1.4.32025-03-11f37b6d5 Bump grpcurl dependency version to v1.9.3 (#372)
- v1.4.22024-11-29366ca4f Replace removed goreleaser archives.replacements configuration (#349)
Scalar
- release-2026-10-05-df377032026-10-05Release 2026-10-05
- release-2026-10-02-0962afc2026-10-02Release 2026-10-02
- release-2026-09-30-5d95c402026-09-30Release 2026-09-30
- release-2026-09-29-0e5c0882026-09-29Release 2026-09-29
- release-2026-09-25-85e8e222026-09-25Release 2026-09-25
gRPC UI
unsigned The latest release, v1.5.4, carries no signature GitHub could verify.
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Scalar
✓ signed The latest release, release-2026-10-05-df37703, carries a signature GitHub verified.
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