Two API clients, seven years apart. Insomnia arrived in 2016 as an open-source desktop client for REST, GraphQL and gRPC, local-first by default with optional paid team sync. Bruno arrived in 2023 with a narrower argument: your collections should be plain files in your repo, reviewed through normal Git workflows like any other code, with no account and no sign-in at all. The functional overlap is large. Both send requests, both script in JavaScript against a familiar request and response model, both slot into CI. The real split is where a collection lives. Insomnia offers a cloud option when you want one; Bruno deliberately does not have one, so sharing means giving someone repo access.
Pick Bruno if your team already reviews everything through pull requests and you want API requests to travel the same path. Plain files diff cleanly and nothing needs to leave the machine. Pick Insomnia if you want the more established client: native gRPC and GraphQL without plugin gymnastics, and a paid tier at $12 per user per month for team sync once file-based sharing stops being enough. Two caveats worth knowing before you commit. Insomnia has been through ownership changes that unsettled its community, and Bruno is young enough that its docs are still patchy in places and its integration list is shorter than either incumbent. Neither tool monitors anything, so scheduled checks against production stay a separate problem.
Open-source REST, GraphQL, and gRPC client for designing and testing APIs
Pricing: Free Hobby plan; Pro $12/user/mo, Enterprise $45/user/mo
Founded: 2016
Best for: Developers, API Engineers, QA Engineers
Git-friendly, offline-first API client that stores collections as plain files
Pricing: Free open-source desktop app; paid Enterprise plans
Founded: 2023
Best for: Developers, Open-Source Teams, Privacy-Conscious Engineers
2 of 18 capabilities separate these two. Those come first.
| Feature | Insomnia | Bruno |
|---|---|---|
| Where they differ (2) | ||
| AI-Powered | Insomnia: yes | Bruno: no |
| On-Premise / Self-Host | Insomnia: no | Bruno: yes |
| Both tools have (4) | ||
| API & Browser Testing | Insomnia: yes | Bruno: yes |
| CI/CD Integration | Insomnia: yes | Bruno: yes |
| Open Source | Insomnia: yes | Bruno: yes |
| Free Tier | Insomnia: yes | Bruno: yes |
| Neither tool has (12) | ||
| Synthetic Monitoring | Insomnia: no | Bruno: no |
| Real User Monitoring | Insomnia: no | Bruno: no |
| Self-Healing Tests | Insomnia: no | Bruno: no |
| Uptime Monitoring | Insomnia: no | Bruno: no |
| Alerting | Insomnia: no | Bruno: no |
| Slack Integration | Insomnia: no | Bruno: no |
| Multi-Location Checks | Insomnia: no | Bruno: no |
| SSL Monitoring | Insomnia: no | Bruno: no |
| Status Page | Insomnia: no | Bruno: no |
| API Access | Insomnia: no | Bruno: no |
| Dashboards | Insomnia: no | Bruno: no |
| Incident Management | Insomnia: no | Bruno: no |
Pros
Cons
Pros
Cons
Insomnia is open-source rest, graphql, and grpc client for designing and testing apis, while Bruno is git-friendly, offline-first api client that stores collections as plain files. Insomnia adds AI-Powered on top of the shared feature set. Bruno brings On-Premise / Self-Host that Insomnia does not.
Insomnia pricing: Free Hobby plan; Pro $12/user/mo, Enterprise $45/user/mo. Bruno pricing: Free open-source desktop app; paid Enterprise plans. Evaluate against your check volume and team size; entry pricing rarely reflects total cost at scale.
Insomnia is designed with Developers, API Engineers, and QA Engineers in mind, whereas Bruno targets Developers, Open-Source Teams, and Privacy-Conscious Engineers. If your team matches the former profile, Insomnia is usually the closer fit.
No. It does a different job. API clients are built for developing and debugging requests. ObserveOne runs those same requests against production on a schedule, with assertions, alerting, and incident tracking on top.
API clients are built for developing and debugging requests. ObserveOne runs those same requests against production on a schedule, with assertions, alerting, and incident tracking on top. The free tier covers enough to try it on one critical journey.
Each tool has its own alternatives page too, not just this matchup.