Bruno vs Insomnia
Both are alternatives to Postman. Here's how they stack up — verified facts, no spin.
Also searched as Insomnia vs Bruno — same comparison, one verdict.
Both are api development tools with the same broad shape, but Bruno scores 95 against Insomnia's 82 on data ownership and exit cost — the gap is in how easily you could leave.
Bruno
TOP PICKA fast, git-native API client that stores collections as plain files.
Bruno is an open-source desktop API client that keeps every request as a plain-text .bru file on your filesystem, so collections version-control in git right alongside the code they test. It runs entirely offline with no account required, imports existing Postman collections, and is notably lightweight and quick to start. The free core is fully featured for individuals and small teams; advanced Git, SSO, and org-scale management sit on paid Pro and Ultimate tiers.
Insomnia
A mature, multi-protocol API client with a fully local storage mode.
Insomnia is an open-source, cross-platform API client maintained by Kong, covering REST, GraphQL, gRPC, WebSocket, and SSE. Its Local Vault and Scratch Pad options keep collections 100% on your device, and Git Sync stores them in a repository you control, while optional Cloud Sync adds end-to-end-encrypted team collaboration. It is well-established and feature-rich, though most capabilities beyond the local Scratch Pad require a (free) account.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Bruno | Insomnia | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 95 | 82 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | MIT | Apache-2.0 |
| Pricing | Free and open-source core; optional Pro ($6/user/mo) and Ultimate ($11/user/mo) for advanced Git, SSO, and support | Free with a generous plan; paid tiers for unlimited collaboration, Git Sync, and org/SSO features |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 600 MB as an Electron app | 700 MB as an Electron app |
| Realistic running costWhat the box costs each month if you run it yourself. | $0 — it runs on the machine you already own | $0 — it runs on the machine you already own |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 10 minutes | 10 minutes |
| Ongoing maintenanceThe part nobody budgets for. | None beyond updating the app. | None beyond updates, but check each release for account requirements. |
Bruno is Macrostack's recommended Postman alternative, so it's our pick here.
Weighing both against staying on Postman? Is Postman free? What it actually costs →
Bruno
Strengths
- +Fully open-source (MIT)
- +Collections are plain .bru files you version-control in git
- +Works offline with no account
- +Lightweight and fast to start
- +Imports Postman collections
Trade-offs
- −Advanced Git, SSO, and org features require paid Pro/Ultimate tiers
- −Younger ecosystem than Postman
- −Postman sandbox scripts may need manual rewriting on import
- −No built-in cloud sync for non-technical teammates
Insomnia
Strengths
- +Open-source (Apache-2.0), backed by Kong
- +Local Vault and Scratch Pad allow fully local storage
- +Git Sync keeps collections in your own repository
- +Mature and multi-protocol (REST, GraphQL, gRPC, WebSocket)
Trade-offs
- −Most features beyond the local Scratch Pad require a free account
- −The product is steered toward Kong's cloud
- −Premium collaboration and Git Sync sit on paid plans
- −Some users prefer a fully no-account tool
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Bruno
if a lower exit cost matters more to you than any single feature, and fully open-source (MIT).
Choose Insomnia
if open-source (Apache-2.0), backed by Kong.
Neither, yet
if both carry a real cost you should weigh first — advanced Git, SSO, and org features require paid Pro/Ultimate tiers, and most features beyond the local Scratch Pad require a free account. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Bruno vs Insomnia — common questions
Is Bruno a better fit than Insomnia for api development?
It depends on what you are optimising for, and the honest split is this: Bruno scores 95 to Insomnia's 82 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Insomnia earns its place on a different axis — open-source (Apache-2.0), backed by Kong. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Bruno keeps its data local or in open formats, so leaving is an export rather than a negotiation. Insomnia is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Bruno or Insomnia?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Bruno and Insomnia both alternatives to Postman?
Yes — both appear in our Postman comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Postman and now choosing between the two replacements, which is a narrower and much easier question.
More Postman head-to-heads
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Facts verified 2026-07-05. Licenses and pricing change — spotted something out of date? That's a correction we want.