Postman vs Insomnia vs Bruno: Which API Client Wins for Developer Teams in 2025
Three years ago, picking an API client was barely a decision. Postman dominated, Insomnia was the sleek alternative, and most teams never thought about it again. Then in 2023, Insomnia’s parent company Kong moved core collaboration features behind a paywall, and a smaller project called Bruno appeared with a blunt promise: your collections live as plain text files in your Git repo, not in someone else’s cloud.
That promise resonated. Bruno crossed 30,000 GitHub stars in early 2025 and keeps climbing. Meanwhile, Postman’s 2023 layoffs and its own pricing adjustments pushed some teams to re-evaluate. So which client actually wins for a developer team in 2025? The honest answer depends on what your team values, but the trade-offs are clearer now than they’ve ever been.
The Three Contenders at a Glance
| Postman | Insomnia | Bruno | |
|---|---|---|---|
| License | Proprietary | Proprietary (free tier) | Open source (MIT) |
| Storage | Cloud-first | Cloud or local | Local files only |
| Git-friendly | Partial (export/import) | Partial | Native |
| Collaboration | Best-in-class | Paid tiers | Git-based |
| Price (team) | ~$14–19/user/mo | ~$12/user/mo | Free (paid team plan ~$6/user/mo) |
Postman is the incumbent with the deepest feature set. Insomnia is the polished middle ground. Bruno is the challenger betting that developers want their API collections treated like code.
Postman: Still the Feature Leader
Postman’s advantage is breadth. Beyond sending requests, it offers mock servers, automated test suites, API documentation generation, monitoring, and a public API network. For teams that need a single platform where QA, backend, and frontend engineers all operate, that integration is genuinely hard to replicate.
The 2024 launch of Postman’s AI Agent Mode and its continued investment in the Postman API Network show the company is not standing still. If your organization already runs on Postman and the per-seat cost is absorbed by an enterprise agreement, switching costs likely outweigh the benefits of moving.
The friction points are well documented. Collections live in Postman’s cloud by default, which means your API definitions sit on a third-party server. Git integration exists but works through export and sync rather than treating collections as first-class source files. Merge conflicts on shared collections are a recurring complaint. And the free tier has tightened over time, with collaboration features increasingly gated behind paid plans.
Best for: Large organizations that want an all-in-one API platform and can justify the per-seat cost.
Insomnia: The Polished Middle Ground
Insomnia has long been the choice of developers who found Postman heavy. Its interface is cleaner, it launches faster, and its plugin ecosystem lets you extend request handling in JavaScript. It supports REST, GraphQL, gRPC, and WebSockets out of the box.
The 2023 pricing change is the defining event in Insomnia’s recent history. Kong moved features like Git sync, unlimited collaboration, and some plugins into paid tiers, prompting a visible backlash. Some of that was walked back, but the trust damage lingered. Insomnia still offers a capable free tier for individual developers and small teams, and the paid plan sits around $12 per user per month.
Where Insomnia shines is the solo developer or small team that wants a fast, good-looking client without a lot of ceremony. Where it struggles is the same place Postman does: collections aren’t natively Git-native, so teams that want version control as the source of truth end up working around the tool.
Best for: Individual developers and small teams that prioritize speed and a clean UI over deep collaboration tooling.
Bruno: The Git-Native Challenger
Bruno’s core idea is simple and, for many teams, obviously correct: an API collection is just a folder of .bru text files. You commit it. You branch it. You review it in a pull request. There is no cloud account required, no sync service, no vendor holding your API definitions.
This matters more than it sounds. When a collection is plain text, code review catches breaking API changes before they merge. Onboarding a new engineer means cloning a repo, not requesting access to a SaaS workspace. And because Bruno is MIT-licensed and offline-first, there’s no risk of a pricing change locking your team out of its own test suite.
The trade-offs are real. Bruno’s collaboration features are younger. Its ecosystem of plugins and integrations is smaller than Postman’s. Features like mock servers and monitoring, which Postman bundles, either don’t exist or require pairing Bruno with other tools. And while the core app is free, Bruno offers a paid team plan (around $6 per user per month) for those who want hosted collaboration on top of the open-source client.
For teams already comfortable with a Git-centric workflow, those trade-offs often feel like a fair exchange. For teams that want a managed platform with support contracts, they don’t.
Best for: Engineering teams that treat API collections as code and want version control, not a vendor, as the source of truth.
How to Actually Choose
The decision usually comes down to three questions.
Where should your API definitions live? If the answer is “in our Git repos, reviewed like any other code,” Bruno is the natural fit. If the answer is “in a shared cloud workspace anyone can access,” Postman or Insomnia make more sense.
How much collaboration tooling do you need? Postman’s collaboration features are the most mature. If your team spans multiple roles and needs shared workspaces, comments, and role-based access, that maturity has value. If your team is engineers who already collaborate through Git, you may be paying for features you’d never use.
What’s your tolerance for vendor dependency? Postman and Insomnia are proprietary products with pricing that has changed before. Bruno’s MIT license means the client can’t be taken away. For some teams that’s a philosophical preference; for others it’s a genuine risk-management decision.
A practical pattern emerging in 2025: teams use Bruno for day-to-day development and version-controlled collections, and keep a Postman workspace for stakeholder-facing documentation and demos. The tools aren’t mutually exclusive, and treating them as an either/or decision may be the real mistake.
The Bottom Line
There’s no universal winner, and anyone claiming otherwise is probably selling something. Postman remains the most complete platform and the safest pick for large, cross-functional organizations that value integration over independence. Insomnia is a strong, fast client for individuals and small teams willing to accept a proprietary tool with a free tier. Bruno wins on a specific but increasingly common axis: teams that want their API collections versioned, reviewed, and owned by them, not rented from a vendor.
If your team lives in Git and resents paying per seat for the privilege of syncing text files, Bruno is worth a serious look in 2025. If you need a platform that does everything and you have the budget, Postman still earns its price. The gap between them is narrowing, and that competition is good news for everyone who has to ship APIs.