Best Postman alternatives (2026)
Last updated: September 2026
A good Postman alternative gives you a fast API client you can use without paying per seat, without handing your collections to someone else's cloud, and without learning a new file format. This page compares six of them, starting with Scalar's open-source client, and it tells you when staying on Postman is the better call.
This page is written by Scalar, so read it with that in mind. Every claim about Postman and the other tools links to the vendor's own pricing page, documentation, blog or repository, checked on September 26, 2026.
Why teams look for a Postman alternative
Postman is still the most widely used API platform, and most of the complaints below are about trade-offs, not quality. But 2026 changed the maths for a lot of small teams.
The free plan became a one-person plan. Postman's plans changed in March 2026. In Postman's own words, the Free plan "is limited to one user and can't create a team", and "to collaborate with others, you will need to upgrade to a paid plan." Before the change, a small team could share a workspace for free. Now two people sharing a collection means the Team plan at $19 per user per month, billed annually. For a team of eight, that is $1,824 a year for an API client.
Collections and environments need an account. Postman's offline Scratch Pad was removed from new downloads on May 15, 2023 and retired in the September 15, 2023 release. Its replacement, the lightweight API client, sends requests without signing in, but Postman's announcement is explicit that "environments and collections features require you to be signed in to a Postman account." Teams in regulated industries, or anyone who simply does not want API keys in a vendor's cloud, often stop here.
The client is closed source. Postman's open pieces are real, including the Newman collection runner (Apache-2.0), but the desktop and web client are not something you can read, audit or fork.
Consolidation. Postman acquired Fern on January 8, 2026, adding SDK generation and docs to the platform. For some teams that is a plus. Others prefer not to put their client, docs and SDKs behind one vendor's account model.
What is no longer a fair complaint: "Postman does not work with Git." Postman 12, launched in March 2026, stores collections, environments and specs as files in your repository through Native Git, using a YAML-based Collection 3.0 format. It is desktop-only, but if Git was your main reason to leave, look at it before you migrate.
Postman alternatives at a glance
| Tool | License | Account needed | Where your work lives | OpenAPI | Protocols today | Paid from |
|---|---|---|---|---|---|---|
| Scalar | MIT | No | On your machine; OpenAPI is the collection | Native format | HTTP (gRPC, GraphQL, WebSocket, SOAP coming soon) | Client free on every plan (pricing) |
| Bruno | MIT | No | Plain-text files in your repo | Import and sync | REST, GraphQL, gRPC, WebSocket | $6/user/month, annual |
| Insomnia | Apache-2.0 | Scratch Pad only without one | Local Vault, Git Sync or Kong cloud | Design and import | REST, GraphQL, WebSockets, SSE, gRPC | $12/user/month |
| Hoppscotch | MIT | To use workspaces | Hoppscotch cloud or self-hosted | Import | REST, GraphQL, WebSocket, SSE, Socket.IO, MQTT | $6/user/month, annual |
| Yaak | MIT | No | On your device; can mirror to files for Git | Import | REST, GraphQL, WebSockets, SSE, gRPC | $79/year, required for work use |
| Apidog | Closed source | For cloud team projects | Apidog cloud (Global or Europe), or on-premises | Design-first editor | HTTP, GraphQL, gRPC, WebSocket, SOAP, SSE | Per member |
| Postman (for reference) | Closed; Newman is Apache-2.0 | For collections | Postman cloud, or Git on desktop | Import | HTTP, GraphQL, gRPC, WebSocket, MQTT, MCP | $9/month Solo, $19/user/month Team |
The options, one by one
1. Scalar: an open-source client built on OpenAPI
Verdict: the best fit if your team already maintains an OpenAPI document and wants the client to use it directly, with no account and no per-seat bill.
The Scalar API Client is MIT licensed, offline-first, and runs as a desktop app for macOS, Windows and Linux or in the browser at client.scalar.com. It does not ask you to sign in. Your workspace stays on your machine.
The structural difference from Postman is the format. Postman's working artifact is a collection, and OpenAPI is something you import and convert. In Scalar, OpenAPI is the native format: import a document from a file or URL and every operation, security scheme, server and example becomes part of the collection. Point it at a document on disk and the client can watch it and keep requests aligned when the document changes. Collections export back to OpenAPI, so nothing is locked in.
Moving over from Postman is less work than usual, for two reasons. The client imports Postman Collections v2.0 and v2.1, converting requests, folders and basic auth. And pre-request scripts and post-response tests use the Postman-compatible pm API, running in the official Postman Sandbox runtime, so most of your pm.test() and pm.environment.set() code keeps working. Environments follow the same four variable scopes as Postman.
The same client is embedded in every Scalar API reference as the Test Request button, so the docs your users read and the client your team uses are driven by one document.
What Scalar does not do yet, stated plainly: gRPC, GraphQL, WebSocket, SOAP and SSE clients and cloud sync are all listed as "Coming Soon" on the pricing page. There are no shared cloud workspaces today. If you need those this quarter, pick another tool on this list.
Best for: OpenAPI-first teams, privacy-sensitive teams, and anyone who wants their client, docs and SDKs to come from one source.
2. Bruno: Git-native collections
Verdict: the most direct answer to "I want my collections in Git, with no cloud."
Bruno is an MIT-licensed desktop client whose README says it is "offline-only. There are no plans to add cloud-sync to Bruno, ever." Collections are plain-text files in your repository, so you branch, diff and review them like code. It supports REST, GraphQL, gRPC and WebSocket, and has a CLI for CI. Some team features are paid: the Git UI, private Git repositories and unlimited OpenAPI syncs start on Pro. More detail in Bruno alternatives.
Best for: teams whose collections are hand-written requests and who want them reviewed in pull requests.
3. Insomnia: the closest feature match
Verdict: the nearest like-for-like swap for a Postman user who needs many protocols.
Insomnia, maintained by Kong, is Apache-2.0 and covers REST, GraphQL, WebSockets, SSE and gRPC, with a design editor for OpenAPI, the Inso CLI and, since version 12, an MCP client. Kong says its cloud collaboration is free for unlimited users, which directly targets teams hit by Postman's March change. Without an account you get the local Scratch Pad; Local Vault and Git Sync need a free account. See Insomnia alternatives for its own history on this.
Best for: teams that want free cloud collaboration and broad protocol coverage.
4. Hoppscotch: browser-first and self-hostable
Verdict: the lightest way to get a shared client, especially if you want to self-host it.
Hoppscotch is MIT licensed and runs in the browser at hoppscotch.io, with a desktop app and a CLI. It covers REST, GraphQL and realtime protocols including WebSocket, SSE, Socket.IO and MQTT. The free cloud plan includes unlimited workspaces and collections, and the Organization plan is $6 per user per month billed annually. You can self-host the Community Edition. See Hoppscotch alternatives.
Best for: teams that live in the browser or need an on-premises client they run themselves.
5. Yaak: a local-first client from Insomnia's original author
Verdict: a polished, fast desktop client if you are fine paying a small licence for work use.
Yaak is MIT licensed and built by Gregory Schier, who previously built Insomnia. It supports REST, GraphQL, WebSockets, SSE and gRPC, keeps data on your device, imports OpenAPI and Postman collections, and can mirror a workspace to your filesystem for Git. It is free for personal use, but "a license is only required when using Yaak at work": $79 per year for individuals or $149 per user per year for businesses.
Best for: individual developers who want a native-feeling client and do not need OpenAPI at the centre.
6. Apidog: an all-in-one platform
Verdict: a Postman-shaped platform with stronger API design tooling, if you want everything in one closed product.
Apidog combines design, debugging, testing, mocking and documentation in one app, with a visual OpenAPI editor and test scenarios with branching and loops. Team projects synchronize with Apidog's cloud, with Global and Europe data residency, and billing is per team member. See Apidog alternatives.
Best for: teams replacing Postman and a separate design tool at the same time.
When to stay on Postman
Leaving is not always right, and we would rather you hear that from us.
- You need non-HTTP protocols today. Postman handles gRPC, GraphQL, WebSocket and MQTT in one collection. Scalar does not yet.
- You rely on monitors, cloud mocks and the integration directory. None of the open-source clients here replace Postman's scheduled monitors one-for-one.
- Your team works in shared cloud workspaces and is happy paying for it. Postman's collaboration is mature. Scalar has no cloud sync yet.
- Your API is on the Postman Public API Network and your users expect to find it there.
- Git was your only complaint. Try Native Git in Postman 12 first.
Moving from Postman to Scalar
Export your collections
In Postman, export each collection as Collection v2.1 JSON. Export environments separately.
Import into Scalar
Download the app or open client.scalar.com, press ⌘ K (Control K on Windows and Linux) and choose Import from OpenAPI/Swagger/Postman/cURL. If you have an OpenAPI document for the same API, import that instead: you get schemas and examples, not just saved requests.
Recreate environments and check scripts
Add your variables under Environments. Run your collection and check that pm scripts behave as expected.
What does not come across: monitors, cloud mocks and workspace history. For mocking, the MIT-licensed Scalar Mock Server serves responses from the same OpenAPI document.
Frequently asked questions
Is Postman still free in 2026?
Yes, for one person. Since March 2026, Postman's Free plan is limited to one user and cannot create a team, according to Postman's plan documentation. Collaboration needs a paid plan: Solo is $9 per month and Team is $19 per user per month, billed annually, as listed on the pricing page on September 26, 2026.
Can I use Postman without an account?
Partly. The lightweight API client sends HTTP, GraphQL, gRPC and WebSocket requests without signing in, but Postman says collections and environments require a signed-in account. Scalar, Bruno and Yaak let you save collections with no account at all.
What is the best free Postman alternative?
For OpenAPI-first work, Scalar's client is MIT licensed and free on every plan. For Git-stored collections, Bruno's open-source edition is free. For free cloud collaboration, Kong says Insomnia Cloud is free for unlimited users.
Will my Postman test scripts work in Scalar?
Most will. Scalar's scripts use the Postman-compatible pm API and run in the Postman Sandbox runtime, so pm.test(), pm.expect(), pm.response and pm.environment work. Check scripts that depend on Postman-only cloud features.
Does Scalar's API client support gRPC or GraphQL?
Not yet. The client is HTTP-first today; gRPC, GraphQL, WebSocket, SOAP and SSE are listed as coming soon on the pricing page.
Who owns Postman's SDK and docs tools now?
Postman acquired Fern, an SDK and docs generator, on January 8, 2026. Compare it with Scalar on the Fern alternatives page.
Related
- Learn: What is an API client? · Best open-source API clients (2026)
- Docs: Import into the API Client
- Product: Scalar vs Postman — the full head-to-head, including docs and SDKs
This page is based on the public pricing pages, documentation, blogs and GitHub repositories of Postman, Bruno, Insomnia, Hoppscotch, Yaak and Apidog, as checked on September 26, 2026. Prices exclude tax and may change. If something here is wrong or out of date, please open an issue and we will correct it.
