Postman alternatives
12 other tools do this job. Which one is right depends on why Postman is not working for you — so start from the reason, not the list.
Why teams leave Postman
- Cloud-first sync raised real concerns for teams handling sensitive API credentials; the offline story has been repeatedly reduced.
- Collections stored in the vendor cloud rather than your repo make code review and branching awkward.
- The desktop app has grown heavy, and per-seat costs add up on large teams.
Worth saying: Postman is genuinely strong at this — near-universal adoption — collections are a lingua franca between teams and vendors. If that is the part you rely on, switching may cost more than it saves.
If cost is the problem
Cheaper than Postman at the entry point, or free outright.
Insomnia
API Testing
Clean, fast API client with strong GraphQL and gRPC support.
Apidog
API Testing
Design, mock, test and document APIs in one integrated workspace.
REST Assured
API Testing
Fluent Java DSL for testing REST services inside your existing JVM test suite.
SuperTest
API Testing
In-process HTTP assertions for Node.js apps, without binding a port.
If you need open source
Postman is proprietary; these are not.
Insomnia
API Testing
Clean, fast API client with strong GraphQL and gRPC support.
Bruno
API Testing
Git-native API client that stores collections as plain files in your repo.
Hoppscotch
API Testing
Lightweight browser-based API client you can self-host in a container.
Karate
API Testing
API testing, mocks, performance and UI automation in one Gherkin-based DSL.
If it has to run on your own infrastructure
Postman is cloud-only; these can be self-hosted.
Insomnia
API Testing
Clean, fast API client with strong GraphQL and gRPC support.
Bruno
API Testing
Git-native API client that stores collections as plain files in your repo.
Hoppscotch
API Testing
Lightweight browser-based API client you can self-host in a container.
Karate
API Testing
API testing, mocks, performance and UI automation in one Gherkin-based DSL.
If nobody on the team writes code
Postman expects code; these do not.
Everything else in API Testing
Ranked by how widely adopted they are. Compare any two to see the differences that matter.
API testing, mocks, performance and UI automation in one Gherkin-based DSL.
Fluent Java DSL for testing REST services inside your existing JVM test suite.
The long-standing tool for SOAP, JMS and enterprise protocol testing.
Property-based fuzzing that generates API tests straight from your OpenAPI schema.
Turn OpenAPI and AsyncAPI specs into executable contracts and smart mocks.
Open-source API testing configured entirely in YAML, built for pipelines.
Not sure which of these fits?
Answer six questions about your stack, team and budget and we will narrow it down for you.
Run the stack finder