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Comparison

MyDevTools vs Postman: offline desktop API client vs cloud platform

Postman is a cloud API platform for teams, with workspaces, monitors, governance and a CI runner. MyDevTools is a free, open-source desktop API client that runs fully offline: REST, GraphQL, WebSocket and gRPC, collections and environments, scripting, a collection runner, a local mock server and vault-backed secrets — alongside 80+ developer tools.

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Choose Postman when

Postman is strongest when API work is a shared, cloud-hosted team process.

  • Your team collaborates in shared cloud workspaces with comments and roles.
  • You run collections in CI with a command-line runner, or need monitors and hosted documentation.
  • You need API governance features, or Windows and Linux builds — MyDevTools ships macOS builds today.

Choose MyDevTools when

MyDevTools is better when you want the full client feature set on your own machine, with no account and nothing uploaded.

  • Test REST, GraphQL, WebSocket and native gRPC (server reflection or .proto, unary and streaming) from one client.
  • Use collections, saved examples, environments, response chaining, pre-request/test scripts (pm.* API), a runner with data files and JUnit export, and a local mock server.
  • Keep secrets in the encrypted local vault, store everything in an encrypted SQLCipher database, work in 27 UI languages — then format the JSON, decode the JWT or open the SQL client in the same app.

Verdict

Postman wins on cloud collaboration, CI and governance. MyDevTools wins on privacy, price and scope: every feature is free, nothing leaves your device, and the rest of your toolkit is one click away.

  • Best cloud team platform and CI runner: Postman.
  • Best free, offline, account-free API client: MyDevTools.
  • Best API client plus 80+ utility toolkit: MyDevTools.

Common comparison questions

Is MyDevTools a Postman replacement?

For individual and local API work, yes. It covers REST, GraphQL, WebSocket, gRPC, collections, environments, scripting, a runner and a mock server, and imports Postman v2.1 collections. It is not a replacement for the Postman cloud workspaces, CLI runner, monitors or governance.

What makes MyDevTools useful for API debugging?

Everything runs offline on your device with no account. Secrets come from the local encrypted vault, scripts run in a sandboxed worker, and the JSON formatter, JWT decoder, URL parser, timestamp converter and mock data generator sit next to the API client.