What is Chapar?
Native desktop API client for REST, gRPC, GraphQL and WebSocket that keeps all data local.
Who is Chapar best for?
Chapar is best for backend developers who test REST, gRPC, GraphQL and WebSocket APIs and want a fast native app with local data.
gRPC services
It calls gRPC with server reflection or proto files, alongside REST, GraphQL and WebSocket requests in one app.
Private API work
Data stays on the device, secrets are encrypted with the operating system keychain and the app sends no telemetry.
Test suites in CI
Requests chain into test cases with assertions and captures, and chapar-cli runs them in a CI pipeline.
Inspecting app traffic
A built-in proxy shows the HTTPS traffic of other apps or phones and turns a captured call into a request, cURL command or HAR file.
How much does Chapar cost?
Chapar is free and open source under the BSD 3-Clause licence, with no paid plans or hosted service.
- REST, gRPC, GraphQL and WebSocket
- Python pre and post-request scripts
- BSD 3-Clause licence
Chapar has no paid plans or hosted service; the project accepts sponsorships. Full pricing on github.com. We checked these prices on .
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Is Chapar open source?
Yes. Chapar's code is public under the BSD 3-Clause licence, so you can run it on your own server.
On GitHub
732stars
+18 (+2.5%) in the last 30 days
- Last commit
- 4 Nov
- Repository age
- 2 years
- Latest release
- 4 Nov
- Licence
- BSD 3-Clause
- Self-hosted
- Yes
- Repository
- chapar-rest/chapar
What are the best Chapar alternatives?
Chapar is an open source alternative to Postman. Insomnia, Bruno, Hoppscotch and 2 more do the same job and are open source too.
APIs developed, tested and managed on an AI-native platform.
Desktop app to send, test, mock and document API requests, with local or Git storage.
API client that saves requests as plain-text files in your Git repo and works fully offline.
API client for REST, GraphQL, WebSocket and more that runs in the browser or on desktop.
Interactive API reference docs and an offline API client, both built from your OpenAPI file.
Offline API client that keeps requests, tests and docs together in Markdown files in Git.
Questions about Chapar
What is Chapar?
Native desktop API client for REST, gRPC, GraphQL and WebSocket that keeps all data local.
Who is Chapar for?
Chapar is best for backend developers who test REST, gRPC, GraphQL and WebSocket APIs and want a fast native app with local data.
Is Chapar free?
Yes. Chapar has a free Free download plan: REST, gRPC, GraphQL and WebSocket.
Is Chapar open source?
Yes. Chapar's code is public under the BSD 3-Clause licence, so you can run it on your own server.
What are the best Chapar alternatives?
The closest alternatives on Recaply are Postman, Insomnia, Bruno, Hoppscotch, Scalar and Voiden.
Where can I try Chapar?
On its official website, chapar.rest.
Can Chapar import Postman collections?
Yes. Chapar imports Postman collections, OpenAPI files, proto files and curl commands, and it saves requests and environments as YAML files you can keep in Git.







