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httpYac

An open-source runner for .http files, as a VS Code extension and a command-line tool.

Open sourceAPI clients
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About httpYac

httpYac lets you write API requests in plain .http or .rest files, the same simple format used by the VS Code REST Client and JetBrains HTTP Client, and run them from VS Code or the command line. On top of plain HTTP it supports GraphQL, gRPC, WebSocket, Server-Sent Events, MQTT and AMQP, with environments, variables, request chaining, JavaScript scripting and hooks, assertions for tests, and OAuth2 and other authentication helpers. Because everything is text, requests live in your repository next to the code they test, and the CLI can run the same files in CI pipelines. It is free and open source under the MIT licence, maintained by Andreas Weber. The trade-offs are that you work in an editor rather than a form-based interface, documentation assumes some technical comfort, and it depends on a single maintainer. It suits developers who already like .http files and want more protocols and scripting.

Best for: Developers who keep requests as .http files and want scripting and more protocols.

Pros and cons

What works

  • Plain .http files in your repo
  • Many protocols, including gRPC and MQTT
  • Same files run in VS Code and CI
  • Free, MIT licensed

Why people leave

  • No form-based interface
  • Single maintainer
  • Docs assume technical comfort

Top httpYac alternatives

See all 5
  1. 1REST Client for VS Code logo
    REST Client for VS Code

    The simpler VS Code extension that popularised .http files.

    66.5
  2. 2Thunder Client logo
    Thunder Client

    A form-based API client inside VS Code and JetBrains.

    62.6
  3. 3Hurl logo
    Hurl

    Plain-text request files with strong assertions, built on libcurl.

    59.6
  4. 4Bruno logo
    Bruno

    A desktop app with its own plain-text collection format.

    59.4
  5. 5Slumber logo
    Slumber

    A terminal client with YAML collections and an interactive TUI.

    55.3

Why people left httpYac

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httpYac: common questions

Is httpYac free?

Yes. httpYac is free, open-source software.

Is httpYac open source?

Yes. The source code is on GitHub at AnWeber/httpyac.

What platforms does httpYac run on?

httpYac is available for Windows, macOS and Linux.

What are the best alternatives to httpYac?

The highest-ranked httpYac alternatives right now are REST Client for VS Code, Thunder Client and Hurl. See the full ranked list for pricing, platforms and verified facts.

See all 5 httpYac alternatives