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Open Source Projects tagged "Testing"

A curated collection of the best open source projects tagged "Testing". Each listing includes a website screenshot along with a detailed review of its features.

Hoppscotch

Sleek, intuitive API development and testing platform

  • Stars

    80,768

  • Last commit

    4 days ago

  • License

    MIT
Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Open Source Alternative to:

Postman

Bruno

Lightweight, fast, and open-source API client for developers

  • Stars

    48,301

  • Last commit

    5 hours ago

  • License

    MIT
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.

Open Source Alternative to:

Postman

Keploy

Turn production traffic into regression tests, no code changes

  • Stars

    Stars growing over the last 30 days19,552

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Captures real API traffic and dependency calls via eBPF to generate tests and mocks automatically, then replays them in CI to catch regressions before they ship.

Open Source Alternative to:

Postman

Voiden

Build APIs like code with Git-native workspace

  • Stars

    1,787

  • Last commit

    5 days ago

  • License

    Apache-2.0
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.

Open Source Alternative to:

Postman

Hercules

AI
Open-source testing agent for UI, API, security, accessibility & visual QA

  • Stars

    Stars growing over the last 30 days1,217

  • Last commit

    11 days ago

  • License

    AGPL-3.0
Hercules is the first open-source testing agent, enabling zero-code, zero-maintenance UI, API, security, accessibility, and visual validations.

Open Source Alternative to:

QA Wolf

Chapar

Fast, secure, offline API client for REST and gRPC

  • Stars

    729

  • Last commit

    5 days ago

  • License

    BSD-3-Clause
Cross-platform API client offering fast, secure, and offline testing for REST and gRPC services. Available on macOS, Windows, and Linux with intuitive design.

Open Source Alternative to:

Postman

Argos

Visual regression testing for seamless UI development

  • Stars

    Stars growing over the last 30 days657

  • Last commit

    3 days ago

  • License

    MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.

Open Source Alternative to:

Chromatic
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