Karate Labs

What it does

Karate is the only open-source tool to combine API test-automation, API mocks, API performance-testing and UI automation into a single, unified framework.

Unified API, UI, and AI test automation. Open-source Karate framework plus Karate Agent, the enterprise self-hosted, BYO-LLM AI-native test runtime. Trusted by 76 of the Fortune 500.

Generation got cheap. Knowing what’s safe to ship didn’t. Karate governs it, on the open-source engine trusted by 76 of the Fortune 500. Write 60% less test code , run it in any CI, and drive the browser with any LLM you host, DOM-first, MCP-native, self-hosted. Open core, 8.9k★ on GitHub. “We ship every week now, but I can’t tell which requirements we’ve actually proven.” “The dashboards are green, but defects still escape, and now AI writes the tests too.” “I sign the release. I can’t stake my name on evidence I can’t reproduce, or that lives on a vendor’s servers.” “Locator hell, flaky suites, and…from karatelabs.io

• 
  Karate2018 · github.com · ▲89

  Web-services testing made simple 🥋

• 
  Apidog2024 · apidog.com · ▲570

  Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

• 
  Cursor for your API2025 · app.getelva.ai · ▲473

  Generate, edit, lint & test your API workflow in one place

• 
  Swagger Inspector2018 · swagger.io · ▲141

  Free online tool to test APIs and autogenerate documentation

• 
  Steel.dev – An open-source browser API for AI agents and apps2024 · github.com · ▲114

  🔥 Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure. - steel-dev/steel-browser

• 
  I open sourced the CLI of my API Testing Framework2023 · github.com · ▲16

  The main repo for APITrakr, an API testing framework. - apitrakr/packages/cli at main · apitrakr/apitrakr

• 
  /dev/null▲482

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Resend▲1,325

  An entire collection of pre-built components with a much faster development experience.

  Dev tools · 2023 · resend.com

• 
  STORI AI▲1,316

  Your ideas become visually compelling branded social posts

  AI · 2023 · storiai.com

• 
  Kombai▲1,079

  A new AI model that you can prompt with UI designs

  AI · 2023 · kombai.com

• 
  User Persona Generator▲1,014

  Understand your audience without 50 interviews

  AI · 2023 · founderpal.ai

• 
  Lottielab▲869

  Create and ship lottie animations to sites and apps faster

  Dev tools · 2023 · lottielab.com

• 
  LLMs can generate valid JSON 100% of the time▲854

  Outlines is a Python library that focuses on text generation with large language models. Brandon and I are not LLM experts and started the project a few months ago because we wanted to understand better how the generation process works. Our original background is probabilistic, relational and symbolic programming. Recently we came up with a fast way to generate text that matches a regex (https://blog.normalcomputing.ai/posts/2023-07-27-regex-guide...). The basic idea is simple: regular expressions have an equivalent Deterministic-Finite Automaton (DFA) representation. We…

  AI · 2023 · github.com