Light, fluffy, and always free - The AWS Local Emulator alternative
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Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Mimesis is a Python library for generating fake but realistic data in multiple languages and locales.
- mimesis
- fake
- data
- generator
🚦 Your own mini Travis CI to run tests locally
Use docker/podman, compose local and remote via a FluentAPI
Free, open-source AWS emulator. LocalStack alternative: 107 services, 7,657 operations, true 100% Smithy conformance (258,545/258,545 variants pass). No account, no auth token, no paid tier.
Fast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.
The CLI for working with JSON Schema. Covers formatting, linting, testing, bundling, and more for both local development and CI/CD pipelines
- json
- json-schema
- jsonschema
- openapi
recheck for web apps – change comparison tool with local Golden Masters, Git-like ignore syntax and "Unbreakable Selenium" tests.
- selenium-java
- regression
- testing-tools
- test-automation
Hardware testing for the software world. Real or virtual, local or remote, human, automated or agentic.
- hardware
- hardware-in-the-loop
- hil
- testing-framework
:heavy_check_mark: Run tests for multiple versions of Node.js in local env.
- test
- travis
- circleci
Feel how fast a local LLM runs before you buy the hardware
Go Wrapper for using localstack
- localstack
- go
- golang
- testing
A super simple utility for testing Apache Hive scripts locally for non-Java developers.
A Mocha test driver package for Meteor 1.3+. This package reports server AND client test results in the server console and can be used for running tests on a CI server or locally.
A lightweight Snowflake emulator built with Go and DuckDB for local development and testing
localaik is a local compatibility server for a subset of the Gemini and OpenAI APIs. Run one container locally, point your SDK to it, and the proxy serves both protocol shapes on the same port for tests and development.