nimbalyst / nimbalyst
Nimbalyst - The open-source visual workspace for Claude Code, Codex, and OpenCode. Run multiple coding agents in parallel, edit their work visually in markdown, mockups, and diagrams, and track tasks. Free, MIT-licensed desktop app for macOS, Windows, Linux, with mobile companion for iOS and Android.
mswjs / msw
The industry standard for API mocking in JavaScript.
AnnaSuSu / TechSpar
一个持续进化的面试训练系统。在线体验地址：https://techspar.cn
hey-api / hey-api
👨🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.
typegoose / mongodb-memory-server
Manage & spin up mongodb server binaries with zero(or slight) configuration for tests.
CristianOlivera1 / openvid
Create professional demos and 3D mockups in seconds, directly in your browser
help-me-mom / ng-mocks
Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup
CopilotKit / aimock
Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.
yakew7 / DesignHub
Open-source, local-first design & brand toolkit. Build a brand once, then get logo variants, mockups, social assets, a brand book PDF and design tokens. Plus fonts, colors, icons, SVG & accessibility tools. No login, no backend.
zuiidea / antd-admin
AI-friendly enterprise front-end best practices
mockoon / mockoon
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
orval-labs / orval
orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺
ardatan / graphql-tools
:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach
stoplightio / prism
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
kubb-labs / kubb
🧡 Turn your API spec into type-safe code. Generate TypeScript types, API clients, hooks, validators and mocks from a spec such as OpenAPI.
smocker-dev / smocker
Smocker is a simple and efficient HTTP mock server and proxy
dwyl / aws-sdk-mock
:rainbow: AWSomocks for Javascript/Node.js aws-sdk tested, documented & maintained. Contributions welcome!
mswjs / data
Data querying library for testing JavaScript applications.
marchaos / jest-mock-extended
Type safe mocking extensions for Jest https://www.npmjs.com/package/jest-mock-extended
httptoolkit / mockttp
Powerful friendly HTTP mock server & proxy library
daveearley / screenshot.rocks
Create beautiful mobile & browser mockups from screenshots
mswjs / interceptors
Low-level network interception library for Node.js.
openapistack / openapi-backend
Build, Validate, Route, Authenticate and Mock using OpenAPI
trueleaf / apiflow
A modern API workspace that works both online and offline — combining API documentation, testing, mock, and AI-powered automation in one lightweight tool
suites-dev / suites-unit
A unit testing framework for TypeScript backends working with inversion of control and dependency injection
btahir / shotcandy
Free, open-source screenshot beautifier that runs in your browser. Backgrounds, device frames, batch export, multi-screen mockups, code images, App Store sets and screen recordings. Nothing uploaded.
ItsTitle / fantasy-football-draft-room
A fantasy football draft tool with two modes: a mock draft against a room you can tune, and an assistant that follows your real Sleeper draft pick by pick. Live ADP for your scoring format, your own rankings, keepers and traded picks. Runs in your browser - no account, no API keys.
axium-lab / llm-mock
Self-hosted OpenAI-compatible mock server — test your LLM integrations without exposing your API key. By Axium.
MiladJoodi / MockData.ir
Fake REST APIs with live JSON. Docs, playground, and ready-to-use endpoints for frontend prototyping.