The Ultimate Algorithmic Mock Data Engine. Stop mocking with random strings — generate cryptographically valid test data. 390 types · 6 locales · Zero dependencies · CLI (Local Serverless) + REST API + Pyton LIb + JMeter Plugin.
Free desktop API mocking platform. Create HTTP/REST and WebSocket mock servers with a modern UI. Perfect for developers, QA teams, and trainers.
Cost / License
- Free
- Proprietary
Platforms
- Mac
- Windows
- Linux

MockFlow.io is a developer tool for creating, managing, and testing mock APIs quickly. It helps frontend developers, QA testers, SaaS builders, and agencies simulate real API responses without setting up a backend.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)


+1
DataLensia is a privacy-first, browser-based data toolkit that lets you visualize CSV datasets and work with JSON/NDJSON using tools like a JSON comparator, schema generator, editor, and converter — all processed locally.


+15
Instantly create HTTP mock API endpoints with custom responses, dynamic path params, custom headers, configurable delays, and real-time traffic logs.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Self-Hosted


+2
Cost / License
- Freemium
- Proprietary
Platforms
- Windows
- Mac
- Linux


+4
Zunoy MockAPI is a web mock REST API generator without a backend. It allows you to specify endpoints, request methods, response data, headers, query parameters, and status codes so that applications can be tested against realistic API responses.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)

























