Open Source API Clients using Testing Library
A curated collection of the best open source client applications for interacting with and testing APIs. using Testing Library.
Lightweight, fast, and open-source API client for developers
Stars
47,440Last commit
15 hours agoLicense
MIT
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.
Open Source Alternative to:
Powerful API development and testing made effortless
Stars
40,032Last commit
9 hours agoLicense
Apache-2.0
Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.
Open Source Alternative to:
Unified API development ecosystem for modern teams
Stars
2,617Last commit
7 months agoLicense
AGPL-3.0
All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.
Open Source Alternative to:
Build APIs like code with Git-native workspace
Stars
1,772Last commit
1 day agoLicense
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:
Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
Openlane