Open Source Alternatives

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VoidZero

stars 4.9Kforks 203

Next-generation unified JavaScript tooling infrastructure

Developer Tools Coding Workflow Automation+3

Echolon

stars 50forks 4

Local-first API client for HTTP, REST, and GraphQL

API Client Developer Tools Git+3

Surfpool

stars 563forks 155

Drop-in local Solana test validator with forking support

Testing Developer Tools Web3+3

Octrafic

stars 34forks 5

AI-powered CLI for automated API testing with natural language

AI Coding Assistant API Development Tools CLI+4

Maestro

stars 14.8Kforks 873

Simple end-to-end testing for iOS, Android, and web apps

Testing Developer Tools CI/CD Platforms+5

Hoppscotch

stars 79.5Kforks 5.9K

Open source Postman alternative for REST and GraphQL testing

API Client API Development Tools Testing+4

Yaak

stars 18.7Kforks 765

Local-first API client for HTTP, GraphQL, and WebSocket

API Client API Development Tools Testing+3

Flipt

stars 4.8Kforks 296

Feature flags that store and evaluate on your own infrastructure

Feature Flag Self Hosted Cloud Native+5

SWE-agent

stars 19.7Kforks 2.2K

Autonomous AI agent that reads code and resolves GitHub issues

AI Agents LLM Developer Tools+5

ProjectDiscovery

stars 29.1Kforks 3.5K

Open source security tools for finding vulnerabilities at scale

Security Cybersecurity DevOps Tools+4

Tunnelmole

stars 1.9Kforks 122

Get a public HTTPS URL for your local development server

Developer Tools Testing Self Hosted+3

Keploy

stars 17.6Kforks 2.2K

AI-powered tool that converts API traffic into test cases

Testing AI Coding Assistant Developer Tools+5