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OpenReq — Free Open-Source API Client | Self-Hosted Postman Alternative
OpenReq is a free, self-hosted API testing platform with Python/JS scripting, OAuth 2.0, AI collection builder, visual test flows, WebSocket & GraphQL suppor...
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90 % |
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API Post - Free Online API Client & Workstation | REST, GraphQL, WebSocket
API Post is a sleek, powerful, free online API testing workstation. Test REST, GraphQL, and WebSocket APIs directly in your browser with dynamic environment...
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90 % |
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AlleForge — API Testing, Forged for the Web
AlleForge is the browser-native API platform to build, test, document, and ship APIs faster. No installs. No updates. Just open a tab.
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89 % |
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FHNxDev - Open Source API Development Tools
FHNxDev is a free, open-source API development platform. Test REST, GraphQL, WebSocket, SSE, and MQTT APIs from your browser. Self-host on your own server.
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89 % |
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Apiboo — manage your project and ship it from the same app
Tasks, docs and team chat next to your API client, database, terminal and servers. Plain files in your git repo, readable by AI agents. Free on your machine.
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89 % |
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API Workbench
A browser based API client for REST, GraphQL, and WebSocket. Organize requests into projects, use environments, import Postman collections, and run tests.
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89 % |
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Apiboo — the local-first workspace for API work
One desktop app for API work: REST, GraphQL, gRPC, WebSocket and SSE client, database manager, terminal and SSH, FTP/SFTP, a mail catcher, boards, docs and c...
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89 % |
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Mock APIs - Free REST & SOAP APIs for Devs & QA
Create AI-powered mock servers in seconds. Generate realistic responses from prompts or real traffic for REST, SOAP, GraphQL, and gRPC. No code, no dependenc...
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88 % |
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reqo – API Developer Toolkit
Send HTTP requests across 12 protocols, build mock APIs, document schemas, import/export collections — all data stays in your browser. No server, no account...
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88 % |
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Apicurl - Free & Modern API Testing Tool | Apicurl
Build, test, and document your APIs faster with Apicurl. The lightweight, modern alternative for developers.
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87 % |
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API Client for gRPC, REST & GraphQL | Kreya
Explore, test, and automate gRPC, REST, GraphQL, WebSocket, and SSE APIs in a privacy-first desktop client with Git-friendly local files.
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87 % |
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RESTK — The Complete Native API Client for macOS & Windows | RESTK
RESTK is a complete, native API client for macOS & Windows — REST & GraphQL, 12 auth methods, scripting, environments, and one-click import. Plus the only em...
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87 % |
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SchemaClient — Free API Testing Tool & Postman Alternative
Free API testing tool for developers. REST and GraphQL client, localhost tunnel, live traffic monitor and schema validation. A native Postman alternative.
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87 % |
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HttpForge — Modern Open-Source API Client for Developers
HttpForge is a modern Privacy First, open-source API client built for professional developers. Design, test, and manage REST API requests on Windows and VS C...
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87 % |
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APIMonkey — Local-first API Client, Testing & Load Testing
Build, test, and load test APIs locally with APIMonkey, the Git-native desktop API client for macOS, Windows, and Linux.
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87 % |
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Devman API – Free Open Source REST API Testing Tool
Devman API is a free, open-source REST API testing tool in your browser. Import Swagger, OpenAPI, Postman, or cURL, chain requests, and export reports.
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87 % |
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Kurlo — the API client with no pricing page
A free, open-source desktop API client for HTTP, GraphQL, gRPC, WebSocket, Socket.IO, SSE and MCP. No account, no seats, no cloud, no telemetry. Imports Post...
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87 % |
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Rostyman — API, Database & Browser Testing in One App
The only tool that tests your APIs, your UI, and your database — performance, security, accessibility, and automation — all in one place, powered by AI, with...
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86 % |
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API Dev Studio - Mocks, Webhooks, and Proxies in One App
API Dev Studio — Free desktop app for mocking APIs, catching webhooks, and proxying requests. Built with Rust + Tauri. No cloud, no subscription. Pro from $4...
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86 % |
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Hurl - Modern Postman Alternative | API Client for REST & GraphQL
Hurl is a modern Postman alternative. Test REST & GraphQL APIs, manage environments, run collections, and collaborate with your team. Works in the browser —...
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86 % |
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