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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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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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86 % |
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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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85 % |
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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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85 % |
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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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85 % |
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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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84 % |
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Solo
Solo is a modern HTTP client that makes testing, developing, and debugging APIs easy with an intuitive interface. Support for HTTP, GraphQL, and gRPC. Offlin...
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84 % |
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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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84 % |
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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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84 % |
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API Peek — Web-Based API Client for Teams
Test REST, HTTP, and GraphQL APIs from your browser. Organize collections, environments, team workspaces, runners, mock routes, and shared docs.
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84 % |
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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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83 % |
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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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83 % |
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WebMaestro - Open Source REST API Client
WebMaestro is an Open Source REST API testing tool that simplifies testing and development of REST APIs
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82 % |
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Wurl - Lightweight API Testing Desktop App | Secure, Fast & Offline
Powerful API testing without the bloat. A lightweight desktop app for developers who value security and performance. Test APIs locally with complete control...
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82 % |
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AximCode - Developer Tools for Modern Teams
AximCode builds developer tools for modern teams — mock REST APIs, interactive demos, and an open-source UEFI firmware SDK.
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82 % |
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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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82 % |
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DevUtilities Lab – Free Developer Tools & Utilities
Free developer tools including mock APIs, JSON formatter, converters, compilers, and API playground to build faster.
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82 % |
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adOmnia — The local-first developer toolbox
adOmnia is a local-first desktop toolbox for API, protocol, mock, proxy, browser debug, database and load-testing workflows.
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82 % |
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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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82 % |
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Powerduck — The AI-Native, Local-First OpenAPI Studio
Powerduck is a local-first, AI-driven API studio built around one OpenAPI YAML in your repo. Design, debug, test, mock, document, and generate an MCP server...
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81 % |
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