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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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89 % |
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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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87 % |
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Pingllo — Free API Testing Tool | No Login Required
Test REST APIs and GraphQL endpoints instantly with Pingllo. Free browser-based API client — no account, no install, no waiting. Supports collections, enviro...
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87 % |
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APIScope
Source-code-aware API client for VS Code and Cursor
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87 % |
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Visual API Testing Tool — Open Source | APIWeave
Build and run API tests on a visual canvas. Chain requests, validate responses, and keep execution local. Open source for Windows, macOS, and Linux.
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87 % |
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API For Work — Free API Security, Testing & Developer Tools
Free API security, testing, debugging and developer tools including API audit, CORS, JWT, TLS, OpenAPI and performance utilities.
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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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86 % |
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ApiMocker - Free Mock REST API for Frontend Developers
Build with a free shared mock REST API for users, posts, todos, and comments. Test CRUD, search, pagination, relationships, delays, and errors.
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85 % |
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Tabriel - Build APIs in minutes
A faster toolkit for building APIs. Build functional APIs without code. Used by thousands of companies and developers in all popular programming languages.
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85 % |
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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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85 % |
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APISetu — The modern API client for teams
APISetu is a fast, collaborative API client. Design, send, and test HTTP requests, organize them into collections, manage environments, mock servers, and run...
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85 % |
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Deckend
|
85 % |
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SimulAPI – Build mock REST APIs in seconds
Describe your API in plain language. Get a live, working REST API instantly. No code, no schema wrangling—just describe and use.
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85 % |
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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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85 % |
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DevPouch - Browser-Local API and QA Developer Workbench
Inspect API contracts, validate structured data, design QA tests, and debug HTTP workflows with browser-local tools and guides with dated source-review records.
|
85 % |
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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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85 % |
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DevFixture - Practical tools for developers
Practical browser tools, mock APIs, and developer notes for building and testing web applications.
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85 % |
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Get Free APIs – 2,700+ Public APIs for Testing & Projects [No Key]
Browse thousands of free public APIs, filtered by whether they need an API key, support CORS or run over HTTPS. Every listing is checked automatically so dea...
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85 % |
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2KEN - Unified AI API gateway
2KEN gives you one unified AI API gateway and one API key for GPT, Claude, Gemini, Grok, DeepSeek, Qwen, and more, with OpenAI-compatible access, lower costs...
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84 % |
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Apicat
Your Own Offline Lightweight API Client. Apicat stores your .http files locally. It’s Git-friendly, open-source, and highly compatible with Postman.
|
84 % |
Detected social media networks