Free Hoppscotch Alternative
Hoppscotch is an open-source, lightweight API development platform designed as a fast, web-based alternative to Postman and Insomnia. It offers a clean interface for testing REST, GraphQL, WebSocket, and other API protocols entirely in your browser. While Hoppscotch is free and open-source, it still requires creating an account to access features like request history, collections, and cloud sync. If you're looking for an even simpler, zero-signup API testing tool for quick HTTP requests without any account management, Fixie's API Request Builder provides instant access with no overhead.
Try API Request Builder Free →API Request Builder vs Hoppscotch
| Feature | Fixie API Request Builder | Hoppscotch |
|---|---|---|
| Price | Free forever | Free and open-source |
| Signup Required | No | Optional (but needed for collections/history) |
| Installation | None (runs in browser) | None (web-based, self-hostable) |
| Privacy / Data Handling | Requests stay in your browser | Cloud sync available (opt-in) |
| Protocols Supported | HTTP/REST | REST, GraphQL, WebSocket, SSE, MQTT, SocketIO |
| Request Collections | No | Yes (requires account) |
| Environment Variables | No | Yes |
| Team Collaboration | No | Yes (requires account) |
| cURL Import/Export | Yes | Yes |
| Self-Hosting | No | Yes (open-source) |
Why Choose Fixie?
Hoppscotch is an excellent open-source alternative to Postman and Insomnia, offering a fast, web-based interface for testing APIs without installing desktop software. It supports multiple protocols (REST, GraphQL, WebSocket, MQTT, and more) and offers features like request collections, environment variables, and team collaboration — all accessible through your browser. It's also self-hostable, making it a great choice for teams that want to run their own API testing infrastructure.
However, to use Hoppscotch's collection management, request history, or team features, you need to create an account and sync your data to their cloud (or self-host it). For many developers, this is fine — but if you just need to test a single API endpoint quickly without managing yet another account, it adds unnecessary friction.
Fixie's API Request Builder is designed for absolute simplicity: no account, no collections, no history — just instant API testing. Open the page, configure your request, send it, and inspect the response. Your requests are executed directly from your browser with no server logging or storage. This makes Fixie ideal for one-off API tests, debugging on shared computers, or when working with sensitive data where you don't want requests stored in any cloud service.
How to Use API Request Builder
Step 1: Open the API Request Builder
Go to fixie.tools/api-tester — no account signup or configuration required.
Step 2: Configure Your API Request
Enter the target API URL, select the HTTP method (GET, POST, PUT, DELETE, PATCH, etc.), add custom headers (Authorization, Content-Type, etc.), and paste your request body if needed. Supports JSON, XML, form data, and raw text.
Step 3: Send the Request
Click 'Send Request' to execute the API call. The tool will display the HTTP status code, response headers, and formatted response body.
Step 4: Copy or Export
Copy data from the response, or export the entire request as a cURL command to save for documentation or share with your team.