Hoppscotch (hoppscotch.io, formerly Postwoman) — an open-source web-based API client. Self-hostable via Docker. Supports REST, GraphQL, WebSocket, MQTT. Lightweight (<1 MB PWA) vs Postman desktop (500+ MB). Alternatives: Enterno.io (built-in + monitoring), Bruno (desktop, git-friendly), Postman (SaaS). Hoppscotch is best for one-off browser tests.
Below: competitor overview, feature comparison, when Enterno.io wins, FAQ.
Free online tool — HTTP header checker: instant results, no signup.
Hoppscotch built by Liyas Thomas in 2019 (open source). MIT license. Cloud SaaS (free) + self-hostable Docker image. Endorsed by Linus Torvalds on Twitter. Supports Google OAuth + GitHub OAuth + self-hosted auth.
| Feature | Enterno.io | Competitor |
|---|---|---|
| Open source | ❌ | ✅ MIT |
| Self-hostable (Docker) | ❌ | ✅ |
| Web-based (no install) | ✅ | ✅ |
| MQTT / WebSocket support | ❌ | ✅ |
| Continuous monitoring | ✅ | ❌ |
| Team spaces + sharing | ✅ Teams | ✅ Free |
| Uptime alerts integration | ✅ | ❌ |
| Price | Free + ₽490/mo | Free + $99/mo team |
If you're seeking alternatives to Hoppscotch in 2026 for web API clients, consider Postman, Insomnia, and Swagger UI. These tools offer robust functionality, including support for REST and GraphQL, automated testing, and seamless collaboration features. Postman is particularly noted for its extensive integration capabilities and API documentation. Insomnia stands out for its user-friendly interface, while Swagger UI excels in API design and visualization.
Postman remains a leading alternative to Hoppscotch in 2026, especially for teams focused on collaboration and automation. It supports REST, SOAP, and GraphQL, making it versatile for different API types. Postman's features include:
To get started, you can install Postman via npm install -g postman or download it directly from Postman's official website. A sample command to create a new request in Postman is:
POST https://api.example.com/v1/resourceWith headers:
{ 'Content-Type': 'application/json', 'Authorization': 'Bearer YOUR_TOKEN' }Insomnia is another excellent alternative to Hoppscotch, particularly appreciated for its intuitive user interface and ease of use. It provides a streamlined workflow for developers who require quick API testing and debugging. Key features include:
To install Insomnia, you can download the installer from Insomnia's official website. A practical example of using Insomnia for a GET request is:
GET https://api.example.com/v1/resourceWith the following settings:
{ 'Authorization': 'Bearer YOUR_TOKEN' }Insomnia's workspace feature also allows for organized project management, making it a great choice for teams.
For 2026, the top alternatives to Hoppscotch include Postman, Insomnia, and Swagger UI, each offering unique features for API testing and development. Postman is ideal for collaborative workflows with extensive documentation support, while Insomnia excels in user experience with simplified testing. Swagger UI stands out for its interactive API documentation capabilities, allowing developers to visualize and test endpoints effectively.
Paw is a native macOS application that offers a rich interface for API development. It supports REST, GraphQL, and WebSocket APIs, making it versatile for various projects. Paw’s features include environment variables, dynamic values, and a powerful code generator that can export requests in multiple programming languages.
To get started with Paw, you can create a new request by following these steps:
Once your request is set up, click on the 'Send' button to execute it. Paw will display the response in a structured format, making it easy to analyze the output.
With its built-in support for macOS features like Touch Bar and native notifications, Paw enhances the user experience significantly for developers working on Apple devices.
HTTPie is a command-line HTTP client designed for ease of use, enabling developers to interact with APIs quickly and effectively. It supports JSON by default and provides a user-friendly interface compared to traditional cURL commands. HTTPie’s syntax is straightforward, making it accessible for developers of all skill levels.
To install HTTPie, you can use pip:
pip install httpieOnce installed, you can make a simple API request using the following command:
http GET https://api.example.com/v1/resourceThis command sends a GET request to the specified endpoint. HTTPie automatically formats the response in a clear, readable format, highlighting the status code, headers, and body.
For more complex interactions, you can add headers or JSON data to your requests. For example, to send a POST request with JSON data:
http POST https://api.example.com/v1/resource name='value' description='This is an example.'HTTPie not only simplifies API interactions but also integrates seamlessly with other tools, making it a valuable alternative to Hoppscotch for developers who prefer command-line interfaces.
Postman Web requires login + limited features. Hoppscotch — full-featured without login (via local storage).
<code>docker run -p 3000:3000 hoppscotch/hoppscotch</code> — 30 seconds. For prod add PostgreSQL + volume for persistence.
If self-hosted — 100%. Cloud free-tier — stored in Hoppscotch cloud (there is a local-only mode).
Hoppscotch — testing. Enterno — monitoring. Flow: test API in Hoppscotch → create Enterno monitor with the same URL + expected response.
Free plan — 10 monitors, checks every 5 min, no card required. Upgrade for 1-minute interval and multi-region monitoring.