Threadport
Focus: coding agents, handoff and verifiable. Shares developer tools and open source with Hoppscotch. An AI tool, not a web app. Free (Hoppscotch: Freemium). Rated 4.3 (Hoppscotch: 4.6).
AI ToolFreeCross-Platform
4.3Visit
Web App
Hoppscotch
A fast, open-source API client that runs in your browser.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Hoppscotch?
Hoppscotch is a free, open-source API development tool and lightweight alternative to Postman for testing REST, GraphQL, WebSocket and other requests. It runs in the browser or as a desktop app, supports collections, environments and team workspaces, and can be self-hosted, with paid plans for larger organisations.
Pros
- Very fast and lightweight
- Supports many protocols
- Self-hostable
Cons
- Fewer integrations than Postman
- Some admin features are on paid plans
Who should use Hoppscotch
Developers who test APIs often and want a quick, open-source client.
Who may not need it
People who never work with APIs or web services.
Hoppscotch alternatives
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Documenso
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Free alternatives to Hoppscotch
Free resources that cover similar ground.
CyberChef
Focus: data conversion and encoding. Shares developer tools and open source with Hoppscotch. Free (Hoppscotch: Freemium). Adds Offline. Rated 4.8 (Hoppscotch: 4.6).
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Storybook
Focus: ui development, components and testing. Shares open source with Hoppscotch. A framework, not a web app. Free (Hoppscotch: Freemium). Rated 4.7 (Hoppscotch: 4.6).
FrameworkFreeWeb
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Theatre.js
Focus: animation, motion and web. Shares open source with Hoppscotch. A framework, not a web app. Free (Hoppscotch: Freemium). Same 4.6 rating.
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JSON Crack
Focus: json viewer and data visualisation. Shares developer tools and open source with Hoppscotch. Free (Hoppscotch: Freemium). Rated 4.5 (Hoppscotch: 4.6).
Web AppFreeWeb
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Whiteboard
Focus: software design, code review and diagrams. Shares open source with Hoppscotch. A desktop app, not a web app. Free (Hoppscotch: Freemium). Rated 4.5 (Hoppscotch: 4.6).
Desktop AppFreemacOS, Windows
4.5Visit
Agents Can Communicate
Focus: ai agents, claude code and codex. Shares open source with Hoppscotch. A framework, not a web app. Free (Hoppscotch: Freemium). Rated 4.4 (Hoppscotch: 4.6).
FrameworkFreemacOS, Linux
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