Routebase keeps your API's design, docs, mock servers, contract tests and monitoring in one living OpenAPI spec so they can't drift apart.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
- Mac
- Windows
+2
Hoppscotch Alternatives
Apps similar to Hoppscotch include Postman, which has a free version. Other options are Insomnia REST Client, Yaak, HTTP Toolkit and ApiArk. API Clients like Hoppscotch are a crowded field, with more than 50 alternatives for Mac, Windows, Linux, the web and self-hosting.
Alternatives list
APIBuilderHQ is a zero-friction alternative to heavy API clients like Postman. Built entirely for the browser — no desktop app, no mandatory accounts, no cloud sync. Your collections and request data stay in localStorage on your device.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
United States
apikumo is an API workspace that combines an API client, a hosted documentation site, and a live MCP (Model Context Protocol) endpoint in one place. Design your API once, and every AI agent can call it.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
Resonance is a local-first, zero-account API client application designed to provide an excellent user experience for testing and interacting with APIs. Built with Tauri, it offers a modern and intuitive interface for developers.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Linux
- Flathub
- Flatpak
- Mac
- Windows
- Snapcraft
Use Test API for restful api testing. This postman alternative test rest api online and use post request online to test API endpoint.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Google Chrome
- United States
A local-first HTTP and GraphQL client for macOS with request history, dynamic variables, imports, and request-to-trace debugging.
Cost / License
- Free
- Open Source (MIT)
Application typeApplication types
Platforms
- Mac
Poland
EU
Slingshot is a web-based HTTP request client that is highly performant, low on resources, privacy respecting, local-first, free and open-source. It stores all your data locally in your browser. It allows you to import and export OpenAPI specs and Postman collections.
Cost / License
- Freemium
- Open Source (AGPL-3.0)
Platforms
- Online
- Self-Hosted
Sweden- EU
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Windows
- Mac
- Linux
- Global
+4
GetAPI is a native macOS app that simplifies REST API testing by allowing users to import from Postman, make HTTP requests, and view responses in a streamlined interface.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Mac
- United States
+2
5 Plunger alternativesPlunger is a small, native desktop app for checking one API endpoint: paste a URL or a curl command, press Send, and read the response as a collapsible JSON tree. There is no account, no cloud and no telemetry, and no browser CORS limits, so it reaches localhost and intranet...
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Windows
- Linux
+2
APISpider is a lightweight API client for testing, debugging, and documenting REST APIs. It includes request history, collections, environment variables, mock servers, and API docs — all designed to keep your workflow fast and distraction-free.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Software as a Service (SaaS)
- Online
Fast, offline-first REST API client for testing and debugging APIs — no account, no cloud, collections stored as plain JSON files on your disk.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Windows
- Mac
- Linux
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