Zaku Alternatives
Apps similar to Zaku include Bruno, which is open source with a free version. Other options are Postman, Insomnia REST Client, Yaak and ApiArk. There's no shortage of API Clients like Zaku, with more than 25 alternatives for Windows, Mac, Linux, the web and self-hosting.
Alternatives list
EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.
Cost / License
- Freemium
- Proprietary
Since
- Since 2024
Platforms
- Mac
- Windows
- Linux
- Online
- Google Chrome
- Visual Studio Code
- IntelliJ IDEA
Cost / License
- Freemium
- Proprietary
Since
- Since 2025
Platforms
- Online
Vietnam
+2
Fast, offline-first REST API client for testing and debugging APIs — no account, no cloud, collections stored as plain JSON files on your disk.
Platforms
- Windows
- Mac
- Linux
Ecuador
Send HTTP requests to API endpoints. GetIt's main focus is to make your life a lot easier when you have to test APIs or use somebody else's API.
Platforms
- Linux
- Flathub
- Flatpak
+1
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.
Platforms
- Online
United States
Lightweight, free and open-source offline REST and GraphQL API client for Visual Studio Code. A privacy-focused client for testing APIs, HTTP requests and web services.
Platforms
- Cursor
- Windsurf
- Visual Studio Code
India
+9
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)
Since
- Since 2025
Platforms
- Online
- Self-Hosted
Sweden
EU
Api Quest is a desktop application designed for executing HTTP requests, storing them on the local file system, and providing portability. Whether you're a developer, QA or system engineer, this tool offers solution for handling HTTP requests effectively.
Platforms
- Windows
- Linux
Use Test API for restful api testing. This postman alternative test rest api online and use post request online to test API endpoint.
Platforms
- Google Chrome
- United States
Platforms
- Google Chrome
+3
API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily create & customize your API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.
Platforms
- Windows
- Mac
- Linux
- Debian
- Ubuntu
- Linux Mint
- Fedora
- Red Hat Enterprise Linux
- CentOS
United Kingdom
