OpenAstra Alternatives

OpenAstra is described as 'A chat-based platform for API discovery and testing' and is a API Client in the development category. There are more than 50 alternatives to OpenAstra for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best OpenAstra alternative is Bruno, which is both free and Open Source. Other great apps like OpenAstra are Postman, Insomnia REST Client, Yaak and Fiddler.

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OpenAstra alternatives page was last updated Oct 27, 2025

Thunder Client
5 likes
Thunder Client is a hand-crafted lightweight Http Client extension for Visual Studio Code. No separate download needed, Just install the extension from VS Code marketplace.
62 Thunder Client alternatives
Cost / License
Free
Proprietary
Application types
API Client
HTTP Client
Platforms
Mac
Windows
Linux
Visual Studio Code
O
Is Thunder Client a good alternative to OpenAstra?
NativeRest
96 likes
Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.
Cost / License
Paid
Proprietary
Application types
HTTP Client
API Client
Origin
United States
Platforms
Mac
Windows
Linux
+9
O
Is NativeRest a good alternative to OpenAstra?
Kreya
3 likes
Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.
Cost / License
Freemium
Proprietary
Application types
HTTP Client
API Client
Origin
Switzerland
Platforms
Mac
Windows
Linux
+1
O
Is Kreya a good alternative to OpenAstra?
Ad
API Tester
6 likes
API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.
Cost / License
Free
Proprietary
Application types
API Client
HTTP Client
Platforms
Mac
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
+3
O
Is API Tester a good alternative to OpenAstra?
Pororoca
2 likes
A HTTP inspection tool with support for HTTP/2 and HTTP/3. Alternative to Postman.
Cost / License
Free
Open Source
Application types
API Client
HTTP Client
Platforms
Mac
Windows
Linux
+1
O
Is Pororoca a good alternative to OpenAstra?
Runscope
9 likes
Runscope helps you monitor, log and measure API usage to solve API problems fast. Automatically monitor APIs without any coding. Runscope provides complete logging for all of your API traffic. Track down troublesome API calls with powerful search.
Cost / License
Freemium
Proprietary
Origin
United States
Platforms
Mac
Windows
Linux
Online
O
Is Runscope a good alternative to OpenAstra?
httpYac Rest Client
2 likes
Used httpyac CLI tool underneath, which helps you execute _.http and _.rest files. This can be used to quickly execute a single *.http file, but also to execute all files in a folder. httpyac supports HTTP, Rest, GraphQL, WebSocket und gRPC...
Cost / License
Free
Open Source (MIT)
Application types
HTTP Client
API Client
Platforms
Mac
Windows
Linux
Chrome OS
O
Is httpYac Rest Client a good alternative to OpenAstra?
P
P
Posting
2 likes
The modern API client that lives in your terminal.
Cost / License
Free
Open Source (Apache-2.0)
Application types
API Client
HTTP Client
Platforms
Python
BSD
Linux
Mac
Windows
P
O
Is Posting a good alternative to OpenAstra?
R
R
restclient.el
2 likes
This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.
Cost / License
Free
Open Source
Application types
API Client
HTTP Client
Platforms
Mac
Windows
Linux
GNU Emacs
R
O
Is restclient.el a good alternative to OpenAstra?
HTTPie for Web & Desktop
3 likes
All the user-friendliness of our Terminal version, now wrapped up in a sleek graphical interface.
Cost / License
Free
Proprietary
Application types
HTTP Client
API Client
Origin
United States
Platforms
Mac
Windows
Linux
Online
Electron / Atom Shell
Flathub
O
Is this a good alternative to OpenAstra?
httpiness
2 likes
Httpiness is aimed to be a simple, straightforward HTTP client which minimizes time to configure, send, reconfigure and resend requests in order to maximize development efficiency.
Cost / License
Free
Open Source (MIT)
Application types
HTTP Client
API Client
Platforms
Mac
Windows
O
Is httpiness a good alternative to OpenAstra?
WizTools RESTClient
6 likes
RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities.
Cost / License
Free
Open Source
Application types
API Client
HTTP Client
Origin
India
Alerts
Discontinued
Platforms
Mac
Windows
Linux
O
Is WizTools RESTClient a good alternative to OpenAstra?