httpyac
Command Line Interface for *.http and *.rest files. Connect with http, gRPC, WebSocket and MQTT (by AnWeber)
grpcui
An interactive web UI for gRPC, along the lines of postman (by fullstorydev)

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httpyac | grpcui | |
---|---|---|
6 | 12 | |
606 | 5,567 | |
5.0% | 0.8% | |
8.4 | 6.9 | |
about 2 months ago | about 1 month ago | |
TypeScript | Go | |
MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
httpyac
Posts with mentions or reviews of httpyac.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-02-26.
- Quickly and easily send REST, SOAP, GraphQL and gRPC requests
- Show HN: Yaak – An Open Source, Git-Friendly Desktop API Client
- Beyond OpenAPI
- Hurl, run and test HTTP requests with plain text
-
Hoppscotch: Open-Source Alternative to Postman
There's also https://httpyac.github.io/ which has both standalone CLI and VS Code extension versions – might be interesting to explore.
-
Postman Now Supports gRPC
Here is the github repo for httpyac [1]. Not sure why it's not part of the httpyac org that hosts the site.
[1] https://github.com/AnWeber/httpyac
grpcui
Posts with mentions or reviews of grpcui.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-06-11.
-
These 20 Awesome API Clients Will Change How You Work with APIs
gRPC UI provides a graphical interface to interact with gRPC endpoints directly in the browser. It helps visualize, explore, and test your service APIs.
- Bruno
-
Spaceman: A gRPC client from another world. Comes both as a CLI and as a GUI built with Tauri and Yew.rs
Yeah just wanted to give my honest feedback! I like such a design more https://github.com/fullstorydev/grpcui
-
Show HN: ProtoCURL, a Curl for Protobuf
Pretty cool, but if you like a gui, I'd highly recommend https://github.com/fullstorydev/grpcui, lightweight and super easy to use
-
Why isn't there a Swagger/OpenAPI for binary formats?
You can see that reflection in action through tools like grpcui:
https://github.com/fullstorydev/grpcui
- Go and gRPC is just so intuitive. Here's a detailed full-stack flow with gRPC-Web, Go and React. Also, there is a medium story focused on explaining how such a setup might boost efficiency and the step-by-step implementation.
-
Postman Now Supports gRPC
I've been using https://github.com/fullstorydev/grpcui + Paw so I hope that Paw catches up and also adds gRPC support. Definitely a good decision to have everything in one tool.
- An interactive web UI for gRPC, along the lines of postman
-
My favourite backend tools
grpcurl / grpcui
-
MFlix - A C# .NET 5 Project
gRPCUI
What are some alternatives?
When comparing httpyac and grpcui you can also consider the following projects:
httptoolkit - HTTP Toolkit is a beautiful & open-source tool for debugging, testing and building with HTTP(S) on Windows, Linux & Mac :tada: Open an issue here to give feedback or ask for help.
bloomrpc - Former GUI client for gRPC services. No longer maintained.
Kreya - Kreya is a GUI client for REST and gRPC with innovative features for environments, authorizations and more.
grpcurl - Like cURL, but for gRPC: Command-line tool for interacting with gRPC servers
grpc-browser - A web UI for browsing and executing gRPC operations in your .NET application
buf - The best way of working with Protocol Buffers.

SurveyJS - JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor
Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
surveyjs.io
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