We have open-sourced Voiden.
Most API tools are built like platforms. They are heavy because they optimize for accounts, sync, and abstraction - not for simple, local API work.
Voiden treats API tooling as files.
It’s an offline-first, Git-native API tool built on Markdown, where specs, tests, and docs live together as executable Markdown in your repo. Git is the source of truth.
No cloud. No syncing. No accounts. No telemetry.Just Markdown, Git, hotkeys, and your damn specs.
Voiden is extensible via plugins (including gRPC and WSS).
Repo: https://github.com/VoidenHQ/voiden
Download Voiden here : https://voiden.md/download
We'd love feedback from folks tired of overcomplicated and bloated API tooling !
Every other API-testing tool seems to have evolved into a bloated, cloud-first, subscription-based "service" (Yes, I'm looking at you, Postman, Paw/RapidAPI, etc), and I'd been looking for just this type of thing when I stumbled across this project a few months ago. Finally, somebody gets it!
It works different, and it may still have a few rough edges, but now every developer with access to our projects has access to the relevant APIs and instructions on how best to use them -- while the credentials remain safely off the cloud and on their own machines.
It's been exhilarating to finally have full testing and documentation right in our code bases, and the fact that it's now open source means our team can fully embrace Voiden without fear of once again having the rug pulled out from under its feet.
Thanks for going this route! I predict Voiden is going to be the sleeper hit for developers this year.
On a product note, I don't think the logo matches the name at all.
The logo neither says "voids" nor "API tool". It is a blocky infinity symbol that to me means nothing in-context. Also the duotone and slight asymmetry (of a normally symmetric symbol) gives hints of duality/gemini, which also means nothing to me in the context of what the tool is and the name that it has.