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Dev tools · May 22, 2025

Voiden API Client

Hey HN! Aldin here, a helping hand to Voiden (https://voiden.md) Voiden is a free, offline, Git-native API client. Your API definitions, docs, and tests all live together. It came out of years of frustration: cloud sync lock-in, paywalled basics, bloated UIs, and lag on even simple requests. So the team built the opposite: an offline tool with no login, no telemetry, no lock-in. Just markdown and hotkeys. It behaves like code: local files, git branches, no cloud nonsense. Terminal is built-in, so you can commit, diff, and push changes right from the app. Docs stay close to your…

Voiden API Client launched on May 22, 2025 with 143 votes, #284 of 7,905 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.

In plain words

Voiden is a free, offline API client that stores API definitions, documentation, and tests in a single Git-native workspace. Designed for developers frustrated with cloud lock-in and bloated interfaces, it works entirely locally with no login, telemetry, or subscription required. API specs live as markdown files alongside requests and docs, with a built-in terminal for version control operations, ensuring documentation stays synchronized with actual API behavior.

written from the facts on this page · September 2026

From the sources

Voiden.md is a developer-first API client with local storage, Git-integrated all based on markdown + offline support. Voiden's modular API design and open-source plugins offer flexibility and security without the bloat.

Voiden.md is an offline-first, Git-native API workspace that unifies specs, docs, tests, and mocks using programmable Markdown blocks. Build APIs the way you actually work.

Design, Test, Document APIs, in one place. Compose APIs with blocks. Reuse, replace & version everything just like code. Truly Git Native. No Lock-in. Every team has this same mess. Five tools and Zero coherence. Voiden solves this by bringing API design, testing, and docs in one place. File-centric. Text-based. Git-native. Built for developers who version-control everything else. Requests, docs, and explanations live side-by-side in plain Markdown, and execute in place. No switching tools. Decompose requests into composable blocks: endpoint, headers, auth, params. Reuse across files like functions. No export. No sync. No JSON blobs. Pure Markdown. Git is the storage layer: your repo is the…from voiden.md

In the maker’s words, at launch

Hey HN! Aldin here, a helping hand to Voiden (https://voiden.md) Voiden is a free, offline, Git-native API client. Your API definitions, docs, and tests all live together. It came out of years of frustration: cloud sync lock-in, paywalled basics, bloated UIs, and lag on even simple requests. So the team…

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  • Voiden – an offline, Git-native API tool built around MarkdownFeb 2026 · github.com · ▲48

    Hi HN, 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:…

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