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Voiden.md

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.

Voiden is an offline, Git-native API client built around plain text files. Instead of storing requests in cloud workspaces or JSON collections, Voiden runs HTTP requests directly from Markdown files in your repository.

Requests, documentation, and tests live side-by-side in the same file and execute in place. Every part of a request โ€” endpoints, headers, auth, params โ€” can be structured and reused, making API work modular and version-controlled like code.

There are no exports, no sync steps, and no hidden storage layer. Git is the workspace. Markdown is the format. Your API requests are just files in your repo.

Voiden is designed for developers who already version control everything else โ€” and expect their API tooling to work the same way.

A startup from Amsterdam, The Netherlands.

(0 reviews)
Pricing:
  • Open Source
  • Free
  • Free Trial
Platforms:
  • Linux
  • Mac
  • MacOS
  • Windows
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Voiden.md

Voiden.md Reviews and Details

This page is designed to help you find out whether Voiden.md is good and if it is the right choice for you.

#API Tools #Developer Tools #APIs #Developer APIs #API Testing

Features & Specs

  1. plain text

    markdown

  2. executable docs

    design, testing and api documentation and context

  3. programmable interface

    no forms, slash commands

  4. LEGO for HTTP

    Every part of a request endpoints, headers, auth, params is a composable block. Reuse across files. Version control like code.

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Is Voiden.md good?

Voiden.md is a solid, developer-friendly API client that emphasizes local-first, offline, and Git-native workflows, making it a compelling free alternative to cloud-based tools like Postman.

Why choose Voiden.md?

  • Local-first and offline-capable, so your API specs and requests stay on your machine without forced cloud sync
  • Git-native design lets you version control API definitions and collaborate through standard Git workflows
  • Uses plain Markdown files for documentation, keeping your API docs human-readable and portable
  • Free to use with no account or login requirements, avoiding vendor lock-in and paywalls
  • Lightweight and fast compared to heavier, bloated API clients
  • Privacy-friendly since data isn't sent to third-party servers

Recommended for

  • Developers who prefer local-first and offline tools
  • Teams that want to version control and collaborate on API specs via Git
  • Privacy-conscious users who dislike mandatory cloud sync or accounts
  • Individuals looking for a free, lightweight alternative to Postman or Insomnia
  • Documentation-focused workflows where Markdown-based API docs are valued

External links

We have collected here some useful links to help you find out if Voiden.md is good.

  • Public traffic stats of Voiden.md

    Check the traffic stats of Voiden.md on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.

  • Domain Rating (DR)

    Check the "Domain Rating" of Voiden.md on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Voiden.md's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.

  • Domain Authority (DA)

    Check the "Domain Authority" of Voiden.md on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.

  • Public opinion on Reddit

    The latest comments about Voiden.md on Reddit. This can help you find out how popualr the product is and what people think about it.

Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Voiden.md and what they use it for.
  • Why Open Source API Tools Are Having a Moment
    I've personally enjoyed following projects like Voiden. It's been interesting to see how quickly the project has evolved and how much the community has contributed. Recently they've even added support for AI agents like Claude and Codex through skills, which feels like a glimpse of where developer tools are heading next. - Source: dev.to / 27 days ago
  • Slumber a TUI HTTP Client
    Great to see this space so active.I see this a TUI. You can also try out Voiden : https://voiden.md/ which has a different approach to this. Also YAML is a interesting choice - any reasons for this. - Source: Hacker News / about 2 months ago
  • A Markdown-based test suite
    I think you will like https://voiden.md/ - some what similar to what you did here. - Source: Hacker News / 2 months ago
  • Show HN: Files.md โ€“ open-source alternative to Obsidian
    I too built something similar but as an API Client - https://voiden.md/ - Obsidian really picking up ! - Source: Hacker News / 2 months ago
  • Show HN: Mezz, a curl-able WiFi sandbox for IoT pentesting
    This is very interesting - instead of curl you can integrate https://voiden.md/ maybe. - Source: Hacker News / 2 months ago
  • Quarkdown โ€“ Markdown with Superpowers
    Wow I love this ! I think we can have this as a plugin in https://voiden.md/. - Source: Hacker News / 3 months ago
  • Self-Updating Screenshots
    This is very cool - I think I will try having this in https://voiden.md/. - Source: Hacker News / 3 months ago
  • Show HN: leaf โ€“ a terminal Markdown previewer with a GUI-like experience
    This is an interesting approach - I guess you did not move away to a gui - but tried to have a guy-like experience in the terminal only - in https://voiden.md/ we do have a gui with blocks for api testing. - Source: Hacker News / 3 months ago
  • Show HN: Tolaria โ€“ open-source macOS app to manage Markdown knowledge bases
    I love how you have used markdown here ! We kind of have used the exact philosophy in https://voiden.md/ - offline-first, file based and support for git. We have done this for APIs. We are open source too. Take a look here : https://github.com/VoidenHQ/voiden. - Source: Hacker News / 3 months ago
  • Show HN: MDV โ€“ a Markdown superset for docs, dashboards, and slides with data
    Looks great - Something I built on markdown - https://voiden.md. - Source: Hacker News / 3 months ago
  • Show HN: Marky โ€“ A Lightweight Markdown Viewer for Agentic Coding
    Interesting this goes well with https://voiden.md/ - maybe we can integrate this - great work man! - Source: Hacker News / 3 months ago
  • European alternatives to Google, Apple, Dropbox and 120 US apps
    I think you should consider Voiden too : https://voiden.md/. - Source: Hacker News / 4 months ago
  • Ask HN: Is there any founder building non AI startup in 2026?
    We are building https://voiden.md/ - an API client - think jupyter notebook but for APIs. - Source: Hacker News / 4 months ago
  • Show HN: API for Flight Prices
    Maybe try it out with Voiden : https://voiden.md/ - I think this will be a interesting use case for us. - Source: Hacker News / 4 months ago
  • OAuth in Voiden
    Take a look at us here : https://voiden.md/. - Source: dev.to / 4 months ago
  • Show HN: Cc-md โ€“ Zero-cost Obsidian sync across iPhone, Mac, and GitHub
    Interesting - I think this can go with Voiden. We are an offline API Client built around Markdown Try it here : https://voiden.md/. - Source: Hacker News / 5 months ago
  • Postman: From API Client to "Everything App"
    Maybe tryout https://voiden.md/. We are a markdown based offline api client. Opensourced sometime back. - Source: Hacker News / 5 months ago
  • The API Tooling Crisis: Why developers are abandoning Postman and its clones?
    I believe we need to have a fundamentally different approach so as to solve this problem here;I think Voiden does justice to that. You may check out : https://voiden.md We opensourced sometime back.Voiden is offline and markdown based. I believe we check all the boxes of. - Source: Hacker News / 5 months ago
  • Composing APIs and CLIs in the LLM Era
    Building an API client : https://voiden.md/ The points made in the article can be included in the design choices. - Source: Hacker News / 6 months ago
  • The Only Two Markup Languages
    Btw something I am doing with markdown : https://voiden.md/. - Source: Hacker News / 6 months ago
  • Show HN: Tusk Drift โ€“ Turn production traffic into API tests
    Building something adjacent to this field :https://voiden.md/. Also,I loved the approach here! - Source: Hacker News / 6 months ago

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Is Voiden.md good? This is an informative page that will help you find out. Moreover, you can review and discuss Voiden.md here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.

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