Voiden

It provides an offline‑first, Git‑native workspace where API specifications, documentation, tests and mocks are stored together in plain Markdown files. Each request is built from composable blocks—such as endpoint, headers, authentication and parameters—that can be reused and versioned like code. Because everything lives in .void files, changes are diffable, reviewable and branchable within a standard Git repository, eliminating the need for external services or proprietary JSON blobs.

The tool is aimed at developers who already version‑control their code and want a single source of truth for API work. It lets users design, test and document APIs without switching between separate applications, and it works without an internet connection or cloud account. The workflow mirrors typical software development practices, treating API artifacts as text files that can be edited, committed and merged alongside the rest of the codebase.