Voiden

Voiden is an offline API client for developers, QA engineers, and technical writers who would rather keep requests, tests, notes, and docs in one file than across four tools. Nothing is locked in a proprietary workspace: a void file is text, so it diffs, greps, and merges the way the rest of your repository does.

Built with Electron, TypeScript and JavaScript, Voiden requires no account and sends no telemetry. A void file combines YAML frontmatter, a Markdown body, and structured request blocks. Requests decompose into blocks for the endpoint, auth, params, and body, reused across files the way functions are.

Protocol support and workflow features arrive as plugins you install or remove.

• Protocols: REST, GraphQL, gRPC, and WebSockets, each a plugin, with a community catalog alongside.
• Imports: bring in Postman, Insomnia, and OpenAPI collections and generate native void files, one per request.
• Scripting: run JavaScript, Python, or shell scripts before a request and after a response.
• Stitch runner: batch-execute void files with glob patterns, stop on failure, variable isolation, configurable delays, and environment selection.
• Collaboration: review API changes through Git branches and pull requests, not a vendor's team workspace.
• Voiden Runner: a headless CLI on Node.js 18 or later runs the same files in a terminal, CI/CD, or cron.

Installers cover macOS, Windows, and Linux, with Homebrew, apt, snap, and a Nix flake as package manager routes, each with a beta channel. Since version 2.1.1 the Windows installer is signed through Azure Trusted Signing, so SmartScreen may warn while the build accumulates download reputation.