Volt is a complete API development toolkit in a single ~4 MB binary. Built from scratch in Zig with zero dependencies. Plain-text .volt files live in your git repo — no account, no cloud, no telemetry, no Electron. Requests, testing, mocking, load testing, import/export, a web UI — everything Postman does in 1/100th the size. Starts in <10ms, uses 5 MB RAM. Import from Postman/Insomnia/OpenAPI in one command. Export to 18 languages. Built-in CI/CD with JUnit reports.