not-th.re

Not-th.re is a URL shortening service built for developers who need simple, programmable link management. It provides a clean API for creating, updating, and deleting shortened URLs, along with support for custom aliases and optional TTL-based expiration. The tool is designed to be lightweight and privacy-respecting, with no unnecessary tracking or analytics.

The service is fully open source under the MIT license, with the main repository hosted on GitHub. It offers a web interface for quick manual shortening, but the real power lies in its RESTful API, which returns JSON responses and supports authentication via API keys. Developers can integrate it into workflows for sharing temporary links, redirecting traffic, or building custom URL manipulation tools.

Not-th.re is ideal for developers who want to self-host their own URL shortener or use a public instance with minimal overhead. The project is maintained by the Not Three community and is free for personal and commercial use. As an open source tool, it can be deployed on any platform that supports Node.js and a database.