Quivr

Quivr is an open-source, cloud-based second brain designed to store and retrieve unstructured information. It can hold almost any kind of data, including text, images, and code snippets, and it is built with speed at the core so that finding something again is fast. Because it is open source, it is entirely free to use, and you are not locked into a paid SaaS plan. The product focuses on three things: storing and retrieving unstructured information, doing so quickly and efficiently, and keeping that storage secure and reliable. It suits anyone who wants a personal knowledge base they control.

- Store text, images, code snippets, and more in one place.

- Retrieve saved information quickly when you need it.

- Keep a personal, cloud-based knowledge base.

- Rely on fast search built for efficiency.

- Self-host an open-source tool you fully control.

- People who want a personal cloud knowledge base.

- Anyone juggling mixed notes, images, and snippets.

- Users who prefer open-source tools they can self-manage.

- Technical users comfortable running their own stack.

As an open-source project, setting it up and keeping it running is your responsibility, which assumes some technical comfort. The feature set is focused on storage and retrieval rather than a broad suite of extras. Self-hosting also means you own the security and backups of your data, so plan for that before you rely on it as your main knowledge base. Start with a small sample to confirm the output meets your expectations before processing the full batch. Free tiers and usage limits can change, so check the current rules on the official page before relying on it long term.