Raindrop.io

Raindrop.io provides a web‑based system for saving, organizing, and synchronizing bookmarks across devices. Users can group links into collections, assign tags, and apply filters to locate items by type, domain, or keyword. The service also detects duplicate entries and broken URLs, offering tools to clean up a library.

The interface shows key information at a glance and supports multiple view modes, including grid, list, and masonry. Content can be previewed instantly, and full‑text search indexes the entire body of saved web pages and PDFs. Annotations and highlights let users mark important passages for later reference.

Collaboration features allow sharing of collections with teammates, family, or the public, with permission controls to manage access. Backups are created automatically, and copies can be stored in external cloud drives. The platform runs on a secure, cloud‑based architecture and is available for free with unlimited bookmarks and devices.