Desktop app for Mac, Windows & Linux
TagKB pulls tags from Raindrop, Fastmail, and more into one curated taxonomy. Fully local. Read-only. Your data never leaves your machine.
No credit card required.
You tag things everywhere. None of it connects.
Bookmarks in Raindrop. Emails in Fastmail. Notes in Obsidian. Each tool has its own tags, its own hierarchy, its own mess. You end up with project-x in one place and Project X in another.
One canonical taxonomy. All your tools feed into it.
TagKB imports tags from your tools, lets you merge and organise them, and keeps everything in sync. It never writes back — your source tools stay untouched.
Three steps. No configuration hell.
Paste an API key for Raindrop, Fastmail, or install a plugin. Tags start importing immediately.
Review imported tags. Merge duplicates. Build a clean hierarchy. Keyboard-driven for speed.
TagKB syncs in the background. New items land in your review queue, pre-tagged and ready.
Built for people who organise things properly.
Your data stays on your machine. No cloud sync, no server storage. SQLite database you can back up yourself.
Raindrop and Fastmail built in. Install community plugins for Notion, Pocket, Obsidian, and more.
TagKB imports tags but never writes back. Your source tools remain exactly as they are. Zero risk.
Keyboard-driven review interface. Triage new items and tag them quickly. Works like an inbox for your knowledge.
30-day free trial. $20/year after that. Works on Mac, Windows, and Linux.
Start free trial