Most people don't keep tabs open because they need them right now. They keep them open because they're afraid they'll forget why they opened them in the first place. Fillr uses AI to understand how you're using your browser and turns scattered tabs into organized workspaces you can save and reopen anytime. Instead of hundreds of forgotten tabs, save complete browser workspaces and come back to them whenever you're ready. Built for people who use their browser as an external brain.