Every site blocker makes you maintain a list of "bad" sites. That list never ends. Lockby flips the model. Pick the 1-3 domains you need for your current task, set a timer, and everything else disappears. Non-whitelisted tabs get killed before the page loads. No loopholes. Want to quit early? You have to type a full sentence and wait 5 seconds. It's a speed bump between impulse and action. Built for ADHD brains and chronic tab-openers Works on Chrome, Edge, Brave, and Arc.
Hey Product Hunt -- I'm the maker of Lockby.
I have ADHD, and I've tried every focus tool out there. They all work the same way: block the "bad" sites. But the internet is infinite. There's always another rabbit hole, and the blocklist never ends.
So I flipped the approach. Instead of blocking what's bad, Lockby locks the browser to only what you need right now. Pick your domains, set a timer, everything else is gone.
A few things that were important to me when building this:
- Privacy-first -- all session data stays in the browser. No URLs ever leave your machine.
- Free is real -- 3 sessions per day, up to 45 min, no account required, no credit card.
- Intentional friction -- quitting a session requires typing a sentence and waiting 5 seconds. It's a small speed bump that stops impulse from winning.
I'd love to hear your feedback -- what would make this more useful for you?
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About Lockby on Product Hunt
“Lock your browser to only the sites you need”
Lockby was submitted on Product Hunt and earned 1 upvotes and 1 comments, placing #142 on the daily leaderboard. Every site blocker makes you maintain a list of "bad" sites. That list never ends. Lockby flips the model. Pick the 1-3 domains you need for your current task, set a timer, and everything else disappears. Non-whitelisted tabs get killed before the page loads. No loopholes. Want to quit early? You have to type a full sentence and wait 5 seconds. It's a speed bump between impulse and action. Built for ADHD brains and chronic tab-openers Works on Chrome, Edge, Brave, and Arc.
Lockby was featured in Chrome Extensions (52.6k followers), Productivity (649.7k followers) and Ad Blockers (4.1k followers) on Product Hunt. Together, these topics include over 138.8k products, making this a competitive space to launch in.
Who hunted Lockby?
Lockby was hunted by Quentin Fontenay. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Lockby stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Quentin Fontenay