Focus
without
compromise.

Locus locks you in. Whitelist-based app & URL blocking, Notion-powered sessions, and an AI that decides if your excuse is good enough.

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Try it live Interactive demo โ€” no install required
Everything you need
to actually focus.

No more half-measures. Locus goes further than other focus apps โ€” it's a system, not just a timer.

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Whitelist-based App Blocking

Anything not explicitly on your allowlist is blocked for the duration of your session. No exceptions.

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URL Filtering

Domain-level blocking across Chrome, Safari, and other browsers. The web stays locked until you're done.

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Notion Integration

Sign in with Notion and your sessions auto-populate from your planner database. Start working in one click.

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AI-Evaluated Unblocks

Need to access a blocked site? Write your reason and an LLM decides if it's actually on-task. No more loopholes.

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Per-Activity Profiles

Different allowed apps and domains per class or task type. Your CS session looks nothing like your English session.

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Override Code

Configurable code required to end a session early. Set it somewhere annoying and actually finish what you started.


Your excuses get graded.

When you try to access a blocked site, you have to explain why. A language model reads your reason and decides โ€” based on what you said you're working on โ€” whether to let you through.


No more opening YouTube "just for a second." Either your reason is legitimate, or the door stays shut.

I need to access YouTube โ€” I'm looking for a lecture on cellular respiration for my bio notes.
Your session goal is "AP Bio โ€” cellular respiration notes." A lecture video is directly relevant to this task.
โœ“ Access granted โ€” 10 minutes

See where your time actually goes.

Track focus time per session, blocks triggered, and completion rate over time. Locus gives you data to reflect on โ€” not just a timer to ignore.

AP CS3h 20m
Honors Bio2h 05m
English Essay1h 40m
World History0h 55m
18
Sessions
7
Blocks hit
94%
Completion

Different task,
different rules.

Configure unique app and URL allowlists for each class or task type. Coding sessions get your IDE and docs. Writing sessions get nothing but your word processor.

AP Computer Science
6 apps ยท 12 domains
CS
Honors Biology
3 apps ยท 8 domains
Bio
Deep Focus
1 app ยท 2 domains
Focus

Help make Locus better.

Built by Karman. If you have ideas, bugs, or complaints โ€” send them here.

โœ“ Thanks โ€” feedback received!