Lock In — Focus & Reset Companion

Stop scrolling, start studying. Lock In is a focus tool built for students who know they procrastinate and want something that actually helps.

At its core is a clean focus timer with three modes — 25/5, 50/10, and a low-effort 15/3 for the days you can't get started. A glowing progress ring, a soft chime when each block ends, spacebar to start, and a counter that tracks how many blocks you've crushed today.

But focus isn't just about willpower. When the panic hits before an exam, switch to Breathe for a guided box-breathing exercise, or Ground yourself with the 5-4-3-2-1 method therapists actually use. Not sure where to start? The Check-inasks how your brain feels right now and tells you exactly which block length to run — or sends you to breathe first if you're spiraling.

One file. Works on any device. No app, no signup, no subscription. Built on real, evidence-based techniques.

• ⏱ Focus timer with 3 presets + progress ring + completion chime
• 🫁 Guided box breathing for nerves
• 🌿 5-4-3-2-1 grounding for overwhelm
• 🧠 Smart energy check-in that picks your block for you
• 📱 Fully responsive — phone, tablet, laptop
• 🎨 Single HTML file, instantly yours to use

Lock In is a self-help and study tool, not a medical device or treatment.