BightSize

Now with a full knot quiz, practice tracker, daily knot, favorites, and over 90 step-by-step knots across boating, climbing, fishing, camping and more.

Tie better knots. Anywhere. Anytime.

BightSize is a pocket-sized knot handbook that turns reading into doing. Whether you're rigging a boat, setting an anchor, fishing a leader, pitching a tarp, or just tying down a kayak, BightSize gives you clear step-by-step instructions and the practice tools to actually remember them.

Over 90 knots, organized for real life

Browse curated categories built around how people actually use rope: • Boating — bowlines, cleat hitches, anchor bends • Climbing — figure eights, prusiks, autoblocks • Fishing — improved clinch, Palomar, FG knot • Camping & Scouting — taut-line, trucker's hitch, lashings • Survival & Rescue — rescue loops, tensionless hitches, Z-drags • Rigging & Work — scaffold, icicle hitch, lineman's loop • Everyday & Decorative — square knot, monkey's fist, paracord weaves

Designed to help you learn, not just look things up • Step-by-step instructions for every knot, broken into clear numbered actions • A 10-question quiz with per-category best scores to test what you actually know • Practice tracker with daily streaks — log a knot every time you tie it • Daily "knot of the day" so you're always learning something new • Favorites and recently viewed knots for quick access in the field • Fast search across the entire library

Built for the real world • Works completely offline — no signal needed on the trail, on the water, or at the crag • No account, no sign-up, nothing to set up • No ads, no tracking, no analytics • All your data, favorites, practice log, quiz scores stays on your device