Used by arborists, anglers, firefighters, climbers, sailors, the military and scouts the world over, Knots 3D will quickly teach you how to tie even the most difficult knot!
Knots 3D is the original 3D knot-tying app, first released in 2011 and rated 4.9 by tens of thousands of users worldwide. Choose a knot app with care, as your safety may depend on it.
Accolades: - Google Play Editors' Choice - Winner of Google Play Best of 2017, Hidden Gem category - Included in Scouting Magazine's "Best Scouting Apps of 2016"
Watch each knot tie itself in 3D, slow it down, and turn it around until it makes sense. Browse by category or type, search by name, common synonym or Ashley Book of Knots (ABoK) number, or describe what you need the knot to do. Save your favorite knots for quick review.
Permissions: No internet or other special permissions required.
Features: - 241 knots in over a dozen categories, with new knots added regularly - No ads, no subscriptions and no in-app purchases. Ever! - Completely OFFLINE and self-contained. No additional downloads or internet access required! - Watch knots tie themselves and pause or adjust the speed of the animation at any time - Rotate knots in 360-degree, 3D views to study them from any angle with a swipe of a finger - "Scrub" over the knot with a finger to advance or rewind the animation - Mirror (left-hand) mode, zoom, and rotate the view to match how you hold the rope - Describe a task in your own words, like "tie a boat to a dock", to find the right knots for the job - High-res graphics with photorealistic rope textures - Dark mode and light mode - List, Card and Icon view options - Create your own custom categories to group knots, such as "Mastered", "Practice" or "Top Ten" - Add personal notes, links and your own search keywords to any knot - Share a knot link by text message, email, social media and more - ABoK numbers for cross-reference to The Ashley Book of Knots
7-Day Refund Policy: Try Knots 3D risk free for a week. For a refund, send the order number from your Google receipt to our support email address.
Includes the knots people look for most: Bowline, Clove Hitch, Figure Eight, Trucker's Hitch, Square Knot, Sheet Bend, Prusik, Taut Line Hitch, Cleat Hitch, Palomar Knot, Uni Knot, Double Fisherman's Knot, Alpine Butterfly, Monkey's Fist, Munter Hitch and many more.
Every knot comes with a description of what it is for and a list of common uses. Most also include the other names the knot goes by, strength and reliability notes, structure, related knots, ABoK numbers and history.
Available in 25 languages: Arabic, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian and Vietnamese
Categories: - Essential Knots - Arborist - Boating - Camping - Caving - Climbing - Decorative - Diving - Fire & Rescue - Fishing - Military - Neckties - Pioneering - Rope Care - Scouting - Theatre & Film
Knots 3D is a learning reference. Learn from a skilled instructor if you plan to use ropes or knots in a situation where failure could cause property damage, injury, or death.
Learn to tie over 240 knots in 3D!
Updated on
Oct 6, 2026
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Ratings and reviews
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4.9
27.7K reviews
5
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No Funsies
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August 6, 2026
If your job or hobby involves ropes, get this app! It shows you not only how to tie, at any angle at and speed, but it gives you the uses and history too. I've used many knots not even related to my industry because I found them on this app.
12 people found this review helpful
Neal Baron
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September 18, 2026
This is so well designed and thought through with clear animations and useful options. I love this app for the fun of tying knots and the pleasure of its instructions. The simple descriptions for a knot's purpose, usage, and its heritage are an added useful and pleasurable component. Colors and patterns make following a knot's path easy to trace, as does the ability to speed up or slow down the animations. Well done!
8 people found this review helpful
Nynix LLC
September 19, 2026
Thank you so much for your review! Glad you find the app useful!
Rinalds
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July 29, 2026
Quite useful, but many useful modern knots are missing e.g. shoelace knots, and also some general information is missing like what rope types there are for example. The knot finder is also weird, because you just search keywords and it barely works, and mostly suggests random knots. Also the knot tying view – it's meh. It gets the job done mostly, but you can't check behind the rope in 3D to check if it's being currently tied correctly until it's tied. So why then is this a 3D app, more like 2D
8 people found this review helpful
What’s new
v11.7.0 - Improved search - Performance and stability updates v11.6.0 - 16 new knots (241 total) - New Mats knot type - Improvements to search - Updated knot names, synonyms, descriptions and histories - Minor bug fixes