Knots 3D

Nynix LLC

Knots 3D app icon
4.9 stars29,432 reviews1,000,000+$5.99
Books & ReferenceEveryoneVersion 11.7.0Updated 10/5/2026, 11:10:46 PM
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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

Types:
- Bends
- Binding
- Coils
- Friction Hitches
- Hitches
- Lashings
- Loops
- Mats
- Multi-Loop
- Quick Release
- Stoppers
- Whippings

The complete list of knots:

https://knots3d.com/en/complete-list

Missing a knot? Suggest one from inside the app.

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.
Developer email
app_support@nynix.com
Developer website
https://knots3d.com
Released
Jan 7, 2012
Current version
11.7.0
Android version
7.0
Reviews & Ratings
4.9
out of 5
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🌟 Loved by users
29,432 reviews

Screenshots

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