Knife Identifier – Identify Any Knife by Photo
Found a knife you can't place? Upload a photo to identify its type, blade style, and where to find maker's marks.
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Supports JPG, PNG, HEIC formats up to 10MB. Your images are processed securely and not stored.
How to Identify a Knife
Three quick steps to an instant, AI-powered identification.
Photograph the whole knife with the blade open, plus close-ups of any stamps or logos on the blade (the tang) and handle.
Our AI reads the blade shape, lock or folding mechanism, handle material, and any visible marks to estimate the type and style.
Receive the likely knife type, blade style, and where to look for tang stamps and logos that pin down the maker.
Other Ways to Identify a Knife
Read the Tang Stamp
The stamp on the blade near the handle usually names the maker and sometimes the era — the fastest route to a precise ID.
Blade & Lock Style
Blade grind and the folding or fixed mechanism place a knife into a category even without a legible mark.
Collector Forums
Knife-collecting communities identify vintage and custom knives from clear photos of the blade and stamp.
Photo Quality
- ✓Shoot the whole knife open, blade fully visible.
- ✓Take a macro shot of any tang stamp or handle logo.
- ✓Show the blade profile and edge grind clearly.
- ✓Use even light and avoid glare on polished steel.
Best Practices
- •Include a scale reference for blade length.
- •Photograph both sides of the blade and handle.
- •Capture the lock, bolsters, and pins for folders.
- •Note the handle material (bone, wood, synthetic).
Knife Types Our AI Recognizes
Our AI recognizes a wide range of types — here are some of the most common.
Everyday folders and multi-blades.
Full-tang and hunting knives.
Culinary blades by shape and use.
Combat and utility service knives.
Older knives identified by pattern and stamp.
Regional blade styles from around the world.
Why Choose IdentifyThis?
Fast, detailed, private, and affordable — for this and every other identifier.
IdentifyThis works entirely in your browser on any device — phone, tablet, or desktop. No installs, no clutter, just instant results.
You don't just get a name. Our AI explains the key features, common look-alikes, and what to do next, so you actually understand what you're looking at.
Your subscription unlocks plants, animals, insects, rocks, and dozens of other identifiers — not just this one. One affordable tool for every curiosity.
Your uploaded photos are processed for identification and are not stored or sold. What you photograph stays yours.
Your first identification is free, then unlimited access is just $6.99/year — a fraction of what single-purpose apps charge.
Because it's web-based, IdentifyThis runs the same on iPhone, Android, Windows, and Mac. Open your browser and go.
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