15 Amazing 3D Printed Keychains You Need to Try

Keychains are perfect for 3D printing. They're small, use little material, and print fast.

When you make your own 3D printed keychain, you get something that matches what you love. It might show off your favorite game, hobby, or just look cool.

We found 15 3D printed keychain designs that stand out from the rest. Let's look at them together!

Ratcheting Mini Screwdriver

Someone told the creator they could not fit a ratchet into a tiny screwdriver. They took that as a challenge!

This 3D printed keychain is a real working screwdriver with a clever design.

Just flip it to change directions, since it has sockets on both ends. The 30 degree ratchet works both clockwise and counterclockwise, making this tiny tool surprisingly useful.

Keep it on your keychain and you will always have a tool ready when you need one.

Source: FreddyZ

Download this 3D Printed Keychain STL File

Rotating Keychain Display

Ever get tired of digging through your pocket for the right key? This rotating keychain display solves that problem with style.

The gray stand has arms sticking out in all directions with notches to hang keychains.

You can load it with all your colorful creations. The center pole lets the whole thing spin so you can see all sides easily. It's perfect for showcasing your collection or displaying items if you sell 3D printed keychains.

For best results, print this 3D printed keychain in a durable material like PETG or ABS since it will see daily mechanical stress.

Source: NickR1983

Download this 3D Printed Keychain STL File

Customizable Key Holder

This two color key holder looks good and works well. You can use it as is or make it your own by changing the inserts.

This 3D printed keychain keeps your keys neat. They won't jingle in your pocket. You can add your name, phone number, or a short saying to make it yours.

It looks fancy when printed in two colors. The holder keeps keys tidy but easy to get to when you need them.

Try printing the outer shell with slightly bendy filament. This makes it easier to put keys in and take them out.

Source: Justin

Download this 3D Printed Keychain STL File

Flexi Rex Keychain

Who doesn't love a dinosaur that can move? This 3D printed keychain is a small version of the famous bendy T Rex.

It prints as one piece but bends after printing. Kids love to play with it. Adults find themselves fidgeting with it during calls. It shows off what 3D printing can do.

The small dino moves just like the bigger model. The joints work right away with no extra steps. The neck and tail bend in a way that looks real.

Print this 3D printed keychain slowly to make sure the joints form well. PLA works fine, but TPU makes an even bendier dino.

Source: MK Design

Download this 3D Printed Keychain STL File

Minecraft Tools with Keychain Hole

These tiny Minecraft tools look just like the ones in the game. You get a sword, pickaxe, and shovel. Each has a hole so you can put it on your keychain.

These 3D printed keychains match the blocky style of Minecraft. Anyone who plays the game will know what they are right away.

You can make them even better with UV printing. Check out the video below to see how the magic happens.

Source: Nikolaus

Download this 3D Printed Keychain STL File

Cheese Keychain

Sometimes the simplest ideas are the best.

This 3D printed keychain looks like it came straight from a cartoon, complete with perfectly placed holes! It's a fun way to add some personality to your keys.

Source: THop3D

Download this 3D Printed Keychain STL File

Filament Key Chain

This clever keychain looks like a tiny spool of 3D printer filament. It's a small version of the spools we all have by our printers.

This 3D printed keychain is fun because it's about 3D printing itself! It has all the details of a real spool, from the center hole to the sides and even tiny strands of filament.

Print it in the same color as your favorite filament. Some people print many in different colors to match their filament stash. It's a subtle way to show you're into 3D printing.

It prints fast but still shows nice details. It makes a great gift for other maker friends.

Source: Zdrapek

Download this 3D Printed Keychain STL File

Customizable Name Keychain

Why buy a boring keychain when you can print one with your name on it? This model lets you make a custom 3D printed keychain in just minutes.

It looks clean and nice, with options for different text styles. It works great for gifts, sorting keys, or adding a personal touch. You can add more than names. Try phone numbers, short quotes, or inside jokes.

Try making these in different colors for family members. Schools and clubs can make matching ones for group members.

Source: rmfms

Download this 3D Printed Keychain STL File

Retro Cassette Keychain

Miss the old days? These cassette tape keychains bring back the 80s. The design has all the details of a real tape, from the spools to the label area.

This 3D printed keychain mixes old school cool with daily use. The cassette is small enough to carry but detailed enough to look real. It starts fun talks with other people who grew up with tapes.

If your printer can use two colors, this is a great model to try. Print the body in one color and details in another. Some makers add tiny paper labels for extra realism.

Source: ncsandor

Download this 3D Printed Keychain STL File

Mini Keychain Pill Box

These clever pill boxes attach right to your keychain.

They're tiny, about the size of a coin, but big enough to hold emergency medicine. The screw-top design keeps pills safe and dry. Perfect for carrying daily meds or just-in-case pills.

The smart part is how well they work. The threads on the lid match perfectly with the base for a secure close that won't pop open in your pocket.

Source: DrJones

Download this 3D Printed Keychain STL File

Cute Mothman Keychain

Who says scary things can't be cute? This Mothman keychain turns the famous monster into a pocket sized pal.

This 3D printed keychain is great for fans of myths, monsters, or just weird stuff. It keeps the key Mothman features but makes him cute. The big eyes and tiny body make him look friendly.

It stands out because most keychains are boring. How many people have a cute Mothman on their keys? It starts fun talks about myths and legends.

Source: Nolan3D

Download this 3D Printed Keychain STL File

Snake Keychain

These amazing snake keychains actually bend and move. You can make them in different colors to match your style.

Each snake is made of connected segments that move like a real snake. The whole thing prints in one piece, but after printing, the joints break free and can wiggle. The keyring attaches at the head.

The maker designed it to print standing up for a nicer finish. After printing, just remove the brim and break the weak links. The hidden joints stay intact and work well.

Source: Cisco3D

Download this 3D Printed Keychain STL File

Heart Gear Keychain

Love meets tech in this heart gear keychain. The gears fit together to form a heart shape, and they really turn!

First made for wedding favors, this 3D printed keychain blends emotion with clever design. It’s a perfect wedding gift or a thoughtful 3D print for Valentine’s Day.

The gears might feel a little xstiff at first but get smoother as you use them. When you turn one, they all move together in sync.

Print with thin layers so the gear teeth form right. A drop of oil helps if the gears are stiff.

Source: AntOfGods

Download this 3D Printed Keychain STL File

Keychain Anchor

This bright anchor keychain really stands out. The clean design looks great in any color, though bright colors make it easier to find in your bag.

The anchor shape is simple but instantly recognizable. The top loop connects smoothly to a metal keyring, making it sturdy enough for daily use.

It's a fun nautical touch that adds personality to your keys. Try printing it in blue or green for a classic sea theme, or go bold with bright colors.

Source: Neelix

Download this 3D Printed Keychain STL File

Rotating Brake Disc Keychain

Car lovers will enjoy this brake disc keychain. It has a real spinning brake rotor with a caliper and pads.

This 3D printed keychain stands out because it moves. The brake disc spins inside the caliper, just like on a real car. It's a tiny working model that fits in your pocket.

The details are spot on, from the holes in the rotor to the shape of the caliper.

Source: Jerryie

Download this 3D Printed Keychain STL File

5 Tips for Printing Better Keychains

Want to make great 3D printed keychains? Keep these tips in mind:

1. Make the keyring hole strong. This part gets pulled on a lot. Make sure the hole has thick edges.
2. Use more infill. Since keychains are small, using 50% or even 100% infill won't waste much plastic but makes them much stronger.
3. Layer height makes a difference. For detailed keychains, use thin layers (0.1mm). For simple ones, thicker layers (0.2mm) work fine and print faster.
4. Print direction matters. Place your keychain so the key ring hole is strongest along the layers, not between them.
5. Pick the right plastic. PLA is easy to print with, but PETG and ABS last longer in your pocket and won't melt in hot cars.

3D Printed Keychain FAQs

What's the best plastic for keychains?

PLA works well for most keychains. It's easy to print and shows good detail. For stronger keychains, try PETG or ABS. For bendy ones like the Flexi Rex, use TPU. Shiny or metallic filaments make keychains look fancy.

Where can I find keychain models to print?

Most of these keychain designs are available on popular model sharing websites. Look for sites that offer free STL files with good user ratings. The best platforms let you see previews, read comments, and check how many times a model has been downloaded and printed successfully.

How do I design my own custom keychain?

To make your own 3D printed keychain, start with easy software like Tinkercad. Begin with basic shapes. Make the keyring hole at least 3mm thick around the edges so it's strong.

If you want to create something truly unique, learn how to create your own STL files using beginner-friendly 3D modeling programs.

Can I sell the keychains I print?

It depends on each model's rules. Some makers allow selling, others don't. Always check the license info on the model page before selling. Most allow personal use, but selling may need permission.

If you're interested in starting a small business, check out our guide on profitable 3D printed products to sell online.