“You can never have too many keychains”, a wise man once said. Now, we may not have plenty of evidence as to the accuracy of that quote or the actual whereabouts of the wise man, but we’re confident that your keys (or your friends’ keys) would welcome some of these beautiful 3D printed models to keep them together.
Unfortunately, you can’t fit all of these great designs into one keychain; we tried.
Whether you’re interested in printing one as a gift, adding one as a cute accessory for your keys, or even just creating something practical and useful, we’re sure you’ll find something you like in our list. And if you find the perfect keychain but don’t have a 3D printer lying around, get a quote from Craftcloud by All3DP. You’ll have plenty of choices of material and color, and your keychain will be delivered right to your doorstep!
Without further ado, let’s check out our top picks for the best 3D printed keychains!
Dual-Purpose
Our first picks are for all the multitaskers who want their keychain to do more than just hold their keys. From a smartphone stand to a super-loud whistle, these keychains will work hard for their place in your pocket.
Smartphone Stand
This set of 3D printed animal keychains not only looks adorable, but it can also double as a stand for your phone. From dogs and cats to dragons and hippos, there are plenty of models to choose from. Print one, or print all of them!
Given the size and detail of the models, the designer recommends using a 0.1-mm layer height and 10% infill.
- Who designed it? Shira
- How printable/popular is it? There are 617 makes (and counting) for these keychains, and the files have, on average, over 370,000 downloads just from Thingiverse!
- Where to find it? Thingiverse, Cults, MyMiniFactory, Printables
Screwdriver
This keychain allows you to seamlessly add a small screwdriver to your keychain, so you can keep your tools close at hand for repairs on the go. As noted by the creator, there are two different versions available. The “Screwdriver.stl” is a bit holder that permanently holds a bit in the socket with the help of glue. The “Bit_Holder.stl” has a small magnet in the base, allowing for quick swaps.
With this keychain, you can add different types of screwdriver bits, depending on your needs. This can really come in handy if you don’t have access to a full-size screwdriver, and it allows you to carry around a mini screwdriver anywhere you bring your keys.
- Who designed it? AntonFalck
- How printable/popular is it? With over 15,000 downloads, 7 makes, and 2 remixes, you can easily print this keychain for yourself.
- Where to find it? Thingiverse
Airtag Holder
This simple keychain lets you add a holder for your Apple Airtag to your keychain. Compact and strong, the holder will keep your device securely in place, ensuring you can find your keys if you happen to lose them. The metal cap is also accessible if you need to change the battery.
This Airtag holder prints in one piece and doesn’t require supports. The designer recommends using PETG or PLA filament and a standard 0.2-mm layer height.
- Who designed it? tdroze
- How printable/popular is it? So far, this model has over 2,200 downloads, 12 community makes, and 1 remix.
- Where to find it? Thingiverse
Mustache Bottle Opener
This mustache 3D printed keychain, which also doubles as a can opener, is a must-have! Simple to print and classy on your keys, you’ll never have to worry about popping those caps off again.
These mustaches are super easy to print. We recommend using no less than 60% infill for good strength (100% would be even better). There’s no harm in a large layer height for this model, in fact it could even add extra strength, so it should be quick to print.
- Who designed it? BeeVeryCreative
- How printable/popular is it? There are over 2,500 downloads for this design so far combined from both sites, and 2 makers have shared their prints on MyMiniFactory.
- Where to find it? MyMiniFactory, Cults
Whistle
This is a very popular design of a functioning whistle. Although, you have to take care to avoid disturbing the peace when wielding its immense power (your neighbors might not enjoy your new creation).
On a more serious note, this keychain can be used as a distress signal, which is always a nice thing to have, especially if you tend to stray from the beaten path.
This is the 29th version of this design, which says something about the efforts put into perfecting it.
- Who designed it? Tanleste46
- How printable/popular is it? The files have over a million downloads from both sites, and more than 1,400 makers have shared their prints.
- Where to find it? Cults, Thingiverse
Key Fob Container
Whether to stow away emergency cash or to keep medication on hand, these thin, practical containers fit onto your key bundle for easy and convenient access. Be sure to check out the various shapes and sizes provided in the project files to choose your favorite.
The designer printed the models using a 0.2 mm layer height, 75% infill, and a raft. It’s worth keeping in mind that the screw threads may pose a challenge for some printers.
- Who designed it? muzz64
- How printable/popular is it? This model’s got around 38 makes and more than 37,000 downloads combined across the different sites.
- Where to find it? Thingiverse, MyMiniFactory, Cults
SD Card Holder
This is a handy and practical SD card holder that will always stay within reach, assuming your keys do.
It’s easy to imagine how this design in particular would be of great interest to all the 3D printing enthusiasts out there – no more searching around for these tiny little devils everywhere!
This 3D printed keychain was originally intended for ABS, but a maker has shared a remix meant to be printed in PLA.
- Who designed it? Dranoweb
- How printable/popular is it? There are 61 makes and 26 remixes shared of this design.
- Where to find it? Thingiverse
Pop Culture
If you don’t need your keychains to work double-time as practical accessories, you may prefer the following fan-favorite designs inspired by movies and games.
Harry Potter Deathly Hallows
Show off your love for the Harry Potter series with this Deathly Hallows keychain. True Harry Potter fans will remember this sign from the seventh book, which depicts three magical objects: the Elder Wand, the Resurrection Stone, and the Invisibility Cloak.
This model should be a breeze to print and doesn’t require any supports. It will be on your keychain in no time!
- Who designed it? MisterrDragon
- How printable/popular is it? This magical model has over 13,000 downloads and 4 makes shared from the community.
- Where to find it? Thingiverse
Minecraft Tools
These keychains are perfect for Minecraft fans to add to their inventory. The set includes a sword, pickaxe, and shovel from the game.
Since they are flat and pretty simple models, they shouldn’t require any supports or complicated print settings. The creator notes that they will fit a 5/8-inch split key ring.
- Who designed it? GSAMakerspace
- How printable/popular is it? This popular keychain has over 150,000 downloads, a whopping 115 makes, and 11 remixes.
- Where to find it? Thingiverse
Blades of Chaos
This is a wonderful design for gamers, especially those fans of the God of War series: These are the Blades of Chaos.
The creativity and detail of this design are incredible; it’s impressive both in concept and execution. It features the Blades of Chaos that were wielded by the God of War himself – Ares – in keychain format.
The author cut the model down the middle for easy printing. Creators can simply glue the two halves together after printing, then paint them to their liking.
While the original design was printed in resin, makers have shared prints in PLA.
- Who designed it? 3DPrintDogs
- How printable/popular is it? This design’s been downloaded over 10,000 times from both sites, with 5 shared makes on Thingiverse.
- Where to find it? Cults, Thingiverse
Baby Groot
For some reason, out of all our favorite characters, Baby Groot has always had a special place in our hearts, so we had to look for some keychains.
Part of the enthusiasm was due to the fact that we were curious about how the designers would approach such a beautiful character design, and we weren’t disappointed with what we found.
If you’re not up for the paint job, you can always opt for wood PLA filament for a cool effect.
- Who designed it? kresty
- How printable/popular is it? 40 makes and 7 remixes mean that there are quite a few Groots out there, keeping keys together.
- Where to find it? Thingiverse, Cults
Pac-Man
Ah, the nostalgia! We just had to include something from the good old times. What’s a better way to do that than Pac-Man?
Due to its shape, the designer recommends both a raft and supports for best results.
- Who designed it? 2be3d
- How printable/popular is it? This classic model’s been downloaded over 4,200 times from both sites.
- Where to find it? Cults, Thingiverse
Captain America's Shield
There are plenty of Avengers-themed projects out there, but not all of them are as beautiful and detailed as this design right here.
The creator decided to make this one out of five separate pieces, which means it’s trickier to print and assemble to perfection, but the end result is impressive – and you get to avoid the painting and can just print each part in its corresponding color.
Due to the curved shape of the model, the designer recommends using the lowest possible layer height and slow speeds. For reference, the model above was printed using a 0.06 mm layer height.
- Who designed it? DanielJosvai
- How printable/popular is it? This impressively detailed design has over 2,800 downloads.
- Where to find it? Cults
Fidget Keychains
A good keychain is always “fidget” friendly in a way; it keeps your hand and fingers occupied for those daydreaming moments. It’s not always impatience or nervousness; sometimes a person just wants to fidget, and non-fidgeters wouldn’t understand.
If you’re a fidget spinner fan, this is a collection of maximum fidget-friendliness that you’ll enjoy.
Turbine
This is a beautiful design of a two-piece turbine. No external accessories are needed: just press the turbine blades into the casing, and it’s good to go. Of course, you can always add some grease or a drop of oil to make it run more smoothly.
Successful makers mentioned that they didn’t need a raft or supports, and PLA has worked well for plenty.
- Who designed it? Umake
- How printable/popular is it? 55 makes have been shared for this model so far.
- Where to find it? Thingiverse
Gyro
Here’s another 3D printed keychain that can double as a toy: the gyro keychain. The concentric rings spin around the center without falling out, in a simple yet mesmerizing way. Inspired by the real-life gyroscopes used in navigation systems, this mini gyro requires no assembly and pops off the plate ready to go.
The designer recommends a 0.2 mm layer height and 0% infill.
- Who designed it? Jangles1981
- How printable/popular is it? 63 makes and 6 remixes show the design’s printability and fidget-ability.
- Where to find it? Thingiverse
Gear Chain
This next one is a nice design of a little gear chain. Turning the smaller gear moves the other two, bigger gears. Its beauty lies not only in the color combinations you can make, but also in its simplicity. This is another great piece for your fidgeting pleasure.
It requires additional nuts and bolts to secure everything in place and may also require some additional work to remove excess filament from some areas for smooth operation of the gears. But whatever hassle’s involved, we think it’s worth it.
While the designer opted for ABS, other makers have posted their successful prints in PLA, PLA+, and PETG.
- Who designed it? evaken
- How printable/popular is it? This is a pretty popular design, with 29 makes and 2 remixes shared.
- Where to find it? Thingiverse
Geared Fidget Bolt
This piece is “perfect for those boring lectures or office hours”, as advertised by the designer. It consists of two simple gears with a U-shaped bolt. When the gears turn, they move up and down the thread.
The designer recommends avoiding using a brim as it could lead to issues with the keychain’s functionality. They also suggest slower settings for better adhesion.
- Who designed it? LarkysPrints
- How printable/popular is it? Be sure to check out any of the 26 makes and 2 remixes for colorful inspirations.
- Where to find it? Thingiverse
Octopus
In this particular remix of a ball-joint articulated octopus, there’s a slot near the head where the actual keychain goes. The entire design is pretty creative and very fun to put together. You can choose how many tentacle segments to print to customize the length and overall size of the octopus, in addition to scaling it to your preferred size.
We absolutely recommend you play around with the colors on this one, given that there are so many different possible combinations. Some makers chose to play around with mixtures of different colors for the tentacle segments for maximum cuteness, others even chose to do it in glow-in-the-dark filament.
- Who designed it? Solid_Alexei
- How printable/popular is it? 63 makes and 6 remixes have been shared so far on both sites. Some users mentioned that they included supports, while others didn’t need them, so it’s up to you!
- Where to find it? Thingiverse, MyMiniFactory
Original Designs
If none of the previous options piqued your interest, we’re sure one of the next ones will! These models stand out, perhaps due to their artistic value, or sometimes because of the sheer originality and complexity of the design.
The following is a list of a few of the best, most popular, and original keychain designs out there.
Mini Filament
This cool keychain looks identical to a spool of filament, except it’s much smaller. It’s printed as several separate parts, so a printer that supports multiple colors in one print isn’t necessary.
You can choose your favorite filament color and attach it to your keychain. This keychain could also be used to help visualize the final result of what certain filament colors will look like. The designer even added a mini filament stand to store all your different spools.
- Who designed it? Pixelle (remix from CreativeTools)
- How printable/popular is it? This popular model has 144 makes, 15 remixes, and over 76,000 downloads.
- Where to find it? Thingiverse
Kitty
This kitty-themed keychain isn’t just cute – holding it can also help you feel a bit more confident if you’re on your own.
Just be aware that if your printer is capable of getting the ear points sharp, this model can actually cause some damage, so be careful! The designer recommends opting for PLA or ABS, as well as using 70-90% infill.
- Who designed it? Dreidk
- How printable/popular is it? The design has over 1,800 downloads and 16 makes combined from all sites.
- Where to find it? MyMiniFactory, Cults, Printables
Swiss Army Knife-Style
This remix of a Swiss Army Knife is meant to make it easier to open the items held inside. Although this design requires three bolts and nuts, it’s still simple to assemble and very functional. You can hold all your keys compactly in one place.
There’s also an OpenSCAD file included with the project, so you can change a few details to your liking.
- Who designed it? markbenson
- How printable/popular is it? 89 makes and 9 remixes show this design’s popularity.
- Where to find it? Thingiverse
Fish Fossilz
Here’s a fun, cute, little fish that wriggles and bends around. Dubbed “Fish Fossilz” by the designer, this is a very nice design that seems simple but was clearly carefully designed and makes a perfect keychain!
The designer included two files, one with the keychain slot in the tail of the fish and other with the slot in the head, so you can choose which you’d prefer.
- Who designed it? muzz64
- How printable/popular is it? Close to 1,000 makes reflect the design’s popularity.
- Where to find it? Thingiverse, MyMiniFactory
Origami Carabiner
This one is a classic: an origami-inspired, practical design. You never know when these carabiners may come in handy. 3D printed in two parts, these hooks can carry keys, light bags, or even other keychains.
The designer suggests printing in either PLA or ABS, with at least 50% infill. The model doesn’t require supports or a raft.
- Who designed it? Charlie1982
- How printable/popular is it? There are 626 makes and counting.
- Where to find it? Thingiverse
Retractable Planetary Gears
Perhaps you’re into more complex trinkets, and you’d like an intricate piece of keychain ingenuity. Maybe you just like retractable keychains. If so, then this next beauty is for you.
This is a retractable keychain (that can also serve as a badge holder), with moving planetary gears. It can’t get cooler than this.
- Who designed it? pyromaniak
- How printable/popular is it? This one is fairly popular with over 2,100 downloads so far.
- Where to find it? Cults
Customizable Text
Our final keychain design is both interesting and useful. These are customized text keychains; you input the text you want, and the program generates an STL file for you to print. It’s a very simple process that includes using OpenSCAD to rewrite the supplied file. Alternatively, you can download one of the many previously generated name-designs out there.
These versatile keyrings can be gifts, giveaways at your small business, or even customized party invitations. And the best part? They’re easy to print, with a 0.2-mm layer height, 20% infill, and no supports needed.
- Who designed it? iamburny
- How printable/popular is it? Between version 1 and version 2, this project has almost 50 makes and over 28,000 remixes.
- Where to find it? Thingiverse, Printables
License: The text of "3D Printed Keychain: 25 Best Keyrings to 3D Print" by All3DP is licensed under a Creative Commons Attribution 4.0 International License.