Work on your car with confidence.
Coming soon - join the waitlist and be first in.
The ultimate AI garage buddy for DIY car repair: plan, track, and execute your automotive projects with total confidence.
Meet Terni
That one friend who knows everything about cars
%20image%20mark%20with%20its%20Off-White_100%20visor%20filled:%20asleep%20Terni%20(Wake-up,%20198:422).%20--%3e%3cpath%20d='M273.579%200H0V216.98H226.165C252.256%20216.98%20273.579%20195.606%20273.579%20169.232V146.155H378.11V104.781L273.579%200ZM336.671%20117.144H116.864L87.7032%2087.6931L42.2071%2042.0883V29.231H261.52L273.634%2041.374L290.462%2058.4621H100.036L128.978%2087.6931H319.842L336.671%20104.781V117.144Z'%20fill='%232D3238'/%3e%3cpath%20d='M116.864%20117.144H336.671V104.781L319.842%2087.6931H128.978L100.036%2058.4621H290.462L273.634%2041.374L261.52%2029.231H42.2071V42.0883L87.7032%2087.6931L116.864%20117.144Z'%20fill-rule='evenodd'%20clip-rule='evenodd'%20fill='%23F5EFE5'/%3e%3c/svg%3e)
Your buddy for every project
Terni talks with you about your car and your project - showing possible paths, giving instructions, and step-by-step guidance whenever you need it.
Built on real automotive knowledge.
Tell Terni your make, model, and engine - whether it's a Toyota or a Porsche - and every answer is built around that exact car.
Not another general chatbot.
General AI tools guess. Terni is built for cars only, so you get answers you can actually use under the hood.
Your garage just got smarter
Too much information. Not enough direction.
Tell me your car and what you're working on. I'll help you figure out the next step.
Conflicting advice
Fifty forum threads, fifty different answers - and none of them about your car.
Losing track
Which bolts came off where? Which part did you order? Two weekends later, nobody remembers.
Wrong move
One bad call and you've wasted time, money, or a part you can't return.
Everything you need for your cars.
The garage is full of noise. I help you find the signal.
Diagnose your problem
Weird noise? Need a torque spec? Ask and get an answer for your car.
Track your progress
Break down big builds into manageable steps. Pick up exactly where you left off, every time.
Manage your garage
From daily driver to project car - your whole garage in one place.
Add by VIN
Scan or type your VIN and Terni loads your factory specs. Classic without a 17-digit VIN? Add it manually.
Plan & Track
See your build laid out step by step, updated as you work. Pick up exactly where you left off, every time.
Clear Options
There's always more than one way to do a job. Terni shows you the options and helps you pick the one that fits your budget, tools, and skills.
Step-by-Step
Guides built for your exact car and the tools you actually have.
Get the Right Parts
Parts lists cross referenced to your car, so you order the right thing the first time.
Adapts to you
Terni learns from your past projects and adjusts to your experience - more detail for first-timers, less hand-holding for pros.
What Carternity stands for.
Four principles behind every answer Terni gives - from a five-minute question to a full weekend rebuild.
01.Clarity
Complex technical info distilled into actionable steps.
02.Reliability
No guessing. Just the right specs, steps, and part numbers your car calls for.
03.Confidence
Take on the jobs you used to pay a shop for.
04.Progress
Always moving forward. No more stalled projects in the driveway.
Carternity is right there with you in the garage. From "where do I even start?" to the moment you step back, wipe your hands, and say:
Nailed it.
For people who'd rather understand their car than just pay someone to fix it.
Built for weekend wrenchers, restoration nuts, and everyday owners who'd rather do the job themselves.
Carternity is almost ready.
Leave your email and we'll tell you the day the app launches. No spam, just the launch news.