Free CDL Practice Tests & Study Guides
Everything you need to pass your CDL and learn the job — free practice tests with instant scoring and answer explanations, driver tools like an hours-of-service calculator, and plain-English lessons. No sign-up. Based on the standard CDL manual.
📝 Practice tests
CDL General Knowledge Practice Test
Free CDL general knowledge practice test — no sign-up.
CDL Air Brakes Practice Test
Free CDL air brakes practice test — no sign-up.
CDL Combination Vehicles Practice Test
Free CDL combination vehicles practice test — no sign-up.
CDL Hazmat Practice Test
Free CDL hazmat endorsement practice test — no sign-up.
CDL Tanker Practice Test
Free CDL tanker endorsement practice test — no sign-up.
CDL Doubles/Triples Practice Test
Free CDL doubles/triples practice test — no sign-up.
CDL Passenger Practice Test
Free CDL passenger endorsement practice test — no sign-up.
CDL School Bus Practice Test
Free CDL school bus endorsement practice test — no sign-up.
CDL Pre-Trip Inspection Practice Test
Free CDL pre-trip inspection practice test — no sign-up.
🛠️ Driver tools
📚 Lessons & guides
- How to Pay for CDL School (Free & Low-Cost Options)
- How to Couple a Trailer (and Avoid a High Hitch)
- CDL Pre-Trip Inspection: A Simple Walkthrough
- How to Get Your CDL (Step by Step)
- How to Back Up a Truck and Trailer (Straight, Offset, Alley Dock)
- How to Shift a Manual (Non-Synchronized) Truck
- Hours of Service (HOS) Rules Explained
- Winter Driving Tips for Truckers
- CDL Log Books and ELDs Explained
Frequently asked questions
Are these CDL practice tests really free?
Yes — every test, tool and guide is free with no sign-up, and you can retake the tests as many times as you like.
Are the questions like the real CDL test?
They're practice questions written from the standard CDL manual to cover the same topics. Always also study your state's official CDL manual.
Which tests do I need?
Everyone takes General Knowledge. Class A adds Air Brakes and Combination Vehicles. Add endorsement tests (Hazmat, Tanker, Doubles/Triples, Passenger, School Bus) for what you'll haul or drive. Try the Class & Endorsement Finder.