Study guides / Exam prep

Best Free CDL Practice Tests (2026)

Published June 24, 2026

Looking for a free CDL practice test before your DMV appointment? You have several options — here is how to choose.

What to look for

  • Instant scoring with explanations (not just correct letters)
  • Endorsement coverage — air brakes, combination, hazmat, passenger
  • Exam-length mode when you are close to test day
  • Mobile-friendly study on your phone

PassCDL free tier

PassCDL includes free 20-question practice tests for:

You can change answers before moving to the next question and review missed items after each test.

When Pro is worth it

The real CDL written exam often has 50 general knowledge questions (varies by state). PassCDL Pro adds DMV-length simulations, hazmat/passenger/tanker banks, and unlimited daily retakes — usually cheaper than paying $20–$50 for a second DMV attempt.

See PassCDL vs Driving-Tests.org for a side-by-side comparison.

Not affiliated with any state DMV.

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