TestCafe's Enneagram Test
- Offers an online test with summary results for free, and full results for a fee.
- http://www.testcafe.com/enn/

Ennea-Graph
- A free online test based on selecting the words that describe you most.
- http://enneagramspectrum.com/products/enneagraph.htm

C.L.A.U.D.I.O. Personality Test Bot
- A chat bot from the A.L.I.C.E. AI Foundation that attempts to determine the user's type by inserting typing questions into a chat conversation.
- http://www.alicebot.org/claudio.html

Eclectic Energies Enneagram Test
- Online test which indicates both type and wing. Uses process-of-elimination approach to identify type.
- http://www.eclecticenergies.com/enneagram/test.php

The Triadic Enneagram Test
- Also known as The Duniho Enneagram Test.
- http://www.duniho.com/fergus/enneagram/test/

The New Enneagram Test
- Free test by Tal Yarkoni. Hosted by 9types.com.
- http://www.9types.com/newtest/homepage.actual.html