About PrepBrix NEET

PrepBrix NEET is free NEET preparation for students who want to stop losing marks to the same mistakes. It is run by PrepBrix, Tamil Nadu, India.

Today it has 541 lessons across Physics (261), Chemistry (172) and Biology (108), each with practice questions, a worked example and revision cards. There is no paywall.

How the lessons are made

Lessons are drafted with AI assistance and are not published until they pass checks against the sources:

• Every fact cites the NCERT chapter and page it comes from, and an automated check tests whether the cited page carries the claim. It cannot judge every claim yet: a few hundred are too general to test or sit in a chapter whose PDF text is unreadable.
• Every worked example with a calculation has been re-solved step by step, separately from the original draft.
• Practice-question answers and every wrong-option explanation were re-derived, three passes per subject.
• Past-paper answers follow the official NTA answer keys. Questions whose text did not survive extraction cleanly are hidden rather than shown garbled.

When we get something wrong

Corrections are made in the lesson itself, each lesson shows the date it was last updated, and every correction is listed in the corrections log. Every question has a “Report an error” link, or see contact.

What PrepBrix will never do

• Make you log in to read a lesson or practise a question. Signing in is optional and only saves your progress.
• Ask for your phone number, so there are no sales calls.
• Show ads, or put a lesson behind a paywall.
• Fix a mistake quietly. Every correction is dated and listed in the corrections log.

Not affiliated with NTA, NCERT or the National Medical Commission. See the terms and privacy pages.