Chalklet is open. Videos go live topic by topic, and the first 5 concepts of every topic will always be free.
For NEET and JEE

Watch the idea, not the lecture.

Short narrated videos where the diagram builds while it is explained, mapped topic by topic across the JEE and NEET syllabus.

No card. The first 5 concepts of every topic are free for good.

Now playingRectangles collapsing into the integral
Six types of epithelium, simple and stratifiedBiologyReal figures, labelled as the voice names each part
What we work hardest on

When the idea moves, the picture moves.

Real animation, made to show the concept, not to decorate it.

Computed, not hand-drawn

The ray obeys Snell’s law at every angle. The rectangles really do narrow toward the integral. Bond angles come from VSEPR. Change the science and the picture changes with it.

See it happen

Sweep the angle of incidence and the deviation falls, bottoms out, then rises again. You watch minimum deviation instead of memorising it.

Timed to the voice

Each part is drawn as the narration names it, so your eyes are where the explanation is.

Refraction through a prism · drawn and animated by Chalklet

Built so the picture and the words say the same thing.

Diagrams, not a talking head

Nobody is filmed. Each video draws the idea as the narration explains it, so what you see is the thing being described.

Your exam, not a generic one

The same concept, 3 ways: Foundation, NEET, JEE. Different depth, different terms, different worked examples.

Small on purpose

Revising twice costs you almost nothing.

Mapped to your exam NEETJEE MainJEE AdvancedMHT-CETCUETFoundation
How a lesson builds · Coulomb’s law

One picture, drawn as it is explained, ending on the exam’s own question.

Two point charges q1 and q2 separated by distance r
1The pictureTwo charges and the distance between them, drawn as the voice names them.
Coulomb's law in vector form, with Newton's third law boxed
2The lawThe same picture becomes Coulomb's law in vector form, one line at a time.
An exam question: where to place a third charge for equilibrium
3The questionEvery lesson ends on the kind of question the exam actually asks.

Opening topic by topic

The whole syllabus is mapped. Videos are being made and checked now, and each one goes live as soon as it passes. This section will count them as they do.

Biology
650 concepts mapped
NEET, MHT-CET, CUET
Chemistry
732 concepts mapped
JEE Main, JEE Advanced, NEET, MHT-CET, CUET
Mathematics
356 concepts mapped
JEE Main, JEE Advanced, MHT-CET, CUET
Physics
597 concepts mapped
JEE Main, JEE Advanced, NEET, MHT-CET, CUET
Tests
3 papers
1 chapter so far · timed, marked the way the exam marks

Start free. Stay if it helps.

Free
₹0
  • The first 5 concepts of every topic
  • Free for good, not a trial
  • No card needed
Create a free account
Full library · opens later
₹799 for 6 months

₹1,499 for 1 year · ₹2,499 for 2 years

  • Every concept in every topic
  • Pitched at your exam: Foundation, NEET or JEE
  • New videos as they are added
Start free, upgrade later

Questions you should ask

Is this made by AI?

Yes. The explanations, diagrams, narration and questions are generated with AI and reviewed before they are published. We say so on the front page rather than in the small print, because it is why one small team can cover a syllabus in several languages — and because you should know what you are watching. It also means errors are possible: if something contradicts your textbook, trust the textbook and tell us.

What does it cost?

The first 5 concepts of every topic are free, for good, with an account. The full library will be ₹799 for 6 months, ₹1,499 for 1 year or ₹2,499 for 2 years. It opens once the members' videos are made and checked, and nothing can be paid before then.

Is the whole syllabus there?

Not yet. Videos are added topic by topic in teaching order, and the section above counts exactly how many are live. If a concept has no video yet, the page says so rather than pretending otherwise.

How does the language option work?

Videos are narrated in English. The diagram is drawn once and does not depend on the language, so a second voice can be added to a video without remaking it — and where one exists, its page offers the switch: the diagram carries on, and you come back to the same point in the explanation, not the same second on the clock.

Do I need to install an app?

No. It runs in your browser on a phone or a laptop. The videos are small on purpose, so they play on ordinary mobile data.