Free tools for students,
built by one student.
ThunderStudy AI is a free Formula Story Mode tool that turns any formula into a story, real-life analogy or memory trick for Physics, Chemistry, Mathematics and Biology. It is owned, built and maintained by Wondermayank, a solo student developer making free educational tools since 2018, with no account, card or paid plan.
ThunderStudy AI at a glance
Site name: ThunderStudy, with its main product ThunderStudy AI, at formula.thunderstudy.indevs.in.
Owner: Wondermayank, a solo student developer who has been building free educational tools since 2018.
Purpose: helping students remember formulas through AI-generated stories, analogies and memory tricks, plus a free ready-made library for PCMB Class 11 & 12, JEE, NEET, SSC, NTA and Banking.
Cost: free, with no account, card or paid plan. Fair use allows 5 AI stories a day and 15 a week.
Contact: contact@wondermayank.indevs.in.
Who runs ThunderStudy AI?
ThunderStudy AI is built and maintained by Wondermayank, a solo student developer. Since 2018, Wondermayank has been making free educational and utility tools for students, across ThunderStudy, ThunderAI and 800+ tools and counting.
There is no company or team behind it. Every page, tool and fix comes from one person, which is why the site stays small, fast and free.
What is the mission of ThunderStudy AI?
Good study tools should not depend on what a student can pay. ThunderStudy AI exists to give every student, whether preparing for JEE, NEET, SSC, NTA or Banking, a free way to understand and remember formulas instead of rote-learning them.
No account, no card and no paid tier. The only limit is a fair-use cap of 5 AI stories a day and 15 a week, so the free AI engine stays available for everyone. Common topics are already written in the free library, so they do not use a generation.
What can I do with ThunderStudy AI?
Turn any formula or concept into a story you will not forget, then save it for revision.
Stories for any subject
Type any topic or formula, such as E = mc² or Ohm's Law, across Physics, Chemistry, Mathematics, Biology, Economics and more.
Three ways to remember
Choose Story Mode, a Real-Life Analogy or a Memory Trick, each with a step-by-step breakdown of the formula.
Save, copy and regenerate
Download any story as a formatted PDF, copy the text, or regenerate it for a fresh take. A free ready-made library covers PCMB Class 11 & 12, JEE, NEET, SSC, NTA and Banking.
No account, data on your device
There is no sign-up. Your saved stories and your daily and weekly limit are kept in your own browser.
How can I contact Wondermayank?
Found a bug, want a feature, or need a file or resource? Write to contact@wondermayank.indevs.in or use the contact page. You can also find Wondermayank on social media.