I'm Mayank, a student developer who builds free tools so students never have to pay for exam prep.
800+ tools, mock tests and study platforms for CUET, JEE, NEET, SSC and Banking prep — all free, no sign-up, built solo since 2018.
- 800+ free tools shipped
- No sign-up, ever
- Built for Indian exam students
Start here
Five of the best, picked from 800+ free projects.
What are the best free tools to start with on Wondermayank?
Start with ThunderTest for free CUET, SSC, Banking, CAT, JEE and NEET mock tests, Tiny AI Tools for mind maps, flashcards, formulas and mock tests from any topic, free Hindi and English typing practice, 65+ free image tools, and SelfCare. All five are free, with no paywalls or subscriptions.
- 5 hand-picked tools from 800+ free projects
- Built by Wondermayank (Mayank), a student developer in Sironj, India
- Updated
Free mock tests
ThunderTest
CUET, SSC, Banking, CAT, JEE & NEET mock tests, free for every student.
Take a free mock test
AI study tools
Tiny AI Tools
Make mind maps, flashcards, formulas and mock tests from any topic.
Meet Tiny AI
Hindi & English typing
Type fast in Hindi and English
Typing games, tests and daily practice to build real speed.
Start typing
65+ image tools
Free image tools
Convert, compress, resize and edit images right in your browser.
Open image tools
Your personal space
SelfCare
Skincare, routines, mehendi and a calm corner just for you.
Open SelfCare
AI
Chat, make mind maps, flashcards, formulas and mock tests with Tiny.
What free AI study tools does Tiny offer?
Tiny, the ThunderStudy mascot, powers nine free AI study links: Tiny Chat, Mascot Chat with Tiny, Bubble and Byte, an AI Mock Test Maker, Thunder Mind Map, Flashcard AI, Formula AI, Topic to PDF and the ThunderStudy AI hub. Pick a topic and get study material back. Tiny also lives on Telegram as Tiny 2.0, Tiny Create and Tiny AI Notes.
- 9 free AI links, from chat to mock tests
- Outputs: mind maps, flashcards, formulas, mock tests and PDFs
- Also on Telegram: @tiny2_thunder_bot, @thunder_chatgpt_bot, @tiny_ai_robot
Study
Mock tests, study hubs, daily practice and blogs for every exam.
Where can I find free mock tests and study material for CUET, SSC, Banking and JEE/NEET?
ThunderTest and ThunderStudy offer free CBT-style mock tests for CUET, JEE and NEET, Banking, CAT and big exams, plus study hubs for CBSE, Class 12, NCERT, SSC, Banking, CLAT, CAT, CA, UPSC, CTET and MPTET, daily English and maths practice, and a ThunderStudy blog and PDF reader.
- 34 links: mock tests, subject hubs, daily practice and blogs
- Hubs include Science Se Hoga, Commerce Se Hoga and Humanities Se Hoga
- Free for every student, with no paywalls or subscriptions
Project
Tools, ideas, typing, wallpapers and hundreds of free projects.
What free tools and projects are in the Project section?
The Project section collects free tools by Wondermayank: Hindi and English typing games and tests, local image converters, free PDF converters, 4K phone and PC wallpapers, SelfCare, WonderPrint, portfolio and website UI ideas, and the Wondermayank Hub listing all 800+ projects.
- 19 links into 800+ free projects built since 2018
- Typing, image, PDF, wallpaper and code-help tools
- Browse everything at project.wondermayank.in
Enjoy
Take a break: mascots, guides, diaries and a few surprises.
What can I enjoy on Wondermayank besides studying?
Enjoy is the fun corner: meet the mascots Tiny, Byte and Bubble, open the Harry Potter Riddle diary, see the Luffy portfolio, get outfit ideas with What to Wear Today, read the Make.Wondermayank coding guide, or learn about the owner.
- 6 links, plus one coming soon
- Mascots: Tiny (ThunderStudy), Byte (Wondermayank) and Bubble (robot friend)
- Owner profile at about.wondermayank.in
Content I create
Beyond code — I make content for fun, education, and the sheer love of creating.
Dev vlogs, tech commentary, coding journeys, and life as a student builder from Sironj.
Watch ›Study tips, exam strategies, CUET/SSC/Banking prep videos, and CBT platform walkthroughs.
Watch ›Funny takes, student life comedy, relatable roasts, and casual entertainment for Indian students.
Watch ›Gaming content, live streams, PC gaming sessions, and chill gaming commentary.
Watch ›Tech tutorials, tools reviews, web development tips, and how-to guides for students.
Watch ›Roast videos, light-hearted commentary, and fun takes on internet culture and trends.
Watch ›Follow along on Instagram
Daily updates, study tips and Tiny's adventures.
Builds, behind-the-scenes and student-developer life from the creator.
Follow ›Study tips, exam updates and ThunderStudy announcements for aspirants.
Follow ›Meet Tiny, the ThunderStudy mascot: study-buddy moments and new features.
Follow ›From a single video
to 800+ free tools.
A solo journey that started with a gaming channel and became something nobody planned.
"If you want to build something big, you have to start with a small step."
What started as a gaming YouTube channel in 2018 became a full ecosystem of study platforms, AI tools, Telegram bots, and content across 7 channels — all built solo, all free, all from Sironj.
Meet Tiny, your exam-prep guide
Tiny is the official mascot of ThunderStudy and ThunderTest, Wondermayank's free exam-prep platforms. She is an illustrated character who guides students through study material and CBT mock tests, and she changes outfit to match the exam you are preparing for.
- Home
- ThunderStudy and ThunderTest
- Job
- Guides students through study material and CBT mock tests
- Mood
- Focused, encouraging and never in a hurry
- Always Tiny
- Brown messy bun with a blue headband, lightning-bolt hair clip, glowing triangle earrings and the ThunderStudy bolt badge
Her outfit changes with the exam
Tiny, Byte & Bubble
Tiny is the ThunderStudy and ThunderTest exam-prep mascot, and Byte is the mascot of every Wondermayank project. Say hello to their new friend Bubble, a small floating robot with bunny-ear headphones who joins them across the platforms.
TinyThunderStudy & ThunderTest
ByteEvery Wondermayank project
Bubble NewTiny and Byte’s new friend
Festivals of the world
Study every festival: Hindu, Muslim, Sikh, Christian and more, with Tiny.
Explore festivals
The Telegram bots
Which free Telegram bots does Wondermayank run?
Wondermayank and ThunderStudy run 11 free Telegram bots: Tiny 2.0 (AI study chat), Tiny Create (study packs), Tiny AI Notes (colour PDF notes), Tiny English (English MCQs every 3 hours), Quiz Timer, Timer, Subject Choose, Weather, Scribd Downloader, TeleRemind and Mindmaster, the primary contact bot.
- 11 bots, all free to use
- Search any bot by its @username in Telegram
- Contact Wondermayank: @Mindmaster_robot
Free Telegram bots directory
| Bot | Handle | What it does | Type |
|---|---|---|---|
| Weather Bot | @weather_thunder_robot | Real-time weather forecasts inside Telegram. | Utility |
| Quiz Timer Bot | @Quiz_Thunder_bot | Quizzes with a countdown timer. | Study |
| Timer Bot | @Thunder_timer_bot | Study and Pomodoro timers. | Utility |
| Subject Choose Bot | @Thunder_choose_bot | Subject choosing and study planning. | Study |
| Scribd Downloader | @Scribd_thunder_robot | A Telegram bot for Scribd documents. | Utility |
| Mindmaster | @Mindmaster_robot | The primary contact bot for Wondermayank. | Utility |
| Tiny 2.0 | @tiny2_thunder_bot | Tiny's AI study bot, built on the Tiny AI models. | Study |
| Tiny Create | @thunder_chatgpt_bot | Turns a topic into a study pack: flashcards, formulas, a mind map and an image. | Study |
| Tiny AI Notes | @tiny_ai_robot | Turns any topic into detailed colour notes as a PDF. | Study |
| Tiny English | @tiny_english_robot | Sends English MCQs every 3 hours for automatic practice. | Study |
| TeleRemind | TeleRemind app | A smart reminder app that works with Telegram. | Utility |
How to use a Wondermayank Telegram bot
- Open the bot. Tap a bot's link or search its @username in Telegram.
- Tap Start. Press Start to wake the bot up.
- Follow the prompts. Send your topic or use the buttons the bot shows.
The custom GPTs
Tech stack
The highlights
Questions, answered plainly
Who is Wondermayank?
Wondermayank is a student developer from Sironj, India, who has been building free educational tools and platforms since 2018 for students preparing for CBSE, CUET, SSC, Banking, JEE and NEET exams.
Are these study tools actually free?
Yes. Every tool, mock test platform and Telegram bot in the Wondermayank and ThunderStudy network is free to use with no paywalls, no subscriptions, and no hidden charges.
What exams does ThunderStudy cover?
ThunderStudy and Commerce Se Hoga cover CBSE, CUET, SSC (CGL/MTS/CHSL), Banking exams (SBI, IBPS, RBI), CLAT, CAT, NDA, and JEE–NEET preparation across 6+ dedicated platforms.
How do I contact Wondermayank or request a new tool?
Message the Mindmaster Telegram bot at @Mindmaster_robot, email contact@wondermayank.indevs.in, or use the contact page at wondermayank.in/contact.
What tech stack do you use?
Primarily vanilla HTML, CSS, and JavaScript — single-file tools hosted on GitHub Pages. Firebase for auth and sync, the Tiny AI models (Tiny Lite, Tiny 2.0 and Tiny Image Create) for free AI features, and Vercel for anything needing serverless functions.
Where should I start on Wondermayank?
Start with the five picks in the Start here section: ThunderTest for free CUET, SSC, Banking, CAT, JEE and NEET mock tests, Tiny AI Tools for mind maps, flashcards, formulas and mock tests, the Hindi and English typing practice, the free image tools, and SelfCare.
What free AI study tools does Wondermayank offer?
The AI section has Topic to PDF, Tiny Chat, Tiny Only, Mascot Chat, ThunderStudy AI, AI Mock Test Maker, Thunder Mind Map, Flashcard AI and Formula AI. All of them are free and made with Tiny, the ThunderStudy mascot.
Which Telegram bots does Wondermayank run?
Wondermayank runs free Telegram bots including Tiny 2.0 (@tiny2_thunder_bot), Tiny Create (@thunder_chatgpt_bot), Tiny AI Notes (@tiny_ai_robot), Tiny English (@tiny_english_robot), Weather Bot, Quiz Timer Bot, Timer Bot, Subject Choose Bot, Mindmaster, Scribd Downloader and TeleRemind.
How can I make a study pack or colour notes on Telegram?
Send a topic to Tiny Create (@thunder_chatgpt_bot) to get a study pack with flashcards, formulas, a mind map and an image. Send any topic to Tiny AI Notes (@tiny_ai_robot) to get detailed colour notes as a PDF.
How do I practise English MCQs automatically?
Start Tiny English (@tiny_english_robot) on Telegram. It sends English MCQs every 3 hours so you get automatic English practice. You can also use the daily English test in the Study section.
What is in the Study, Project and Enjoy sections?
Study has mock tests, study hubs, daily practice and blogs on ThunderTest and ThunderStudy. Project has free tools, typing practice, image and PDF tools, wallpapers, ideas and 800+ free projects. Enjoy has mascots, guides, diaries and fun projects.
Who is Tiny, the ThunderStudy mascot?
Tiny is the illustrated mascot of ThunderStudy and ThunderTest. She guides students through free study material and CBT mock tests, and her outfit changes with the exam, such as a school uniform for CUET, a college hoodie for SSC and a doctor coat for NEET.
What is the difference between Tiny and Byte?
Tiny is the mascot of ThunderStudy and ThunderTest, the exam-prep platforms. Byte is the mascot of every Wondermayank project, including free tools, typing tests and utilities. Bubble is their newest friend, a small floating robot.
Who is Bubble, the robot mascot?
Bubble is the new robot friend of Tiny and Byte. It is a small white and blue floating robot with bunny-ear headphones, a WM logo, a glowing smiley face and a lightning bolt on its chest. Bubble is an illustrated character and appears with Tiny and Byte on the Wondermayank mascot page.
Why does Tiny change outfits?
Tiny changes outfits so she feels like a relatable girl who dresses the way real girls do: a school uniform for CUET, a college hoodie for SSC, a doctor coat for NEET and ethnic wear for festivals. Her face, hair, hair clip and earrings never change, so she is always recognisable.
Are Tiny, Byte and Bubble real people?
No. Tiny and Byte are illustrated characters and Bubble is an illustrated robot, all created for ThunderStudy and Wondermayank.
Where can I take free CUET mock tests?
Take free CBT-style CUET mock tests on ThunderTest at thundertest.indevs.in, or open the CUET Mock Test card in the Study section. ThunderTest also covers SSC, Banking, CAT, JEE and NEET.
Can I practise Hindi and English typing for free?
Yes. Wondermayank's typing project offers free typing games, tests and daily practice in Hindi and English at project.wondermayank.in/typing.
What free image and PDF tools does Wondermayank have?
The Project section links to 65+ free image tools that convert, compress, resize and edit images in your browser, plus free PDF converters and a print helper called WonderPrint.
How do I use a Wondermayank Telegram bot?
Open the bot's link or search its @username in Telegram, tap Start, then follow the bot's prompts. All 11 bots are free, and the full list is in the Telegram bots section.
Which Telegram bot makes notes, flashcards or English practice?
Use Tiny AI Notes (@tiny_ai_robot) for colour PDF notes from a topic, Tiny Create (@thunder_chatgpt_bot) for a study pack with flashcards, formulas, a mind map and an image, and Tiny English (@tiny_english_robot) for English MCQs every 3 hours.
Which Telegram bots help with timers, planning and reminders?
Timer Bot (@Thunder_timer_bot) runs study and Pomodoro timers, Quiz Timer Bot (@Quiz_Thunder_bot) adds a countdown to quizzes, Subject Choose Bot (@Thunder_choose_bot) helps with subject choosing and study planning, and TeleRemind is a smart reminder app that works with Telegram.
Which AI models power Tiny?
Tiny runs on its own AI models: Tiny Lite for chat, Tiny 2.0 for formulas, mind maps and all heavy study tasks, and Tiny Image Create for creating images. Tiny 2.0 (@tiny2_thunder_bot) is also the AI study bot on Telegram.
Let's build something free.
Have an idea? Need a tool? Just want to say hi — I'm always building.
Connect with me
Swipe or drag to see more