10 Free AI Tools for Students in 2026
Artificial intelligence is changing the way students research, learn and organize their school activities. Today, there are tools capable of explaining difficult subjects, helping with writing, summarizing documents and assisting with programming.
But do you really need to pay to take advantage of these resources? Not necessarily. Many platforms offer free versions, although they may have usage limits and restricted features.
In this article, you will get to know 10 artificial intelligence tools that can be useful for Brazilian students, with examples of use and guidance on getting the most out of each one.
Important: Use artificial intelligence as a support for learning, not as a substitute for reasoning, reading and doing your own work.
1. ChatGPT: AI Assistant for Studying and Clearing Up Questions
ChatGPT is an artificial intelligence tool that can help students understand complex subjects, practice exercises and organize study plans.
How to use ChatGPT for studying?
- Step-by-step math explanations.
- Summaries of texts provided by the student.
- Physics exercises with explained solutions.
- Help understanding programming concepts.
- Question-and-answer simulations for exams.
Example prompt
Explain the concept of a derivative as if I were a high school student. Give practical examples and then create five exercises of increasing difficulty.
Check the answers and try to solve the exercises on your own. Artificial intelligence can make mistakes.
2. Google Gemini: AI for Research and Learning
Google Gemini is an artificial intelligence tool that can assist with research, explaining concepts and organizing ideas.
What is it for?
- Understanding scientific concepts.
- Exploring research topics.
- Generating review questions.
- Organizing ideas for school assignments.
The availability of features depends on the version and the account used.
3. Microsoft Copilot: Help with Tasks and Ideas
Microsoft Copilot is an artificial intelligence assistant that can be used to develop ideas, explain content and support writing tasks.
Examples of use
- Create a weekly study plan.
- Organize ideas for an assignment.
- Explain computing terms.
- Practice conversation in other languages.
The available features may vary depending on the version of the service.
4. NotebookLM: Organize Your Study Materials
NotebookLM is a tool that helps you understand and organize materials provided by the user.
How can it help students?
- Identify the main topics.
- Ask questions about the material.
- Create summaries and review guides.
- Organize information for studying.
Example: Upload physics material and ask: "What formulas are presented in this document and in which situations should I use them?"
5. Perplexity AI: Research with Sources from the Internet
Perplexity is an artificial intelligence research tool that presents answers accompanied by sources.
How to use it for school assignments?
- Research a topic for an assignment.
- Find sources to explore a subject in more depth.
- Ask follow-up questions.
- Look up information available on the internet.
Do not copy answers directly. Open the sources, read the content and confirm the information.
6. Grammarly: Improve Your Texts in English
Grammarly offers proofreading and writing assistance features, especially useful for those who study English or produce texts in that language.
- Grammar correction.
- Clarity and writing suggestions.
- Support for developing ideas.
- Proofreading of texts in English.
Use the tool to learn from the corrections, instead of just accepting every suggestion.
7. Canva: Create Presentations and Visual Work
Canva helps you create presentations, visual materials and graphic projects.
How can it help with studying?
- Create school presentations.
- Develop infographics.
- Organize visual content.
- Prepare materials for seminars.
8. Khan Academy and Khanmigo: Learning Support
Khan Academy offers educational resources, while Khanmigo is an artificial intelligence assistant developed to support learning experiences.
Possible applications
- Practice math.
- Explore educational concepts.
- Receive guidance to solve problems.
- Develop study habits.
The availability of Khanmigo may vary depending on the region and the type of account.
9. Wolfram Alpha: Explore Math and Science
Wolfram Alpha is a computational tool that can be useful for exploring calculations, mathematics and quantitative concepts.
Examples of use
- Check math calculations.
- Explore functions and equations.
- Investigate physics concepts.
- Compare exercise results.
Try to solve the exercise first and use the tool to check the result.
10. GitHub Copilot: Learn Programming with AI
GitHub Copilot can assist with code development and with understanding programming concepts.
How to make the most of it for studying?
- Ask for explanations of code snippets.
- Identify possible errors.
- Create small programming exercises.
- Compare different implementations.
Code generated by artificial intelligence needs to be reviewed, tested and understood.
How to use artificial intelligence to study?
1. Use AI as an assistant teacher
Instead of just asking for the answer, ask for an explanation that helps you understand the subject.
Explain this exercise step by step and do not give me the final answer until I try to solve it.
2. Create a personalized study plan
Ask the artificial intelligence to organize a schedule according to your subjects, available times and goals.
3. Verify the information
Artificial intelligence models can produce incorrect answers. Compare the information with books, school materials and reliable sources.
4. Avoid copying finished work
Use AI to develop ideas, understand concepts and improve your learning process.
Which AI tool is best for students?
There is no single tool that is the best for every situation. The choice depends on the task you want to accomplish.
| Goal | Tool |
|---|---|
| Explanations and exercises | ChatGPT |
| Research with sources | Perplexity |
| Organizing materials | NotebookLM |
| Writing and proofreading | Grammarly |
| Presentations | Canva |
| Programming | GitHub Copilot |
| Math | Wolfram Alpha |
Free features, usage limits and prices may change. Check each service's official website.
Frequently asked questions about AI tools for students
What is the best free AI for studying?
It depends on the subject and the goal. ChatGPT, Gemini and other tools can help with explanations, exercises and study organization.
Can I use AI to do school assignments?
Yes. AI can help with research, organizing ideas and proofreading. It is important to produce work that you understand and to follow the rules of your educational institution.
Which tools help solve math exercises?
ChatGPT and Wolfram Alpha can help explore math problems. Use them to understand the procedures and check results.
Are AI tools really free?
Some offer free plans with limits. Others make certain features available only on paid plans. Check the current terms of each service.
How can I study with AI without becoming dependent on it?
Try to solve the exercises on your own, ask for hints when necessary and explain the content in your own words.
Conclusion
Artificial intelligence tools can be important allies for students who want to learn, research and organize their activities better.
From conversational assistants to writing, research and programming platforms, there are different options to explore.
The most important thing is to choose the right tool for each goal and use it responsibly.
Start with one tool, test how it can help with your studies and build the habit of learning actively.