Online teachers juggle lesson prep, grading, and constant communication. The hours add up fast. What if you could create a plan, build a quiz, and send feedback in minutes without paying a cent?
Free AI tools for teaching help you do more with less. In 2025, smart, teacher-friendly tools can draft lesson plans, generate rubrics, grade structured work, and even build interactive content. They fit right into virtual classes and remote workflows, and they work with tools you already use.
This guide covers the key benefits, the top 10 free options with pros and cons, and simple tips to get started. Whether you teach live on Zoom, manage a learning platform, or run blended classes, you will find tools that save time and boost engagement.
Why Free AI Tools Are Essential for Online Teachers
Time is your most valuable resource. AI helps reclaim it. With the right setup, you can turn a topic into a ready-to-use outline, create a quick exit ticket, or generate student feedback during your prep block.
Here is how free AI tools for teaching fit into a typical online routine:
- Lesson prep becomes faster. Draft plans, slides, and worksheets from a simple prompt. Tweak them to fit your students.
- Feedback gets personal. AI can draft comments tied to rubrics, point out strengths, and suggest next steps. You add the teacher voice.
- Engagement improves. Interactive quizzes, talking avatars, and tailored practice keep students active on screen.
- Grading speeds up. For structured tasks, tools can sort responses, score them, and flag outliers for your review.
Think about common needs. Maybe you spend hours writing objectives and exit tickets. Or you struggle to give detailed feedback to 120 students. AI handles the first pass, you do the final edit. That balance reduces burnout and protects energy for teaching.
These tools work well in virtual classes, LMS workflows, and remote grading. Most integrate with Google Drive or export to formats you already use. Start small. Try a few tools this week and track time saved. Quick wins build momentum and confidence.
Top 10 Free AI Tools for Teaching in 2025
These picks are curated for online teachers in 2025. Each tool is free or offers a strong free tier. The focus is on practical use, easy setup, and fast results.
1. TeacherServer: Unlimited AI Resources for Lessons
TeacherServer is a free, teacher-focused hub that surfaces AI tools for lesson plans, rubrics, assessments, and subject ideas. It covers many grade levels and content areas, so you can find what you need without digging through forums.
- Pros:
- Completely free, no paywall for core browsing
- Covers many subjects and use cases
- Simple, ad-free interface
- Cons:
- Requires internet access
- Advanced users may want deeper customization
How it helps: Use TeacherServer to quickly find lesson generators, rubric builders, and assessment tools in one place. Great for planning sprints or building units fast.
2. Brisk Teaching: Quick Chrome Extension for Quizzes and Feedback
Brisk Teaching is a free Chrome extension that works inside Google Docs and Slides. It helps you draft quizzes, lesson plans, presentations, and personalized feedback without switching tabs.
- Pros:
- Works inside Google tools you already use
- Fast for daily tasks like quizzes and comments
- No extra software to install beyond the extension
- Cons:
- Chrome-only
- Some advanced features are paid
How it helps: Perfect for Google Classroom workflows. Turn a reading into questions, build a slide deck, and generate feedback comments in minutes.
3. Eduaide.Ai: Dynamic Lessons and Student Feedback
Eduaide.Ai supports lesson planning, resource creation, and detailed feedback. It reduces planning time and helps you tailor materials to student needs.
- Pros:
- Cuts planning time with ready-to-edit drafts
- Supports personalization and standards alignment
- Clean, teacher-friendly interface
- Cons:
- Short learning curve to explore features
- Occasional glitches during peak times
How it helps: Build interactive tasks, prompts, and feedback that match your goals. Strong for remote teaching where clarity and structure matter.
4. DupDub: Interactive Talking Avatars for Engaging Content
DupDub lets you create talking avatars and short narrated clips. Use it to explain concepts, introduce units, or deliver announcements with a face and voice.
- Pros:
- Boosts student attention with visual hooks
- Easy video creation for micro-lessons
- Free basic access to get started
- Cons:
- Limited avatar options in the free tier
- Basic video editing skills help
How it helps: Drop short avatar videos into your LMS, warm up a live class, or record quick reteaches. Great for younger students or language learning.
5. Kangaroos.ai: Fast AI Grading Based on Rubrics
Kangaroos.ai speeds up grading by scoring work against rubrics. It is best for structured assignments with clear criteria.
- Pros:
- Saves hours on repetitive scoring
- Accurate for rubric-based tasks
- Works with common file formats
- Cons:
- Less effective for open-ended creative work
- Some teachers may have privacy questions about uploads
How it helps: Use for short responses, lab reports, or paragraph writing. Let the tool draft scores and comments, then review and finalize.
6. Chalkie.ai: Auto-Generated Presentations and Worksheets
Chalkie.ai produces PowerPoint slides and printable worksheets from your topic or objectives. You get a quick starting point, then edit to match your class.
- Pros:
- Rapid output for slides and handouts
- Customizable templates
- Free basics for common tasks
- Cons:
- Designs can feel generic
- Requires editing for local standards and context
How it helps: Ideal for building weekly slide decks or practice sheets. Export, tweak, and publish to your LMS.
7. Notta.ai: Smart Notetaker for Online Lessons
Notta.ai records and transcribes virtual classes or meetings. It creates searchable notes and time-stamped highlights for quick review.
- Pros:
- Accurate transcription for most speakers
- Search across notes to find key moments
- Saves time when writing summaries
- Cons:
- Free plan limits minutes
- Accents and noisy audio can reduce accuracy
How it helps: Share clean notes with students who missed class, pull quotes for feedback, or track accommodations with less manual typing.
8. Thetawise: Math Helper for Teachers and Students
Thetawise supports math instruction with explanations and step-by-step solutions. It can help students see each step and understand why it works.
- Pros:
- Clear, guided solutions
- Free access for common math topics
- Useful across grade levels
- Cons:
- Math-only focus
- May struggle with very advanced or niche problems
How it helps: Use for guided practice, homework checks, or small group support in online math sessions.
9. TeachAid: All-in-One Free Lesson and Assessment Planner
TeachAid brings lesson planning, interactive presentations, and activities together. It aims to keep everything in one place so you do not juggle multiple tabs.
- Pros:
- All-in-one planning and activity hub
- Engaging formats for student use
- No ads in the core experience
- Cons:
- Newer tool, fewer ready-made templates
- Requires a free account
How it helps: Build plans, generate activities, and push content to your online classroom without switching tools.
10. Education Copilot: AI Templates for Plans and Reports
Education Copilot offers templates for lesson plans, reports, outlines, and handouts. The free trial gives you time to build a set of reusable resources.
- Pros:
- Versatile templates for teaching tasks
- Fast generation with clear prompts
- Low cost if you decide to upgrade later
- Cons:
- Trial period ends quickly
- Some advanced features are paid
How it helps: Use the free period to generate unit plans, parent letters, and handouts. Save and reuse across classes.
How to Start Fast and See Wins This Week
- Pick your need: planning, grading, or engagement. Choose one.
- Try two tools: one primary, one backup. For example, Eduaide.Ai for planning and Chalkie.ai for slides.
- Set a 20-minute timer: create a plan, a quiz, and a worksheet. Stop when the timer ends.
- Edit for your class: add examples, adjust rigor, and align to your goals.
- Track time saved: compare to your old workflow. Keep what works.
Conclusion
Free AI tools for teaching help online teachers cut prep time, personalize feedback, and keep students engaged. The tools above cover planning, grading, content creation, and class management, all with little or no cost. Start with two or three that match your biggest pain point, like rubric grading or slide building, and measure the time you save.
Ready to try? Pick a tool, build one resource today, and share your results in the comments. Your future self, and your students, will thank you.