The best AI tools for teachers in 2026

This is for teachers who want AI to take over the repetitive parts of the job - drafting a first version of a lesson plan, turning a reading into a quiz, scanning a worksheet - without expecting it to replace judgment about what a specific class needs. Pair a general lesson-planning assistant with a purpose-built quiz or flashcard generator, and try the free browser extensions before paying for anything.

Key takeaways

• Free plans exist in every category below, but they cap usage - a handful of lesson plans a month, three quizzes, a limited word count - rather than removing features outright.
• Lesson-planning assistants such as Education Copilot and Teacher Tools GPT save drafting time but still need a teacher to check standards alignment and reading level before it goes in front of a class.
• Quiz and flashcard generators like Quizrise and Revisely work best as a first draft you edit, not a finished assessment you assign straight out of the tool.
• Free Chrome extensions such as Colleague AI Chrome Extension add AI features to whatever you're already using, with nothing to subscribe to until you decide you need more.
• Check your school or district's policy on AI tools and student data before installing anything that reads what's on a student's screen or stores their work.

Lesson planning and content generation

Teacher Tools GPT

Teacher Tools GPT is a browser-based assistant for lesson planning, grading support and quiz generation, aimed at primary through college educators. As of September 2026 it has a free plan covering three lesson plans and 10,000 generated words a month; the Pro plan is discounted to $4.99 a month, regularly $8.99, and removes those caps. Its main limitation is depth: it does not fully adapt content to a specific student's learning needs, so differentiation is still on the teacher.

Education Copilot

Education Copilot generates lesson plans, worksheets, handouts and rubrics from a short prompt, and covers more than 15 classroom tools in one place. As of September 2026, the free plan gives access to three core templates with no credit card required, while Pro is $9 a month billed annually ($108 a year) for unlimited use of every tool. The output is only as good as the prompt: a vague request produces a generic plan that still needs a pass for grade-level language and local standards.

Teach Ally

Teach Ally builds standards-aligned lessons, slides, worksheets and differentiation, and supports content in more than 100 languages, which suits schools with multilingual classrooms. Its site advertises a limited free tier alongside paid plans, but exact current pricing wasn't confirmed on its own pricing page this month - paid plans; see the vendor's pricing page. The drawback is flexibility: it does not offer a detailed prompting or open chat interface, so it fits teachers who want a guided form more than free-form requests.

Quizzes, flashcards and assessment prep

Quizrise

Quizrise turns text, PDFs, YouTube videos or a web page into a quiz, with flashcards and a summary generated alongside it, which suits teachers converting existing material into an assessment the same day. The free plan is capped at three quizzes a month with up to 20 questions each; paid plans allow more volume, but Quizrise doesn't publish exact tier pricing outside its app, so check the vendor's own pricing page for current numbers. It has no built-in analytics, so tracking how a class performed over time means exporting results elsewhere.

Revisely

Revisely generates flashcards, quizzes and notes from uploaded material, and is used by students, teachers and professionals revising the same content. As of September 2026 its free plan includes unlimited non-AI flashcards and quizzes plus a small daily allowance of AI chat and AI-assessed answers; paid plans exist but Revisely's pricing page wasn't accessible to confirm current numbers, so treat any figure you see elsewhere as unverified - see the vendor's pricing page. It's less suited to advanced or niche subjects, where automated generation limits show.

Gimkit

Gimkit is a game-based quiz platform built for live, in-class review, with AI-assisted question generation and leaderboard-driven game modes. The free Basic plan supports unlimited students with three rotating game modes; Pro is $14.99 a month or $59.88 a year (about $4.99 a month paid annually), confirmed on Gimkit's own help pages as of September 2026. Paying for Pro as an individual teacher adds up compared with a department or school license, and the free tier keeps the most popular game modes capped at a handful of players.

Free browser extensions worth trying first

Colleague AI Chrome Extension

Colleague AI Chrome Extension adapts lesson content to a student's learning style and gives teachers a dashboard of progress data, without leaving whatever page they're working in. It's free to install from the Chrome Web Store as of September 2026; any paid upgrade tiers weren't confirmed on the vendor's own pricing page. The tool itself can become a distraction rather than an aid without careful classroom management around when and how it's used.

Speak On It Chrome Extension

Speak On It Chrome Extension runs a short AI conversation with each student based on their own submitted essay, which is a way to check whether a student actually understands what they turned in rather than just catching copied text. It's free to install as of September 2026. It has no ratings on record yet, so how it holds up across a full classroom of students is unproven.

How to choose

Match the tool to the task rather than picking one all-purpose assistant. For a quick first draft of a lesson plan, Teacher Tools GPT or Education Copilot will get you further, faster, than starting from a blank page. If you need a whole department's lessons aligned to the same standards, Teach Ally's structure is worth its higher price only once you're using it across multiple classes, not for one teacher's occasional plan. To turn material you already have into an assessment the same day, Quizrise is built for exactly that; Revisely fits better when students are doing their own revision alongside you. For live, in-class engagement, Gimkit's game modes do something the document-generating tools can't. If you want to test whether AI belongs in your workflow at all before spending anything, start with the Chrome extensions - they cost nothing to try and nothing to cancel.

Whatever you use, don't assign an AI-drafted quiz or lesson plan unreviewed. And check your school or district's policy on student data before installing an extension that can read what's on a student's screen.

FAQ

Are these tools actually free for teachers, or is it a trial?

Most have a genuine free plan rather than a time-limited trial, but with usage caps - a set number of lesson plans, quizzes or AI messages a month. Read the current pricing page before assuming free coverage extends to a full class load all year.

Will an AI lesson planner follow my state or district standards?

Only if you tell it to. Teach Ally builds standards alignment into its templates; general tools like Teacher Tools GPT or Education Copilot need the specific standard pasted into the prompt, or the output will be generic.

Can AI quiz generators grade student work automatically?

Multiple-choice and short-answer formats can often be auto-graded, but free-response answers still need a teacher's read, since automated grading of open-ended writing is not reliable enough to assign a final grade on its own.

Is student data safe with these tools?

That depends on each vendor's own data policy, not on anything Toolio can confirm generally. Check whether a tool processes text locally or sends it to a third-party server, and confirm your school's policy allows it before you install anything that touches student work.