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Category guide

Best AI Tools for Students

Study helpers, research assistants and writing tools with genuine free plans. The emphasis is on tools that help you learn — explain, quiz, organise sources — rather than tools that write your assignments for you.

13 verified tools13 with a free plan9 with API access

The comparison at a glance

CriterionPerplexityGrammarlyNotion AIQuillBotDeepL
ProviderPerplexity AIGrammarly (Superhuman)Notion LabsQuillBot (Learneo)DeepL SE
What it is forAn AI answer engine that searches the web and cites sources, with access to models from several providers on paid plans.An AI writing assistant that checks grammar, tone and clarity wherever you type and can rewrite or generate text on request.AI built into Notion's workspace for writing, searching, meeting notes and running multi-step agent tasks across your pages.A suite of writing tools for paraphrasing, summarising, grammar checking and AI detection, popular with students.An AI translator for text, documents and speech, with a writing assistant and a developer API.
Latest confirmed model—————
Main capabilities
  • Cited answers
  • Pro Search (Depends on plan)
  • Research (Deep Research) (Depends on plan)
  • Model Council (Depends on plan)
  • Brain (Preview)
  • Grammar and spelling correction
  • Tone view (Depends on plan)
  • Full-sentence rewrites (Depends on plan)
  • AI prompts (Depends on plan)
  • Plagiarism and AI-text detection (Depends on plan)
  • Enterprise security (Depends on plan)
  • Notion Agent (Depends on plan)
  • AI Meeting Notes (Depends on plan)
  • Enterprise Search (Preview)
  • Custom Agents (Depends on plan)
  • Notion AI trial (Limited)
  • Public API and webhooks
  • Paraphraser (Depends on plan)
  • Summarizer (Depends on plan)
  • AI Detector (Depends on plan)
  • Grammar checker
  • Team plans
  • Text and document translation (Depends on plan)
  • Glossaries (Depends on plan)
  • DeepL Write Pro (Depends on plan)
  • DeepL Voice (Depends on plan)
  • Translation memory (Depends on plan)
  • API
Free planYes
3 Pro Searches/day; 1 Research query/month; limited uploads		Yes
100 AI prompts per month		Yes
5 MB per upload, 7-day page history, 10 guests		Yes
Paraphraser 125 words per input; Summarizer 1,200 words; AI Detector 1,200 words per scan, 6 scans/day		Yes
50,000 characters per user/month; 1 file translation/month (5 MB max); 1 glossary (5 entries per language pair)
Cheapest paid planEducation Pro: $10/mo
With SheerID student verification		Pro: $30/mo
$12/mo billed annually
Per member. $30 monthly, $60 quarterly, $144 annually (shown as $12/month).		Plus: $12/mo
$10/mo billed annually
Per member		Premium: $19.95/mo
$8.33/mo billed annually
Annual $99.95 billed yearly; monthly figure from QuillBot FAQ; regional pricing applies		No monthly list price
API accessYes · docs (opens in a new tab)LimitedYes · docs (opens in a new tab)NoYes · docs (opens in a new tab)
Learning curveBeginner-friendlyBeginner-friendlyBeginner-friendlyBeginner-friendlyBeginner-friendly
Last verifiedOct 19, 2026Oct 19, 2026Oct 23, 2026Oct 19, 2026Oct 19, 2026

Browse genuinely free AI tools Browse the full directory

How we would choose

  • A free plan that covers real study sessions, not three queries a day.
  • Citation support: research tools must show their sources.
  • Check your school's AI policy before using any writing tool on coursework.

Advantages

  • Explaining difficult concepts at your own pace
  • Organising sources and summarising long readings
  • Free tiers cover most student workflows

Limitations

  • AI writes plausible wrong answers — verify against course material
  • Free tiers cap usage during exam periods
  • Undisclosed AI writing can breach academic-integrity policies

Practical use cases

Illustrative scenarios for this category — not customer case studies.

  • Turning lecture notes into practice questions
  • Summarising and questioning long PDFs with a source-grounded notebook
  • Checking your own draft for clarity before submitting

Frequently asked questions

Are these tools allowed at university?
Policies differ by institution and even by course. Many allow AI for study and explanation but treat undisclosed AI writing as misconduct — check your policy.
Which is the best free option?
The table shows what each free plan includes. For research, prefer tools that cite sources you can verify.
Can AI write my essay?
We would not recommend it: besides integrity policies, unverified AI writing frequently contains confident errors that are hard to spot.
Do any offer student discounts?
Some do — the tool profiles list verified plan details and student programmes where the provider documents them.

Also in this category

Elicit

An AI research assistant that searches academic papers, extracts data into tables and produces research reports and systematic reviews.

Consensus

An AI search engine that answers questions using peer-reviewed research, with Deep Search for literature-review style reports.

Khanmigo

Khan Academy's AI tutor for learners and free AI teaching assistant for teachers.

Microsoft 365 Copilot

Microsoft's AI assistant inside Word, Excel, PowerPoint, Outlook and Teams, grounded in your organisation's work data.

Julius AI

An AI workspace for analysing spreadsheets and databases in plain English, and creating charts, reports, slides and websites.

Synthesia

Business-focused AI video platform for training, communication and dubbing with AI avatars.

Gamma

Generate presentations, documents, webpages and social posts from a prompt or outline.

Related comparisons and guides

AI tools for students compared side by sideVerified data from the same directory.Best free AI toolsVerified data from the same directory. The full AI tools directorySearch, filter and compare every verified tool.

The table shows up to five entries in the directory's editorial order, not a ranking. Every value links back to a record with sources and a last-verified date.