History coursework means working through primary sources, long readings and footnoted papers. The tools below can help you find sources, ask questions about your readings, organize citations and polish your writing — but they don't replace your own reading and analysis. Here are six worth knowing in 2026, with current free plans and student deals.
Best for: asking questions about your own primary sources and readings
Google renamed NotebookLM to Gemini Notebook in July 2026. You upload your own sources — documents, readings, PDFs — and it answers questions using only those sources, with inline citations that jump to the exact passage. It can also turn your sources into quizzes, flashcards and audio overviews. The free plan allows up to 100 notebooks with 50 sources each, and higher Google AI plans raise those limits. Google is offering eligible US college students a free year of Google AI Pro if they redeem by December 31, 2026 (a payment method is required and the plan renews automatically).
Why students use it:
Gemini Notebook is our top pick because it works from your own sources, but always check its answers against the original documents and follow your instructor's AI policy.
Best for: starting research with answers that link to sources
Perplexity is an AI search engine that writes answers with numbered citations to the web pages it used, which makes it a quick way to get oriented on a topic and find sources to read. The free plan includes unlimited basic searches and a small daily allowance of Pro searches. Perplexity Pro costs $20/month, and verified students can get Education Pro for $10/month (verified through SheerID), which includes Pro features plus Learn Mode.
Why students use it:
Best for: collecting sources and adding Chicago-style footnotes
Zotero isn't an AI tool, but it handles one of the most important jobs in a history paper. It's a free, open-source reference manager from a nonprofit that saves sources from your browser and inserts citations and bibliographies into Word, LibreOffice and Google Docs in over 9,000 citation styles — including Chicago notes-bibliography, with footnotes or endnotes. Online storage is free up to 300 MB, with paid storage upgrades if you need more.
Why students use it:
Best for: drafting research papers with in-text citations
Jenni is an AI writing assistant built for academic papers. You can upload PDFs, chat with your sources and cite in more than 10,000 citation styles. The free plan includes 10 AI autocompletes per day with limited AI chats; Jenni Plus is $12/month and Jenni Pro, with unlimited use, is $29/month, with savings advertised for annual billing.
Why students use it:
Best for: summarizing dense readings and fixing awkward sentences
QuillBot bundles a paraphraser, summarizer, grammar checker, citation generator and plagiarism checker. The free plan limits the paraphraser to 125 words at a time in 2 modes and the summarizer to 1,200 words. QuillBot Premium costs $8.33/month billed annually ($99.95/year) or $19.95 billed monthly, and verified students can get up to 25% off Premium through Student Beans.
Why students use it:
Best for: final proofreading and clearer academic writing
Grammarly's free plan checks spelling, grammar and tone and includes 100 AI prompts a month. Grammarly Pro costs $12/month billed annually ($144/year) or $30 month-to-month, and adds full-sentence rewrites, a plagiarism checker and more AI prompts. It works in your browser, Google Docs and Word.
Why students use it:
AI rules differ by course and school. Follow your syllabus, disclose AI use where required, never submit AI-generated text as your own, and check every claim and citation against real sources. In history, your argument and your reading of the evidence are what get graded.
Read our guide on how to use AI for research papers and learn how to proofread an essay with AI.