9 free AI PDF & Document Tools

9 ai pdf & document tools with a genuinely free tier — ChatPDF, Humata, Explainpaper and more, rated and compared so you know the limits before you sign up.

Free to explore on AI Master Tools — the independent directory of 654+ AI tools. Search by name or by the job you need done, filter by free, freemium or paid, check ratings and real pricing, and compare any two tools side by side to choose the right one in minutes.

Free tier available (9)

Freemium: a real free tier with limits, and paid plans once you outgrow it.

• ChatPDF — Excellent interface that lets students query long PDF files and get immediate citations. (Freemium, rated 4.8/5)
• Humata — Speedy document analyzer capable of summarizing and querying vast data collections. (Freemium, rated 4.8/5)
• Explainpaper — Simply highlight complex scientific terms to receive clear, simplified explanations. (Freemium, rated 4.8/5)
• PDF.ai — Interactive document reader featuring an inline highlight lookup sidebar. (Freemium, rated 4.7/5)
• AskYourPDF — A reliable partner to scan books and extract structured data tables. (Freemium, rated 4.7/5)
• UPDF AI — Enriches the UPDF design editing app with instant paragraphs translate. (Freemium, rated 4.7/5)
• Sharly AI — Collaborate with peers inside a shared document chat interface. (Freemium, rated 4.6/5)
• Documind — Construct structured databases from bulk collections of product manuals. (Freemium, rated 4.5/5)
• MapDeduce — Audits corporate contracts to spot hidden fees and missing parameters. (Freemium, rated 4.5/5)