Comparison table
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 ChatPDF | not listed | yes | PDF & documents |
 iLovePDF | 5 EUR/mo | yes | PDF & documents |
 UPDF | not listed | trial | PDF & documents |
 LlamaParse | 50 USD/mo | yes | PDF & documents |
 DeepL | 7.49 EUR/mo | trial | Translation |
 QuillBot | not listed | ? | Writing & editing |
 Humata | 9.99 USD/mo | yes | PDF & documents |
 Reducto | not listed | trial | PDF & documents |
 Kickresume | not listed | trial | PDF & documents |
 Smallpdf | 1 USD/mo | trial | Productivity & notes |
How to choose
- Start with a tool that has a free plan and test it on your real task, not on the demo example.
- Compare prices in the same currency and billing period - annual plans are usually cheaper per month.
- For commercial work, check the license - free plans often do not grant commercial rights.
More tools (30)
Chat With PDF by Copilot.us
Chat with PDFs and Google Drive documents to get answers with page references, one of many productivity AI apps on Copilot.us.
Instafill.ai
Automatically fills PDF and Word forms using AI, pulling answers from your existing documents and data.
Immersive Translate
AI translator for bilingual web pages, PDFs, subtitles, meetings and images, for students, researchers and creators.
Kimi
AI assistant from Moonshot AI for chat, agentic coding, slide decks and deep research, aimed at developers and knowledge workers.
Reverso
Free online translator with dictionaries, context examples and document translation, for language learners and anyone translating text.
Opera AI
Free, accountless AI assistant built into the Opera browser that answers questions, summarizes tabs and files, and generates images.
Originality.ai
AI detector and content checker that flags AI-generated text and plagiarism for writers, editors, teachers and publishers.
Readwise Reader
Read-it-later app with advanced highlighting, RSS, PDF and newsletter support, for people who read a lot and want to remember it.
Recall
Personal AI knowledge base: save articles, videos, podcasts and PDFs, then summarize and chat with them using AI.
Knowt
AI study app turning lectures, PDFs and notes into flashcards, quizzes and guides for students, with school bulk licences.
NaturalReader
AI text-to-speech tool that turns documents, web pages and scripts into natural-sounding audio for reading, accessibility and voiceovers.
Paperpal
AI writing and research assistant for academics, covering grammar, plagiarism, paraphrasing, citations and journal submission checks.
Rev
AI and human-verified platform for legal and investigative teams: analyzes case files, drafts documents and transcribes evidence with citations.
Lexis+ with Protégé
Legal AI for drafting, legal research and document analysis, built on LexisNexis authoritative sources, for legal professionals.
AnkiDecks
Generates Anki flashcards with AI from PDFs, slides, notes, YouTube videos and topics, for students studying med, languages and exams.
Explainpaper
AI reader that highlights confusing parts of research papers and explains them in simple language, for researchers and students.
fynk
AI-assisted contract management platform for teams that create, store, negotiate, and sign agreements.
GetPaperFast
Turns academic PDFs into structured summaries (background, methods, results, limitations) for researchers and students.
iAsk
Free AI answer engine and homework helper that gives cited answers to questions, for students and researchers.
Mathos AI
AI math solver, calculator and tutor that solves calculus, algebra, physics and engineering problems step by step, including from photos.
Rows
AI data analyst in a spreadsheet: import data from 50+ sources and PDFs, then analyze and report in plain language, no code or formulas.
RowSpeak
AI tool that turns messy Excel, CSV, PDF, and image tables into charts, dashboards, and reviewable reports for spreadsheet-heavy teams.
UnSoloMind
Turns uploaded documents and notes into a chat-based AI assistant that answers team or client questions 24/7.
Unstructured
Converts messy documents (PDFs, scans, Office files, emails) into clean, structured data ready for GenAI pipelines and RAG.
Yomu AI
AI writing assistant for essays, research papers and theses, with citations, PDF chat and an originality check.
Open Notebook
Open-source, AI-powered note-taking and research platform that lets you summarize notes, generate podcasts and control privacy over AI access.
Eduaide
AI toolkit that turns standards, objectives or source material into lesson plans, assessments, graphic organizers and classroom games for K-12 teachers.
Gist AI
Free Chrome extension that summarizes websites, YouTube videos and PDFs using ChatGPT, for students, researchers and busy professionals.
Hebbia
AI platform for finance teams that searches, analyzes and drafts from firm documents and financial data for investors, bankers and lawyers.
Booke AI
AI bookkeeper working inside QuickBooks Online and Xero to categorize bank feed transactions, match documents and flag exceptions for accounting teams.
FAQ
What is the best AI for PDFs?
Most popular choices: ChatPDF, iLovePDF, UPDF. The ranking is based on popularity and free plan availability - affiliate links do not change it.
Is there a free AI for PDFs?
Yes: ChatPDF, iLovePDF, LlamaParse, Humata have a free plan.