ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. LightFill records 0 monthly visits with — growth and Contact for Pricing pricing.
Chat with any PDF, video, or website and get cited answers in seconds
An AI form filler that reads your documents and completes online forms in one click.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chatpdf.com | chromewebstore.google.com |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 1.04M (1,044,477) | 0 (0) |
| MoM Traffic Delta | -40.47K (-3.7%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (9.6%) | 🌐 Global (—) |
| Direct Visits / mo | 457.79K | 0 |
| User Rating | 4.2 | 3.5 |
| Supported Platforms | Website | Browser Extension |
Chat with any PDF, video, or website and get cited answers in seconds
Every response is anchored to your source document with clickable citations that scroll to the exact passage, so verification takes seconds instead of page-by-page searching.
Organize documents into folders and query many files in a single conversation to compare arguments, cross-reference findings, or study a whole syllabus at once.
Condense long papers, reports, and contracts into key takeaways, and translate or query documents in any language — including mixing a source language with a different question language.
Generate flashcards and slide decks from your material, and use the built-in AI writer and AI detector for drafting and checking academic text.
An AI form filler that reads your documents and completes online forms in one click.
Reads structured values out of ID cards, passports, invoices and other documents instead of asking you to type them.
Maps extracted values into the fields of the web form you are looking at, so a completed form is one action away.
Built to handle multiple document layouts and the varied field arrangements of administrative and checkout forms.
Removes the slow, mistake-prone copy-typing that dominates routine paperwork and online purchasing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Build powerful forms, surveys and quizzes with AI in minutes
Free / Open-sourceCompletely free PDF reading and editing tool with AI assistant, though basic compared to dedicated platforms.
Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
Combines full desktop PDF editing software with AI chat, but requires software installation for full features.
Includes robust developer APIs for custom document workflows, but free tier limits document page counts.
Strong multi-format document chat and form filling capabilities, but interface can feel slightly more cluttered.
Strong multi-format document chat and form filling capabilities, but interface can feel slightly more cluttered.
SpecialistPrivate AI that answers from your own documents, on Mac and Windows
SpecialistPrivate AI that answers from your own documents, on Mac and Windows
Great for comparing multiple documents and spreadsheets side by side, but smaller overall user community.
Great for comparing multiple documents and spreadsheets side by side, but smaller overall user community.
Clean interface for complex technical document summarization, but offers fewer advanced export formatting options.
AI that fills your PDF and Word forms for you
AI that fills your PDF and Word forms for you
Superior handling of complex tables and academic formatting, but supports fewer general document file types.
Superior handling of complex tables and academic formatting, but supports fewer general document file types.
