PDF.ai vs ChatPDF vs LightPDF

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
PDF.ai
vs
Competitor 1
ChatPDF
Competitor 2
LightPDF
Competitor 3
Suggested competitors for PDF.ai: Smallpdf AI PDF88% Adobe Acrobat83% APAI PDF Reader83% Humata81% ReadDocs81% UPDF80% Collate80% Document Extract80%
Compare
3 tools · best value per row highlighted
Your tool PDF.ai
pdf.ai
PDF.ai lets you chat with any PDF: ask questions, get summaries and find answers inside the document.
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Competitor ChatPDF
chatpdf.com
ChatPDF is a document question-answering app: upload a PDF, ask questions in plain language, and get answers with built-in citations that point back to the source passage.
Make main Remove
Competitor LightPDF
lightpdf.com
LightPDF AI for Docs is an online tool that utilizes artificial intelligence to summarize and extract insights from uploaded PDF, Word, Excel, and PPT documents. With multi-platform availability and s
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Traffic estimated monthly website traffic
Monthly visits
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1.8Mvisits/mo
MoM change
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▲ 1.0%
6-month growth
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-4.4%
Global rank web
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#34,433
Avg. last 3 months
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1.7M
Bounce rate lower is better
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51%
Pages / visit
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2.3
Visit duration
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1m 31s
Traffic sources
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● Direct 88% · ● Referral 10%
PDF.aiChatPDFLightPDF
0477.3K954.5K1.4M1.9MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8M1M10MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Starting price
$49per month · free tier available
Free
$1.33per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreeStarter $49/moPro $99/moScale $249/mo+1 more
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Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Capabilities input → output
Input
DocumentsText
DocumentsTextWeb pages
DocumentsWeb pages
Output
DataText
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
10
12
9
PDF analysis
PDFs
Summarizing
Document data extraction
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Interactive PDF processing
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Data extraction
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Document summarization
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PDF summaries
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OCR
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Document processing
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APIs
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PDF translations
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Research
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Text extraction
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Academic research
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Document reading
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Homework assistance
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Summaries
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.