ChatPDF vs Collate vs UPDF vs LightPDF

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

Your tool
ChatPDF
vs
Competitor 1
Collate
Competitor 2
UPDF
Competitor 3
LightPDF
Compare
4 tools · best value per row highlighted
Your tool 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.
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Competitor Collate
collate.one
Collate is a free, offline PDF assistant designed for everyday learners, students, and professionals who want to take control of their PDFs. With Collate, you can: • Summarize PDFs: Turn lengthy doc
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Competitor UPDF
pdfassistant.ai
PDFs that work the way you need them to
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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
—
4.1Kvisits/mo
28.7Kvisits/mo
1.8Mvisits/mo
MoM change
—
▼ 59.8%
▼ 28.2%
▲ 1.0%
6-month growth
—
-0.1%
-27.5%
-4.4%
Global rank web
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#4,822,608
#984,401
#34,433
Avg. last 3 months
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8.9K
40.4K
1.7M
Bounce rate lower is better
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37%
42%
51%
Pages / visit
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1.3
2.1
2.3
Visit duration
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2s
19s
1m 31s
Traffic sources
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● Direct 90% · ● Mail 10%
● Direct 88% · ● Referral 10%
ChatPDFCollateUPDFLightPDF
0477.3K954.5K1.4M1.9MCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8M1K10K100K1M10MCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Freemium
Starting price
Free
$9.99per month · free tier available
$9.99per month · free tier available
$1.33per month · free tier available
Free tier
Free trial
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API access
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Plans
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Free Custom
Starter FreePlus $9.99/moPro $24.99/moBusiness $59.99/mo+1 more
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Capabilities input → output
Input
DocumentsTextWeb pages
Documents
DocumentsText
DocumentsWeb pages
Output
Text
Text
DocumentsText
Text
Skill level
Beginner-friendly
Beginner-friendly
Intermediate
Beginner-friendly
Categories
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeAI Document ExtractionAI PDF
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
12
10
14
9
PDF analysis
PDFs
Document summarization
PDF summaries
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Summarizing
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Interactive PDF processing
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Document data extraction
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Text extraction
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Document reading
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Summaries
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Data extraction
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Document editing
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PDF management
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Document chat
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Document scanning
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File conversion
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Local AI
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OCR
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PDF translations
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Research
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Academic research
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Document analysis
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Document processing
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Homework assistance
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PDF compression
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PDF redaction
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 1
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.