ChatPDF vs LightPDF vs UPDF vs Collate

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

Your tool
ChatPDF
vs
Competitor 1
LightPDF
Competitor 2
UPDF
Competitor 3
Collate
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.
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
Make main Remove
Competitor UPDF
pdfassistant.ai
PDFs that work the way you need them to
Make main Remove
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
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
1.8Mvisits/mo
28.7Kvisits/mo
4.1Kvisits/mo
MoM change
—
▲ 1.0%
▼ 28.2%
▼ 59.8%
6-month growth
—
-4.4%
-27.5%
-0.1%
Global rank web
—
#34,433
#984,401
#4,822,608
Avg. last 3 months
—
1.7M
40.4K
8.9K
Bounce rate lower is better
—
51%
42%
37%
Pages / visit
—
2.3
2.1
1.3
Visit duration
—
1m 31s
19s
2s
Traffic sources
—
● Direct 88% · ● Referral 10%
● Direct 90% · ● Mail 10%
—
ChatPDFLightPDFUPDFCollate
0477.3K954.5K1.4M1.9MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1K1K10K100K1M10MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Freemium
Starting price
Free
$1.33per month · free tier available
$9.99per month · free tier available
$9.99per month · free tier available
Free tier
Free trial
–
–
–
API access
–
–
–
–
Plans
—
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Starter FreePlus $9.99/moPro $24.99/moBusiness $59.99/mo+1 more
Free Custom
Capabilities input → output
Input
DocumentsTextWeb pages
DocumentsWeb pages
DocumentsText
Documents
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 Document ExtractionAI PDF+1 more
Productivity & OfficeAI Document ExtractionAI PDF
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
1
9
5
2
Document summarization
PDF analysis
–
–
PDFs
–
–
Text extraction
–
–
Summarizing
–
–
Data extraction
–
–
–
Document data extraction
–
–
–
Document scanning
–
–
–
OCR
–
–
–
Document processing
–
–
–
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
–
–
–
–

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.