LightPDF vs ReadDocs vs ChatPDF vs UPDF

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

Your tool
LightPDF
vs
Competitor 1
ReadDocs
Competitor 2
ChatPDF
Competitor 3
UPDF
Compare
4 tools · best value per row highlighted
Your tool 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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Competitor ReadDocs
readdocs.co.uk
Upload a PDF contract and ReadDocs spits out a one-minute summary, bullet points, and answers to specific questions you ask
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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.
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Competitor UPDF
pdfassistant.ai
PDFs that work the way you need them to
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Traffic estimated monthly website traffic
Monthly visits
1.8Mvisits/mo
744visits/mo
—
28.7Kvisits/mo
MoM change
▲ 1.0%
▲ 141.6%
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▼ 28.2%
6-month growth
-4.4%
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-27.5%
Global rank web
#34,433
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#984,401
Avg. last 3 months
1.7M
384
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40.4K
Bounce rate lower is better
51%
39%
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42%
Pages / visit
2.3
1.1
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2.1
Visit duration
1m 31s
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19s
Traffic sources
● Direct 88% · ● Referral 10%
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● Direct 90% · ● Mail 10%
LightPDFReadDocsChatPDFUPDF
0477.3K954.5K1.4M1.9MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MReadDocs · 101ReadDocs · 308ReadDocs · 744UPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7K1001K10K100K1M10MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MReadDocs · 101ReadDocs · 308ReadDocs · 744UPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free
Freemium
Starting price
$1.33per month · free tier available
Free tier
Free
$9.99per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Free FreePro £9.99/moBusiness £29/mo
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Starter FreePlus $9.99/moPro $24.99/moBusiness $59.99/mo+1 more
Capabilities input → output
Input
DocumentsWeb pages
DocumentsImagesText
DocumentsTextWeb pages
DocumentsText
Output
Text
Text
Text
DocumentsText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Intermediate
Categories
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeAI Document ExtractionAI PDF
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
10
7
13
Document summarization
PDF analysis
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PDFs
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Summarizing
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PDF summaries
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Document data extraction
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Interactive PDF processing
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OCR
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Text extraction
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Summaries
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Data extraction
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Document summaries
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PDF management
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Document scanning
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File conversion
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Homework assistance
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Official documents q a
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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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Meeting summaries
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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
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
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0
Prompts
0
0
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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.