ChatPDF vs Collate vs LightPDF vs AI Summarizer

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
LightPDF
Competitor 3
AI Summarizer
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 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 AI Summarizer
articlesummarizer.com
When research papers pile up and deadlines loom, sifting through dense academic text eats hours that could go toward actual analysis
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Traffic estimated monthly website traffic
Monthly visits
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4.1Kvisits/mo
1.8Mvisits/mo
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MoM change
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▼ 59.8%
▲ 1.0%
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6-month growth
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-0.1%
-4.4%
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Global rank web
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#4,822,608
#34,433
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Avg. last 3 months
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8.9K
1.7M
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Bounce rate lower is better
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37%
51%
0%
Pages / visit
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1.3
2.3
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Visit duration
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2s
1m 31s
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Traffic sources
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● Direct 88% · ● Referral 10%
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ChatPDFCollateLightPDFAI Summarizer
0477.3K954.5K1.4M1.9MCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MAI Summarizer · 1011001K10K100K1M10MCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MAI Summarizer · 101Nov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Free
Starting price
Free
$9.99per month · free tier available
$1.33per month · free tier available
Free
Free tier
Free trial
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API access
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Plans
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Free Custom
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Free Free
Capabilities input → output
Input
DocumentsTextWeb pages
Documents
DocumentsWeb pages
DocumentsWeb pages
Output
Text
Text
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Writing & ContentAI Summarizer
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
12
10
9
8
Summarizing
Document summarization
PDF analysis
PDFs
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Summaries
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Interactive PDF processing
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PDF summaries
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Document reading
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Article summaries
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Data extraction
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Document data extraction
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Research papers summaries
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Document chat
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Document summaries
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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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Text extraction
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Academic research
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Document processing
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Homework assistance
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Multilingual summarization
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
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0
Prompts
0
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.