Collate vs ChatPDF vs ReadDocs vs PDF.ai

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

Your tool
Collate
vs
Competitor 1
ChatPDF
Competitor 2
ReadDocs
Competitor 3
PDF.ai
Compare
4 tools · best value per row highlighted
Your tool 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 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 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 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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Traffic estimated monthly website traffic
Monthly visits
4.1Kvisits/mo
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744visits/mo
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MoM change
▼ 59.8%
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▲ 141.6%
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6-month growth
-0.1%
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Global rank web
#4,822,608
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Avg. last 3 months
8.9K
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384
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Bounce rate lower is better
37%
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39%
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Pages / visit
1.3
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1.1
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Visit duration
2s
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Traffic sources
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CollateChatPDFReadDocsPDF.ai
03.3K6.5K9.8K13.1KCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KReadDocs · 101ReadDocs · 308ReadDocs · 7441001K10K100KCollate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KReadDocs · 101ReadDocs · 308ReadDocs · 744Nov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$9.99per month · free tier available
Free
Free tier
$49per month · free tier available
Free tier
Free trial
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API access
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Plans
Free Custom
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Free FreePro £9.99/moBusiness £29/mo
Free FreeStarter $49/moPro $99/moScale $249/mo+1 more
Capabilities input → output
Input
Documents
DocumentsTextWeb pages
DocumentsImagesText
DocumentsText
Output
Text
Text
Text
DataText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 4 shared · core   partial
Tasks covered
10
12
13
10
PDF summaries
Interactive PDF processing
Summarizing
PDF analysis
PDFs
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Document summarization
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Summaries
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Document chat
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OCR
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Document reading
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Document data extraction
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Document q a
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Document summaries
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APIs
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Data extraction
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Document processing
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Local AI
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Official documents q a
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PDF translations
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Research
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Academic research
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Homework assistance
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Meeting summaries
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YouTube summaries
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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
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0
Reviews
0
0
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Prompts
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.