LightPDF vs ChatPDF vs ReadDocs vs NoteAI

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

Your tool
LightPDF
vs
Competitor 1
ChatPDF
Competitor 2
ReadDocs
Competitor 3
NoteAI
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 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 NoteAI
noteai.io
A graduate student records three-hour lecture videos and needs searchable transcripts in multiple languages
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Traffic estimated monthly website traffic
Monthly visits
1.8Mvisits/mo
—
744visits/mo
309.1Kvisits/mo
MoM change
▲ 1.0%
—
▲ 141.6%
▼ 7.8%
6-month growth
-4.4%
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+11.4%
Global rank web
#34,433
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#167,266
Avg. last 3 months
1.7M
—
384
315.5K
Bounce rate lower is better
51%
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39%
46%
Pages / visit
2.3
—
1.1
1.6
Visit duration
1m 31s
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—
21s
Traffic sources
● Direct 88% · ● Referral 10%
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● Direct 81% · ● Referral 17%
LightPDFChatPDFReadDocsNoteAI
0769.9K1.5M2.3M3.1MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MReadDocs · 101ReadDocs · 308ReadDocs · 744NoteAI · 64.5KNoteAI · 80.7KNoteAI · 57.4KNoteAI · 277.5KNoteAI · 3.1MNoteAI · 1.3MNoteAI · 302.1KNoteAI · 335.3KNoteAI · 309.1K1001K10K100K1M10MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MReadDocs · 101ReadDocs · 308ReadDocs · 744NoteAI · 64.5KNoteAI · 80.7KNoteAI · 57.4KNoteAI · 277.5KNoteAI · 3.1MNoteAI · 1.3MNoteAI · 302.1KNoteAI · 335.3KNoteAI · 309.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$1.33per month · free tier available
Free
Free tier
$4.99per 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
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Free FreePro £9.99/moBusiness £29/mo
Free FreePro $4.99/moUnlimited $8.33/mo
Capabilities input → output
Input
DocumentsWeb pages
Web pagesTextDocuments
TextImagesDocuments
AudioDocumentsImagesWeb pagesVideo
Output
Text
Text
Text
DocumentsImagesText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeVideo EditingVoice & SpeechWriting & Content+5 more
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
9
12
13
7
Summarizing
Document summarization
PDF analysis
Interactive PDF processing
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PDF summaries
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PDFs
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OCR
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Summaries
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Data extraction
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Document chat
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Document data extraction
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Document q a
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Document summaries
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Transcription
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Video summaries
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Mind maps
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Official documents q a
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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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Document reading
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Homework assistance
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Meeting summaries
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Note taking
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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
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.