ChatPDF vs Perplexity AI vs LightPDF

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

Your tool
ChatPDF
vs
Competitor 1
Perplexity AI
Competitor 2
LightPDF
Competitor 3
Suggested competitors for ChatPDF: Collate82% Smallpdf AI PDF81% APAI PDF Reader80% Adobe Acrobat80% iLovePDF AI Summarizer79% ReadDocs79% PDF.ai79% TLDR This78%
Compare
3 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 Perplexity AI
perplexity.ai
Search that gives answers instead of links
Make main 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
Traffic estimated monthly website traffic
Monthly visits
—
95.2Mvisits/mo
1.8Mvisits/mo
MoM change
—
▼ 8.2%
▲ 1.0%
6-month growth
—
-42.9%
-4.4%
Global rank web
—
#446
#34,433
Avg. last 3 months
—
104.9M
1.7M
Bounce rate lower is better
—
33%
51%
Pages / visit
—
3.6
2.3
Visit duration
—
4m 18s
1m 31s
Traffic sources
—
● Direct 94% · ● Referral 4%
● Direct 88% · ● Referral 10%
ChatPDFPerplexity AILightPDF
047.3M94.5M141.8M189MPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8M1M10M100M1BPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Starting price
Free
$20per month · free tier available
$1.33per month · free tier available
Free tier
Free trial
–
–
API access
–
–
–
Plans
—
—
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Capabilities input → output
Input
DocumentsTextWeb pages
CodeDocumentsImagesText
DocumentsWeb pages
Output
Text
CodeText
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+13 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
7
10
9
Document summarization
Summarizing
PDFs
–
Research
–
Homework assistance
–
AI search
–
–
Data extraction
–
–
Document data extraction
–
–
PDF analysis
–
–
Search engine
–
–
Chatbots
–
–
OCR
–
–
Research papers
–
–
Text extraction
–
–
Academic research
–
–
Document processing
–
–
Literature reviews
–
–
Summaries
–
–
Writing
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 3
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
0
1
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.