LightPDF vs Perplexity AI vs ChatGPT vs ChatPDF
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
LightPDF
vs LightPDF
Competitor 1
Perplexity AI
Perplexity AI
Competitor 2
ChatGPT
ChatGPT
Competitor 3
ChatPDF
ChatPDFCompare
4 tools · best value per row highlighted
Your tool
LightPDF
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
Competitor
ChatPDF
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.
Traffic estimated monthly website traffic
Monthly visits
1.8Mvisits/mo
95.2Mvisits/mo
5.6Bvisits/mo
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MoM change
▲ 1.0%
▼ 8.2%
▲ 3.5%
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6-month growth
-4.4%
-42.9%
-1.6%
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Global rank web
#34,433
#446
#7
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Avg. last 3 months
1.7M
104.9M
5.5B
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Bounce rate lower is better
51%
33%
30%
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Pages / visit
2.3
3.6
4.3
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Visit duration
1m 31s
4m 18s
6m 35s
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Traffic sources
● Direct 88% · ● Referral 10%
● Direct 94% · ● Referral 4%
● Direct 95% · ● Referral 3%
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LightPDFPerplexity AIChatGPTChatPDF
Pricing
Model
Freemium
Freemium
Freemium
Free
Starting price
$1.33per month · free tier available
$20per month · free tier available
$8per month · free tier available
Free
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 FreeGo $8/moPlus $20/moPro 5x $100/mo+1 more
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Capabilities input → output
Input
Web pagesDocuments
CodeDocumentsImagesText
AudioTextImagesDocumentsCode
Web pagesTextDocuments
Output
Text
TextCode
TextImagesCodeAudio
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
9
10
19
12
Summarizing
Document summarization
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Research
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PDF analysis
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Chatbots
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PDFs
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Search engine
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Writing
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Homework assistance
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AI search
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Data extraction
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Document data extraction
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Interactive PDF processing
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Blogging
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Coding
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Copywriting
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Email writing
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Essay writing
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Grammar checking
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Image generation
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Image to text
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OCR
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PDF summaries
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PDF translations
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Research papers
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Text extraction
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Translations
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Academic research
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Code documentation
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Debugging
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
4.34 ratings
no ratings yet
Upvotes
▲ 0
▲ 3
▲ 17
▲ 0
Saves
0
0
4
0
Reviews
0
0
4
0
Prompts
0
1
17
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.