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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Briefy
✓ verifiedFreemium
Browser and mobile AI summarizer that turns articles, videos and PDFs into structured notes saved to a knowledge base.
26K visits/mo
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AI PDF Summarizer
✓ verifiedFree trial
Online PDF suite for summarizing, editing, converting, and signing.
12M visits/mo8.7K saves
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LightPDF AI
✓ verifiedFreemium
AI-powered online and desktop PDF suite to edit, convert, OCR, sign, organize and chat with documents across devices.
1.8M visits/mo12K saves
Pricing
No public pricing
No public pricing
No public pricing
Core features
- ✦One-click AI summaries of varied content
- ✦Multiple views: overview, table, mind map, timeline
- ✦Knowledge base to save and search briefs
- ✦Ask questions about saved content
- ✦Multilingual summaries and translation
- ✦Chrome and Safari/iOS extensions
- ✦AI-powered PDF summarization
- ✦PDF editing and signing
- ✦PDF conversion to various formats
- ✦Form filling and annotation
- ✦Edit, convert and annotate PDFs
- ✦OCR and scanned-PDF enhancement
- ✦AI summarize and chat with documents
- ✦E-signature and document organization
- ✦Batch processing
- ✦Cross-platform: Web, Windows, Mac, iOS, Android
Use cases
- →Summarizing articles and research papers
- →Digesting long videos and podcasts
- →Building a personal knowledge base
- →Skimming and replying to email threads
- →Summarizing research papers and books
- →Editing and signing contracts
- →Converting PDFs to Word or JPG
- →Filling out tax and official forms
- →Convert and edit PDFs online or on desktop
- →Summarize or ask questions about documents
- →OCR scanned PDFs into editable text
- →Sign and organize documents across devices
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