
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. pdfy.ai records 0 monthly visits with 0% growth and Freemium pricing.
Chat with PDFs, audio, video and websites — and get cited answers fast
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | lightpdf.com | pdfy.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.74M (1,742,568) | 0 (0) |
| MoM Traffic Delta | -314.58K (-15.3%) |
| 0 (0%) |
| Primary Market & Share | 🇮🇳 India (24.9%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 442.07K | 0 |
|---|
| User Rating | 4.2 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|

Free AI-powered PDF editor, converter and reader for every device
Upload a PDF and ask questions in natural language, follow up on details and see which passages the answers came from. A separate chat mode works with YouTube videos.
Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact.
Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically.
Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate.
Chat with PDFs, audio, video and websites — and get cited answers fast
Upload PDFs and audio, paste website URLs or YouTube links, and query all of them from the same conversational interface.
Responses point back to the regions of the source they came from, so you can verify claims and reuse exact wording in your own writing.
Free accounts get a handful of sources and questions each month, while paid tiers scale up to hundreds of sources and thousands of questions.
Paid plans include optical character recognition so image-only PDFs and scans become searchable text instead of dead weight.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
#3
SpecialistAI research platform for reading, understanding and writing scientific papers
Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.
Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents
Chat with any PDF, video, or website and get cited answers in seconds

Turn PDFs, videos, web pages and recordings into structured AI mind maps
Chat with any PDF and get cited answers instantly
SpecialistChat with any PDF and add an AI chatbot trained on your own content
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
SpecialistAI research platform for reading, understanding and writing scientific papers
Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.
Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.
Turn PDFs, videos, web pages and recordings into structured AI mind maps
SpecialistChat with any PDF and add an AI chatbot trained on your own content