High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
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LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. Scribbr records 7,530,803 monthly visits with +14.6% growth and Freemium pricing.

Free AI-powered PDF editor, converter and reader for every device
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | lightpdf.com | scribbr.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.74M (1,742,568) | 7.53M (7,530,803) |
| MoM Traffic Delta |
| -314.58K (-15.3%) |
| +957.01K (+14.6%) |
| Primary Market & Share | 🇮🇳 India (24.9%) | 🇺🇸 United States (32.1%) |
|---|
| Direct Visits / mo | 442.07K | 2.47M |
|---|
| User Rating | 4.2 | 4.4 |
|---|
| 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.

Academic proofreading, plagiarism checking and AI-powered writing tools in one place
A vetted academic editor reviews your paper within hours and returns tracked changes, comments and an explanation letter.
Scans your document against a large web and publication database to surface potentially unoriginal passages before submission.
Flags text likely generated by large language models and offers a rewriting mode aimed at making AI-assisted drafts sound more natural.
Creates and verifies references in APA, MLA, Chicago, AMA, IEEE and ACS styles from a URL, DOI or title search.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.

Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Paraphrase, proofread and summarize text with an AI writing workspace
A friendly Vietnamese AI study assistant for homework, images and everyday questions

Free online design tool with AI-powered templates and photo editing

Turn long PDFs into clear summaries and chat with your documents
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
All-in-one AI study tool for homework help, exam prep, notes, and flashcards

All-in-one AI assistant across web, browser, desktop and mobile
AI-powered PDF editor for Windows, Mac and iOS
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Paraphrase, proofread and summarize text with an AI writing workspace
A friendly Vietnamese AI study assistant for homework, images and everyday questions
Free online design tool with AI-powered templates and photo editing
Turn long PDFs into clear summaries and chat with your documents
An AI-powered creative and productivity suite spanning video, documents, diagrams and data
All-in-one AI study tool for homework help, exam prep, notes, and flashcards
All-in-one AI assistant across web, browser, desktop and mobile
A free, AI-powered PDF editor for every device