LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. UMLGenius records 0 monthly visits with — growth and Free pricing.
Free AI-powered PDF editor, converter and reader for every device
Turn a plain-language system description into a UML diagram in your browser
| Dimension / Metric | | |
|---|---|---|
| Official Domain | lightpdf.com | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 1.74M (1,742,568) | 0 (0) |
| MoM Traffic Delta | -314.58K (-15.3%) | 0 (—) |
| Primary Market & Share | 🇮🇳 India (24.9%) | 🌐 Global (—) |
| Direct Visits / mo | 442.07K | 0 |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Browser Extension |
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.
Turn a plain-language system description into a UML diagram in your browser
Type a description of your system — entities, responsibilities, interactions — and the extension returns a ready-to-review UML diagram instead of requiring manual drawing.
ChatGPT handles interpretation of the request while PlantUML does the rendering, combining LLM flexibility with deterministic diagram output.
Because it runs as a browser extension, it sits alongside the tabs you already use for coding, issue trackers, and documentation.
Designed for speed: what would take hours of dragging boxes and arrows in a desktop modeling tool becomes a prompt and a quick correction pass.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
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.
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.
SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
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.
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.
Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.
Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.
Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.
AI diagrams and technical design docs built from your code and systems
AI diagrams and technical design docs built from your code and systems
Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools.
AI-powered visual collaboration for diagrams, mind maps, and charts
AI-powered visual collaboration for diagrams, mind maps, and charts
One AI workspace for diagrams, docs, whiteboards and project delivery
One AI workspace for diagrams, docs, whiteboards and project delivery
