LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. CielChan (phasma.ai) records 23 monthly visits with 0% growth and Freemium pricing.
Free AI-powered PDF editor, converter and reader for every device
An offline desktop AI companion that talks, remembers you, and keeps you company
| Dimension / Metric | | |
|---|---|---|
| Official Domain | lightpdf.com | phasma.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.74M (1,742,568) | 23 (23) |
| MoM Traffic Delta | -314.58K (-15.3%) | +23 (0%) |
| Primary Market & Share | 🇮🇳 India (24.9%) | 🇯🇵 Japan (100%) |
| Direct Visits / mo | 442.07K | 8 |
| 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.
An offline desktop AI companion that talks, remembers you, and keeps you company
Natural two-way voice chat plus full text chat, all processed locally on your PC with no accounts, API keys, or data leaving your machine.
Ciel remembers who you are and your past conversations, becoming more familiar the more time you spend together.
An expressive avatar with emotions, gestures, and lip sync that optionally reacts to your apps, media, and activity with subtle comments.
Focus sessions, quick tasks and notes, reminders, ambient soundscapes, and a TXT/EPUB book reader with narration — plus minigames like Tic-Tac-Toe.
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.
Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Enterprise-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.
The AI editor built for finishing books, screenplays and long-form stories
The AI editor built for finishing books, screenplays and long-form stories
Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools.
AI book-writing suite that keeps your own author voice
AI book-writing suite that keeps your own author voice
Features interactive PDF chat and form filling, but has fewer advanced desktop editing and conversion options.
Features interactive PDF chat and form filling, but has fewer advanced desktop editing and conversion options.
