Instafill.ai records 35,630 monthly visits with -36.6% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. LightPDF records 1,742,568 monthly visits with -15.3% growth and Freemium pricing.
AI that fills your PDF and Word forms for you
Free AI-powered PDF editor, converter and reader for every device
| Dimension / Metric | | |
|---|---|---|
| Official Domain | instafill.ai | lightpdf.com |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 35.63K (35,630) | 1.74M (1,742,568) |
| MoM Traffic Delta | -20.6K (-36.6%) | -314.58K (-15.3%) |
| Primary Market & Share | 🇺🇸 United States (68.3%) | 🇮🇳 India (24.9%) |
| Direct Visits / mo | 7.63K | 442.07K |
| User Rating | 4.3 | 4.2 |
| Supported Platforms | Website | Website |
AI that fills your PDF and Word forms for you
Automatically detects and maps every field in a flat PDF or Word form, using semantic understanding rather than rigid templates.
Each filled field can display its source and the reasoning behind the value, making verification fast and auditable.
Runs concurrent parallel field filling and handles structured row data, so multi-form packets and repeating tables are completed together.
An MCP server lets you fill PDFs from inside Claude Desktop, Code, or ChatGPT, plus n8n and Zapier automations for wider workflows.
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.
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.
Build powerful forms, surveys and quizzes with AI in minutes
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.
Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools.
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.
SpecialistDelivers superior OCR accuracy for converting complex PDFs and scans, but lacks general-purpose PDF editing tools.
