Build powerful forms, surveys and quizzes with AI in minutes
Instafill.ai records 35,630 monthly visits with -36.6% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. LightFill records 0 monthly visits with — growth and Contact for Pricing pricing.

An AI form filler that reads your documents and completes online forms in one click.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | instafill.ai | chromewebstore.google.com |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Contact for Pricing |
| Monthly Visits | 35.63K (35,630) | 0 (0) |
| MoM Traffic Delta | -20.6K (-36.6%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (68.3%) | 🌐 Global (—) |
| Direct Visits / mo | 7.63K | 0 |
| User Rating | 4.3 | 3.5 |
| Supported Platforms | Website | Browser Extension |

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.

An AI form filler that reads your documents and completes online forms in one click.
Reads structured values out of ID cards, passports, invoices and other documents instead of asking you to type them.
Maps extracted values into the fields of the web form you are looking at, so a completed form is one action away.
Built to handle multiple document layouts and the varied field arrangements of administrative and checkout forms.
Removes the slow, mistake-prone copy-typing that dominates routine paperwork and online purchasing.
Build powerful forms, surveys and quizzes with AI in minutes
A free, AI-powered PDF editor for every device

Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
Chat with any PDF, video, or website and get cited answers in seconds
Chat with any PDF and get cited answers instantly
Chat with any PDF and add an AI chatbot trained on your own content
Chat with any PDF and add an AI chatbot trained on your own content

Turn any PDF into editable, translatable, searchable knowledge

AI-powered data extraction from invoices, IDs, receipts and any business document
AI-powered data extraction from invoices, IDs, receipts and any business document

AI document data extraction and workflow automation for any file format
AI document data extraction and workflow automation for any file format

SpecialistFill out entire web forms in one click with an AI agent
SpecialistFill out entire web forms in one click with an AI agent
AI document translation for PDFs, decks and books that keeps the layout
AI document translation for PDFs, decks and books that keeps the layout