Chat with a PDF
Question a document and get answers grounded in its content.
To chat with a PDF, text is extracted locally then sent to Claude AI (with your API key): answers are grounded in the document's content. Everything runs in your browser: the file is never uploaded to a server.
- 100% local processing
- 100% free
- No sign-up
How to
- Save your Claude API key (stored locally).
- Drop your PDF.
- Ask your questions in the chat.
Features
Answers grounded in the document
The AI answers from the text extracted from your PDF, not general knowledge: ideal for querying a contract, report or manual.
Local text extraction
Textual content is extracted in your browser; only that text (not the file) is sent to the API to form the answers.
Your own API key
You use your Claude key, stored locally: no middleman, no subscription to our service, you pay the AI at cost.
Model choice
Select the Claude model based on your need for quality, speed or cost.
Use cases
- Ask a precise question about a clause in a contract.
- Find a figure or date in a long report.
- Get a technical passage of a manual explained.
- Check what a document says without reading it all.
Your files never leave your device
Unlike most online PDF tools that upload your files to their servers, all processing happens right here, in your browser. No document is ever sent, stored or analyzed remotely: it's free, no sign-up, and private by design.
Frequently asked questions
- Is the file uploaded to a server?
- The file stays local; only the extracted text is sent to the Claude API via your key, to answer.
- Do I need an API key?
- Yes: the AI tools use your own Claude key, stored locally. You keep control and pay usage at cost.
- Are my questions stored?
- Not on our side: the exchange happens directly between your browser and the Claude API, without going through our servers.
- Are my files uploaded to a server?
- No. All processing happens in your browser: your files never leave your device.