# NullKit

> NullKit provides private browser tools for images, PDFs, QR codes, links, credentials, redaction, and file verification. Tools process selected content locally when their page states this explicitly.

## Core resources

- [Tool directory](https://nullkit.app/tools/): all public browser tools
- [How local processing works](https://nullkit.app/how-it-works/): the privacy boundary
- [Privacy](https://nullkit.app/privacy/): website and file handling
- [Machine-readable tool catalog](https://nullkit.app/ai/tools.json): inputs, outputs, categories, descriptions, and review dates

## Important boundary

llms.txt is a discovery index. Access policy is defined by robots.txt. Tool capabilities and limitations should be cited from the canonical tool page.