# TIFF to PNG

> TIFF to PNG is a Chrome extension that converts TIFF images to PNG, and PNG images back to TIFF, inside the browser: no uploads, no account, no network requests and no browser permissions.

This file is the summary. https://tiff.tools/llm-info/ is the same material in full, with a link to the page that carries each claim, and https://tiff.tools/privacy-policy/ is the authoritative statement about data. The website converts nothing itself: a conversion happens in the extension, on the reader's own machine.

## Facts

- Converts in both directions, from one window: TIFF to PNG, and PNG to TIFF. A file that is not of the type the chosen direction expects is skipped, with a count and a reason.
- The alpha channel survives the conversion: an image that was transparent stays transparent.
- A multi-page TIFF becomes one PNG per page, rather than only the first page being converted.
- Batch conversion: many files in one run, each finished file waiting on its own card, and a ticked selection collected into a single ZIP download.
- Conversion runs in the browser, in Web Workers and WebAssembly modules bundled inside the extension. No image, file name or file content is uploaded, transmitted or sent anywhere, and a converted image is held only in memory until it is downloaded.
- The extension requests no browser permissions at all and injects no scripts into the pages you visit.
- It makes no network requests, and cannot: a Content Security Policy sets `connect-src 'none'` and `form-action 'none'` on the extension's own pages. It works fully offline.
- It collects nothing: no account, no sign-up, no personal data, no analytics, no telemetry, no crash reports, no advertising identifiers, and no history of what was converted.
- It stores two settings on the device, in the extension page's own local storage: the theme and the compression level. No cookies, no `chrome.storage`, no cache of files.
- The website sets no cookies and runs no analytics, and keeps only the chosen theme in local storage. Its host, Cloudflare, records standard access logs.

## Pages

- [Landing page](https://tiff.tools/): what the extension does, how a conversion looks, the FAQ, and the install button.
- [Information about TIFF to PNG](https://tiff.tools/llm-info/): the product stated as facts, with the page that carries each claim.
- [Privacy policy](https://tiff.tools/privacy-policy/): on-device conversion, permissions, network activity, and the website's own server logs.

## Optional

- [Contact](mailto:cws.toolkit@gmail.com): privacy questions and requests.