Policy
Privacy policy
Last updated: 13 November 2026 (Asia/Shanghai). This page will be revised if the site starts using analytics, accounts, or advertising.
The short version
No upload. Files never leave your device. Conversion and similar tools run in your browser, on your device. This site does not ask you to create an account, and the conversion tools are not designed to send your files to our servers.
How the tools process files
When you open a file such as a HEIC photo, it is read locally with the browser File APIs. Decoding and encoding happen in a Web Worker on your device. The resulting JPEG, PNG, or ZIP is saved with a normal browser download. Your original file is not posted to a conversion API.
Some tools need an open-source library delivered as JavaScript or WebAssembly (for HEIC, that is libheif, described on thelicenses page). That library is downloaded like any other site script. It runs in your browser; it is not a place where your photos are uploaded.
Accounts
You do not need an account to use the tools, and this version of the site does not offer sign-in.
Advertising
Display advertising is planned (for example Google AdSense) but is not enabled on this build. Layout slots for ads exist in the templates and stay hidden until advertising is turned on. If ads go live, this section will name the provider, describe what data they may collect, and link to their policy.
Analytics and logs
This build does not include a third-party analytics tag. The host that later serves the static files (for example Cloudflare Pages or Vercel) may keep ordinary request logs such as IP address, user agent, and the URL requested. We do not control those provider logs beyond the settings of the chosen host.
Cookies and local storage
The tools themselves do not require cookies. This build does not write conversion files into localStorage or send them in cookies. If a later feature needs local storage (for example a remembered JPEG quality setting), this policy will say so.
Children
The site is not directed at children under 13, and it does not knowingly collect personal information from them.
Policy updates
If the practices described here change, the date at the top of this page will change and the new text will apply from then on. Material changes — such as adding analytics or ads — will be described in the relevant sections.
Contact
A contact address will be published on this page when a public domain is in use. Until then, do not send personal files to an unpublished address; the tools are meant to be used in the browser.