Privacy
Your images stay on your device.
Privacy is not a feature we added. It is the architecture. Here is how and why.
1. No uploads. Ever.
ToolBox Image runs entirely in your browser. Every step — decoding, resizing, recompressing, encoding — happens on your device using WebAssembly and the native canvas. Your image data never leaves your device, never touches a server, and is never shared with third parties.
2. Analytics & Cookies
We use Cloudflare Web Analytics for anonymous, aggregated page view
counts — no personal data is collected by Cloudflare Analytics and no cookies are set by it.
The only thing we store in your browser is your theme preference
(light, dark, or system) in your localStorage.
3. No accounts required.
There is nothing to sign up for. Every tool is free, unlimited, and works the moment you open the page. We will never ask for your email address.
4. No fingerprinting.
We do not collect your IP address beyond what our CDN's raw logs record (standard HTTP, no application-level processing). We do not read your User-Agent beyond what the browser sends by default. We do not use canvas fingerprinting, font enumeration, or any other browser-side identification technique.
5. The one thing we do store.
Your theme preference (light, dark, or
system) is stored in your browser's localStorage
under the key toolbox-theme. This never leaves your
device. You can clear it at any time from your browser settings.
6. AdSense.
We participate in Google's AdSense program. Google uses cookies to serve personalized ads based on your visits to this site and other sites. You can opt out of personalized advertising by visiting Google's Ad Settings. Google's use of advertising cookies is governed by Google's Privacy Policy.
7. Open by default.
Our compression engine is built on open standards (WebAssembly, Canvas, the browser's native decoders). You can verify this yourself in DevTools.
8. Changes to this policy.
If we ever change anything material about how your data is handled, we will post a notice on this page and update the date below. The current architecture — entirely client-side — is the foundation of the product, so we do not anticipate any breaking changes here.
9. Contact.
Questions or concerns? Get in touch — we read every message.
Last updated: June 2026.