PRIVACY POLICY
EFFECTIVE DATE: SEPTEMBER 2026 · VERSION 1.0
1. SUMMARY: ZERO DATA LEAVES YOUR DEVICE
MustTools is architected from the ground up as a pure client-side utility suite. All operations performed on text, images, code, or data files are executed locally within your web browser using HTML5 Canvas, Web Cryptography, and ECMAScript engines. None of your inputs are transmitted across the internet to our servers.
2. COOKIES & LOCAL STORAGE
We do not use tracking cookies, behavioral ad pixels, or third-party profiling scripts. The only information written to browser localStorage is your chosen interface theme preference ("light" or "dark") to prevent visual flash on page navigation.
3. FILE HANDLING & UPLOADS
When you drop an image or data file into a MustTools drop zone, it is read into browser memory via the native FileReader API. No server upload occurs. When you close or refresh the browser tab, all in-memory data is instantly released.
4. THIRD-PARTY DEPENDENCIES
MustTools runs on static hosting edge servers (Vercel / Cloudflare). We do not include Google Analytics, Facebook SDKs, or external marketing widgets. Web fonts are served locally alongside the application bundle.
5. CONTACT & AUDIT
If you have technical questions regarding our client-side architecture or would like to verify compliance, you can inspect all execution logic directly via browser DevTools or contact our engineering team at [email protected].