Privacy Policy
Your privacy is our top priority at ToolStacck.
We believe that your data belongs to you. That's why we built ToolStacck to run entirely in your browser.
Last updated: February 03, 2026
Client-Side Processing
Unlike traditional online tools that upload your files to a server for processing, ToolStacck performs almost all operations locally within your web browser. Whether you are merging PDFs, compressing images, or formatting text, your files never leave your device.
Data Collection
We do not collect any personal information (PII). We do not have user accounts, and we do not ask for your email or phone number to use our tools.
Cookies & Analytics
We use local storage to save your preferences. We use Vercel Analytics to collect anonymous usage data to understand which tools are most popular. This data is aggregated and cannot be used to identify you.
Advertising (Google AdSense)
We use Google AdSense to display advertisements on our website. Google, as a third-party vendor, uses cookies (including the DoubleClick cookie) to serve ads to users based on their visits to this and other websites.
These cookies allow Google and its partners to show ads based on users' interests. You may opt out of personalized advertising by visiting:adssettings.google.com
For more information about how Google uses data from sites that use its services, please visit:policies.google.com/technologies/partner-sites
Detailed Breakdown
- Files: Your documents, images, and other files are processed using WebAssembly and JavaScript libraries running on your computer.
- Calculations: Financial and text calculations happen instantly in memory.
- External Links: Our site may contain links to other websites. We are not responsible for the privacy practices of those sites.