Privacy Policy
Last updated: June 2026
Summary
ToolsStack does not collect, store, or transmit any personal data or tool input data. All tools run entirely in your browser using client-side JavaScript. No cookies are used for tracking. No analytics services are loaded. No data is ever sent to our servers because there are no application servers — the site is a collection of static HTML, CSS, and JavaScript files served by Cloudflare Pages.
Data Collection
We do not collect, store, or process any of the following:
- Personal information — No names, emails, or account data (there are no accounts)
- Tool input data — JSON, text, URLs, passwords, PDFs, images, or any content you use with our tools
- Usage analytics — No Google Analytics, no tracking scripts, no telemetry
- Cookies — No tracking cookies, no advertising cookies, no session cookies
- Device fingerprinting — No browser fingerprinting or device identification
Client-Side Processing
Every tool on ToolsStack processes data entirely within your browser. Here is how it works:
- You visit a tool page — static files (HTML, CSS, JS) are downloaded to your browser
- You enter or upload data — the data stays in your browser's memory
- JavaScript processes your data locally — no server communication occurs
- Results are displayed directly in the page — no round-trip to any server
You can verify this at any time by opening your browser's Developer Tools (F12), navigating to the Network tab, and using any tool. You will observe zero outbound data requests.
Third-Party Services
ToolsStack uses the following third-party services:
- Cloudflare Pages — Hosts and serves the static website files. Cloudflare may collect anonymized CDN-level metrics (e.g., request counts, bandwidth) as part of their standard service. See Cloudflare's Privacy Policy.
- CDN Libraries — Some tool pages load open-source JavaScript libraries from CDN (cdn.tailwindcss.com, cdnjs). These CDNs may log request-level data. No tool input data is included in these requests.
Data Security
Since your data never leaves your browser, there is no server-side data breach risk for tool input data. The site is served over HTTPS to protect the integrity of the code delivered to your browser. We recommend verifying sensitive operations by checking the Network tab when using any online tool, whether on ToolsStack or elsewhere.
Changes to This Policy
This privacy policy may be updated over time. Changes will be reflected on this page. The core principle — that your data stays on your device — will not change.
Contact
For privacy-related questions, email [email protected].