Privacy Policy

Last updated: April 30, 2026

Stax ("we", "us", or "our") operates https://stax.tools. This page explains what data we collect, what we don't collect, and how the site is built to protect your privacy by default.

The short version

Tool input is never sent to our servers. Every tool runs entirely in your browser. Your JSON, files, code, or calculations stay on your device.
We use anonymous analytics. Google Analytics 4 and Microsoft Clarity collect aggregate, anonymous data about how visitors use the site (page views, scroll depth, rage-clicks). They do not see your tool input.
No accounts required for free tools. You can use everything on Stax without ever signing up.

Data we don't collect

We do not collect or store the content you enter into any tool (e.g. JSON you format, files you upload, calculations you run).
File processing tools (PDF, image) load files into your browser's memory only. Files are never uploaded to our servers.
We do not sell, rent, or share personal data with third parties for marketing.

Data we do collect

Anonymous usage analytics: page URL, referrer, device type, country (from IP, not stored), and aggregate event counts (e.g. "tool_used"). Provided by Google Analytics 4 and Microsoft Clarity.
Cookies: a single cookie to remember your consent choice. Analytics cookies load only after you accept the consent banner.

AI features (when applicable)

Some tools offer optional AI-assisted features (e.g. "Explain this regex"). When you click an AI button, the relevant input is sent to a third-party AI provider (OpenAI) for processing. Inputs are truncated to 15,000 characters and are not stored on our servers beyond a short-lived cache used to speed up identical requests. AI features are always opt-in — you have to click a button to trigger them.

Advertising

Free tools may display ads from third-party networks (such as Google AdSense or Carbon Ads) to fund the site. Ad networks may set their own cookies. You can use ad blockers without restriction. Pro users (when Pro launches) see no ads.

Your rights

Because we don't collect personal data tied to an account, there is nothing to delete or export. You can clear your browser cookies at any time to reset analytics consent.

Changes to this policy

We may update this policy as the site evolves (for example, when accounts and Pro features launch). The "Last updated" date at the top of this page reflects the most recent change.

Contact

Privacy questions? Reach us via the contact page.