Privacy Policy

Last updated: October 18, 2026

This Privacy Policy explains what information is collected when you visit CSSTools.io (csstools.io), how it is used, and the choices you have. CSSTools.io is a free collection of CSS generators, validators, minifiers and converters, a gradient collection, color shade references and CSS guides, available in English, Spanish, Portuguese and Chinese.

1. Who we are

CSSTools.io ("we", "us", "our") is operated by an individual, not by a registered company. We are the data controller responsible for the personal information described in this policy. You can contact us at any time at privacy@csstools.io.

2. The short version

• You can use the whole website without creating an account or giving us your name or email.
• Every tool runs entirely in your web browser. The code and values you enter are processed on your device and are not uploaded to our servers.
• We use Google Analytics to understand how the website is used.
• We show, or may show, advertising from third-party partners such as Google, which may use cookies.
• Visitors in the European Economic Area, the United Kingdom and Switzerland are asked for consent before cookies that are not strictly necessary are used.

3. Information we collect

Information you type into our tools

Every tool runs entirely in your web browser. The code and values you enter are processed on your device and are not uploaded to our servers. This includes the code, colors and settings you enter into our tools.

Information collected automatically

Like most websites, when you visit CSSTools.io some information is collected automatically by our service providers:

• Usage data (Google Analytics): pages you visit, how long you stay, how you arrived (for example from a search engine), and general device information such as browser type, operating system, screen size and approximate location (country or city). Google Analytics 4 does not log or store full IP addresses.
• Technical and security data (Cloudflare): our website is delivered and protected by Cloudflare, which processes your IP address and request details to deliver pages quickly and to block abusive traffic.
• Advertising data: if ads are shown, our advertising partners may collect information such as your IP address, device identifiers, browser information and pages visited, as described in section 5.

Information you send us

If you email us, we receive your email address and the contents of your message. We use it only to reply to you.

4. Cookies and similar technologies

Cookies are small text files stored on your device. We and our partners use them for these purposes:

• Strictly necessary: security and performance cookies set by Cloudflare (for example to distinguish real visitors from bots).
• Analytics: Google Analytics cookies (such as _ga and _ga_*) that help us understand how visitors use the website.
• Advertising: cookies set by our advertising partners to show ads, limit how often you see the same ad, measure ad performance and, with your consent where required, show personalised ads.

We also store a small amount of information directly in your browser (local storage). It never leaves your device and we cannot see it:

• Theme preference: Remembers whether you chose the light or dark theme.

You can delete it at any time by clearing your browser's site data.

You can block or delete cookies in your browser settings. Most of the website will keep working, but some features, such as remembered preferences, may not.

5. Advertising

To keep CSSTools.io free, we display, or may display, advertisements served by third-party advertising partners, such as Google. Our partners may use cookies, web beacons and similar technologies to collect information about your visits to this and other websites in order to provide ads that may interest you.

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this website and/or other websites on the Internet.
• You can learn how Google uses information from sites that use its services at policies.google.com/technologies/partner-sites.

How to opt out of personalised ads

• Google: My Ad Center (Google's ad settings).
• Other participating companies (United States): optout.aboutads.info.
• Other participating companies (Europe): youronlinechoices.eu.

If you opt out, you will still see ads, but they will be less relevant to you. We do not control the cookies used by advertisers; please check their privacy policies for details. We will list the specific advertising partners we work with in this section.

6. How we use information

• To provide, maintain and secure the website.
• To understand which pages and tools are useful and to improve them.
• To show advertising that keeps the website free.
• To reply to messages you send us.

We do not sell your personal information for money, and we never ask for sensitive information such as passwords or payment details.

7. Legal bases (EEA, UK and Switzerland)

Where data protection laws such as the GDPR apply, we rely on: your consent for analytics and advertising cookies (which you can withdraw at any time through the cookie settings link on our website or your browser); our legitimate interests in operating a secure, reliable website (for example Cloudflare security processing); and your request when we reply to your messages.

8. Who we share information with

We share information only with service providers that help us run the website:

• Cloudflare, Inc.: hosting, content delivery and security.
• Google LLC: Google Analytics and, when ads are shown, advertising.
• Other advertising partners: as described in section 5.

We may also disclose information if required by law or to protect the rights and safety of our users or the website.

9. International transfers

Our service providers may process information in countries other than your own, including the United States. Where required, these transfers are protected by appropriate safeguards such as the European Commission's Standard Contractual Clauses.

10. How long information is kept

• Google Analytics data is kept for up to 14 months and then deleted automatically.
• Cloudflare security and request logs are kept only for short periods, as described in Cloudflare's policies.
• Emails you send us are kept only as long as needed to handle your request.
• Information stored in your browser stays there until you delete it.

11. Your rights

Depending on where you live, you may have the right to access, correct or delete your personal information, to object to or restrict its use, to data portability, and to withdraw consent at any time. To use these rights, email privacy@csstools.io. We will respond within 30 days. If you are in the EEA, UK or Switzerland, you can also complain to your local data protection authority.

California residents

Under California law (CCPA/CPRA), you have the right to know what personal information is collected, to request its deletion, to correct it, and to opt out of the "sharing" of personal information for cross-context behavioral advertising. You can opt out of personalised advertising using the links in section 5 or by emailing us. We will not discriminate against you for using these rights.

12. Children's privacy

CSSTools.io is a general-audience website and is not directed at children under 13 (or under 16 in the EEA and UK). We do not knowingly collect personal information from children. If you believe a child has sent us personal information, please contact us and we will delete it.

13. Security

The website is served only over encrypted HTTPS connections and protected by Cloudflare. Because our tools run in your browser, the information you type into them is not transmitted to us. No method of transmission over the Internet is completely secure, but we take reasonable steps to protect information.

14. Changes to this policy

We may update this policy from time to time, for example when we add new features or advertising partners. The "Last updated" date at the top shows when it last changed. Significant changes will be highlighted on this page.

15. Contact

Questions about this policy or your information? Email privacy@csstools.io.