Cookies and storage
Almost everything the site uses lives in your browser and can be deleted whenever you like.
Last updated: October 8, 2026
What they are
Cookies are small files that a site stores in your browser. There are other similar technologies, such as local storage (localStorage) and browser databases (IndexedDB). On this page we call all of them “cookies and storage.”
What we use
Herramientas Web does not set any first-party cookies. We use only the following local data, which is needed for the site to work the way you expect:
| Name | Type | Purpose | Duration |
|---|---|---|---|
| hw.theme | localStorage | Remembers whether you chose the light or dark theme | Until you delete it |
| hw.recent | localStorage | List of recently used tools | Until you delete it |
| hw.country | localStorage | The country you picked in a country section’s selector, to show its tools in the menu. It only exists if you pick one; “Use my location” deletes it | Until you delete it |
| hw-handoff | IndexedDB | Passes a file from one tool to another inside your browser; it is deleted when received or after 5 minutes | Temporary |
Analytics
We may measure visits with Cloudflare Web Analytics, which does not use cookies and does not identify people across sites.
Contact form verification
On the Contact page we use Cloudflare Turnstile to tell people apart from automated submissions. Turnstile does not use tracking cookies or profile your browsing across sites: it only evaluates the request to confirm that it is not a robot, and its script is loaded only on that page and only when you start using the form. If you prefer not to use it, you can write to us directly at [email protected].
Third-party advertising
When advertising is active, Google AdSense and its partners may store cookies in your browser to show ads and measure their performance. These are the ones Google commonly uses:
| Provider | Cookie | Purpose | Approximate duration |
|---|---|---|---|
| __gads, __gpi | Show and measure ads, limit their frequency | Up to 13 months | |
| IDE, DSID | Personalize ads and measure conversions (DoubleClick) | Up to 13 months |
If you access the site from the European Economic Area, the United Kingdom, or Switzerland, advertising cookies are used only if you give your consent in the notice shown when you arrive, and you can change it whenever you like.
How to manage them
- In your browser settings you can delete or block cookies and site data. If you clear local storage, your theme and recent tools are reset.
- To manage Google ad personalization, visit adssettings.google.com.
- More options at aboutads.info and youronlinechoices.eu.
More information
Read our privacy policy or write to us at [email protected].