Cookie and Advertising Disclosure
Last updated: June 11, 2026
This page explains how Browser Data Tools may use cookies, browser local storage, analytics, and advertising technologies. It also explains how these technologies relate to the privacy-first design of the tools.
1. Browser-based tool processing
Browser Data Tools is designed so normal tool input is processed locally in your browser. When you paste JSON, CSV, XML, YAML, Base64, JWT, text, or other supported data into a tool, the tool runtime is designed to process that input on your device using client-side JavaScript and browser APIs.
Cookies, analytics, or advertising technologies should not be used to collect the private content you paste into the tool editors.
2. What are cookies?
Cookies are small text files stored by your browser. Websites may use cookies to remember preferences, measure site usage, improve security, or support advertising and analytics.
Similar technologies may include local storage, session storage, pixels, tags, or other browser-based identifiers.
3. Local storage
Browser Data Tools may use browser local storage for small site preferences and interface behavior. This may include:
- Theme preference, such as light or dark mode.
- Small interface state values.
- Tool usage count used for basic interface notices.
- Whether a temporary notice has been dismissed.
Local storage stays in your browser on your device. You can clear it at any time from your browser settings.
4. Essential cookies and storage
The core tools do not require a login account, so they do not need account-session cookies for normal usage. However, some cookies or local storage may be used to support basic site functionality, preferences, security, or performance.
5. Analytics
Browser Data Tools may use analytics to understand how people discover and use the website. Analytics can help identify useful pages, broken pages, performance problems, and areas where the interface can be improved.
Analytics should be used for page-level and technical measurement, not to collect the private text, code, or files you paste into the tool editors.
6. Advertising
Browser Data Tools may show advertising in the future to help keep the tools free. Advertising may be provided directly or through third-party advertising networks.
Advertising partners may use cookies or similar technologies to show ads, measure ad performance, prevent fraud, limit repeated ads, and understand general ad effectiveness.
Ads should not be placed inside the input editor, output editor, copy button, download button, or main processing workflow. The goal is to keep advertising separate from the tool experience.
7. Google AdSense and third-party ad networks
If Google AdSense or another third-party ad network is added in the future, that network may use cookies or similar technologies according to its own policies. Third-party vendors, including Google, may use cookies to serve ads based on a user's prior visits to this website or other websites.
Google's advertising cookies may enable Google and its partners to serve ads based on visits to Browser Data Tools and other websites. Third-party advertising services may use information such as page visits, approximate location, browser information, device information, and ad interactions to provide and measure advertising.
Users can manage personalized ads through Google ad settings and other industry opt-out choices where available. If ads are enabled, they should be visually separated from tool actions and labeled only as advertising or sponsored links.
8. Sponsored placements
The site may also include direct sponsorships or developer-focused ad placements in the future. Sponsored content or ad placements should be visually separated from the tool input and output areas.
9. Your choices
You can control cookies and local storage in several ways:
- Block or delete cookies using your browser settings.
- Clear local storage from your browser settings.
- Use private or incognito browsing mode.
- Use browser privacy controls or content blocking settings.
- Choose not to use the site if you do not agree with this disclosure.
Blocking cookies may affect analytics, advertising, or preference storage. The main browser-based tools should remain usable where possible.
10. No sale of tool input
Browser Data Tools does not intentionally sell the JSON, CSV, XML, YAML, text, tokens, files, or other content you paste into the tool editors. The site is designed around local browser processing for normal tool usage.
11. Changes to this disclosure
This Cookie and Advertising Disclosure may be updated when the website changes, when analytics or advertising tools are added or removed, or when legal or platform requirements change.
12. Contact
For questions about cookies, advertising, privacy, or tool behavior, contact: