Privacy Policy
Last updated: June 11, 2026
Browser Data Tools is a privacy-first browser-based developer toolbox. This Privacy Policy explains what information may be collected, how the tools process data, and what choices you have when using this website.
1. Summary
The main purpose of Browser Data Tools is to provide useful developer utilities that run locally in your browser. For normal tool usage, the text, code, or file content you paste into a tool is processed on your device using client-side JavaScript and browser APIs.
- No account is required to use the tools.
- No login is required for the included tools.
- Tool input is designed to be processed locally in your browser.
- The site does not provide online saving or public sharing of tool output.
- Local file loading uses your browser’s File API instead of an upload API.
2. Tool input and browser processing
When you paste text into tools such as JSON Formatter, CSV to JSON, XML Formatter, Base64 Encoder/Decoder, JWT Decoder, URL Encoder/Decoder, or other utilities, the processing is designed to happen inside your browser.
Some tools may use Web Workers. A Web Worker is a browser feature that lets the page process data in the background so the interface stays more responsive. This does not mean your data is uploaded to a server.
When you load a local file, the file is read by your browser so the tool can process it locally. Generated downloads are created using browser Blob URLs.
3. Information we do not intentionally collect from tool usage
Browser Data Tools does not intentionally collect, store, or sell the text, code, JSON, CSV, XML, YAML, tokens, files, or other content you enter into the tool editors.
You should still avoid pasting highly sensitive production credentials, passwords, private API keys, customer records, financial data, medical data, or confidential business data into any online website unless your organization allows it.
4. Information collected automatically
Like most websites, Browser Data Tools may receive basic technical information automatically when you visit the site. This may include:
- Browser type and version.
- Device type and operating system.
- Pages visited.
- Approximate time of visit.
- Referring page or search engine.
- General diagnostic information used to improve performance and reliability.
Hosting providers may also process basic server logs for security, debugging, abuse prevention, and reliability.
5. Local storage
The website may use browser local storage to remember small preferences, such as your selected light or dark theme. Tool input is not intentionally stored in local storage by default.
Local storage is stored in your browser on your device. You can clear it from your browser settings at any time.
6. Cookies
The core tools do not require account cookies because the tools do not require login. However, the website may use cookies or similar browser technologies for site preferences, analytics, security, advertising, or performance measurement.
You can control or block cookies through your browser settings. Blocking some cookies may affect certain site features or measurement tools, but the main browser-based utilities should remain usable where possible.
7. Analytics
Browser Data Tools may use privacy-conscious analytics or standard website analytics to understand which pages are useful, how users discover the site, and where improvements are needed.
Analytics should be used to measure page-level usage and technical performance, not to collect the private content you paste into tool editors.
8. Advertising
Browser Data Tools may display advertising in the future to help keep the tools free. Advertising partners may use cookies or similar technologies to show, measure, and improve ads.
Ads should not be placed inside the input editor, output editor, copy button, download button, or main tool processing workflow. The goal is to keep advertising separate from the utility experience.
If third-party advertising services are added, those services may process information according to their own privacy policies and advertising controls. Third-party vendors, including Google, may use cookies or similar technologies to serve ads based on visits to this site and other websites.
Google's advertising cookies may enable Google and its partners to serve ads based on your visit to Browser Data Tools and other sites. You can manage personalized advertising through Google's ad settings and other industry opt-out tools where available.
9. Third-party services
The website may rely on third-party services for hosting, analytics, performance, security, search indexing, or advertising. These providers may process limited technical data as needed to provide their services.
Examples may include hosting platforms, domain providers, analytics providers, search tools, or advertising networks.
10. Email contact
If you contact Browser Data Tools by email, we may receive your email address, message content, and any information you choose to include.
Please do not send private tokens, production credentials, passwords, API keys, customer data, confidential files, medical records, financial records, or other sensitive information by email.
11. Data security
Browser Data Tools is designed to reduce unnecessary data transfer by processing tool input locally in the browser where possible. However, no website or browser-based system can guarantee perfect security.
You are responsible for deciding whether a browser-based tool is suitable for your data and for following your organization’s security and privacy rules.
12. Children’s privacy
Browser Data Tools is intended for general technical and developer use. It is not designed specifically for children and does not knowingly collect personal information from children.
13. Your choices
- You can use the tools without creating an account.
- You can clear browser local storage from your browser settings.
- You can block or delete cookies through your browser settings.
- You can choose not to email private or sensitive information.
- You can stop using the site if you do not agree with this policy.
14. Changes to this Privacy Policy
This Privacy Policy may be updated from time to time as the website, tools, analytics, advertising, or legal requirements change. The updated date at the top of this page will show when the policy was last revised.
15. Contact
For privacy questions, bug reports, correction requests, or feedback, contact: