What is Base64 decoding?

Base64 decoding is the process of converting Base64 encoded data back into its original human-readable format. This encoding is often used to transfer data over media that is designed primarily for text, such as in email via MIME or for embedding images in web pages.

Is this Base64 decoder tool secure and private?

Yes. Your privacy is paramount. All decoding happens directly within your web browser (client-side). Your data is never sent to our servers for processing, ensuring your information remains completely private and secure.

Is this Base64 tool free to use?

Yes, our Base64 Decoder tool is completely free to use. There is no need to download or install any software.

Privacy Policy

This document was last updated on November 01, 2025.

Introduction

Welcome to Base64 Decode (base64decode.site). This Privacy Policy describes how information is handled when you use our online Base64 decoding tool ("Service"). Your privacy and data security are extremely important to us. By using the Service, you agree to the terms outlined in this policy.

Data Collection: What We Don't Collect

Core Tool Data: We want to be absolutely clear: The Base64 data you paste into our tool for decoding is processed entirely within your web browser (client-side) using JavaScript. This data is never sent to our servers, stored, logged, or viewed by us. Your input remains private to your session on your computer.

Personal Data: We do not collect any personally identifiable information (PII) such as your name, email address, phone number, or physical address through the use of the core tool functionality. No user accounts or sign-ups are required.

Data Collection: What May Be Collected (Non-Personal)

Like most websites, our web server may automatically log standard, non-personally identifiable information when you visit our site. This may include:

Your IP address (often anonymized or truncated)
Browser type and version
Operating system
Referring website
Pages visited on our site and time spent
Date and time of access

This general usage data helps us understand how the Service is used, monitor traffic, ensure security, and improve performance. It is not linked to any personal information.

Local Data Storage (Client-Side)

Recent Decodes History: Our Service offers a "Recent Decodes" feature for your convenience. This history (including any optional titles you assign) is stored exclusively in your browser's `localStorage`. This data resides only on your own computer and is not transmitted to our servers. You have full control over this data and can clear your history at any time using the provided buttons within the tool or through your browser's settings.

Cookies: We may use essential cookies minimally for basic site functionality. We avoid using tracking cookies beyond what is necessary for the services mentioned below (like analytics or future advertising).

Third-Party Services

To support the Service and understand usage patterns, we integrate the following third-party services:

Google Analytics: We use Google Analytics to gather anonymous statistics about site usage (e.g., page views, user location by region, browser type). This helps us understand user needs and improve the tool. Google Analytics collects data according to its own privacy policy. You can learn more here: Google Privacy & Terms.
Google AdSense: To keep this tool free, we use Google AdSense to display advertisements. Google AdSense uses cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this site and/or other sites on the Internet. Users may opt out of personalized advertising by visiting Ads Settings. Google collects and uses data according to its privacy policy.

These third-party providers collect, use, and share data according to their own privacy policies. We encourage you to review them. We do not share the Base64 data you input into the tool with these (or any other) third parties.

Use of Collected Non-Personal Data

Any non-personal data collected automatically or via third-party services like Google Analytics and Google AdSense may be used for the following purposes:

Operating and maintaining the Service.
Ensuring the security and performance of the website.
Monitoring traffic, preventing abuse, and troubleshooting errors.
Understanding how users interact with the Service to make improvements.
Displaying advertisements (via Google AdSense) to support the operational costs of the free tool.

Data Retention

Non-personal log data is retained only as long as necessary for security analysis and site traffic monitoring, typically for a limited period unless required for security investigations. Data stored in your browser's `localStorage` (Recent Decodes history) remains until you clear it. Data collected by third-party services is subject to their respective retention policies.

Data Security

We implement reasonable technical measures to protect the website itself. Since all Base64 conversion processing occurs client-side, the security of the data you input relies on the security of your own browser and computer. We transmit the website content to you over secure HTTPS connections.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify users of significant changes by updating the "last updated" date at the top of this policy. We encourage you to review this policy periodically. Your continued use of the Service after changes are posted constitutes your acceptance of the revised policy.

Contact Information

If you have any questions or concerns about this Privacy Policy, please contact us at: contact@base64decode.site.