What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme. It translates any binary data (like an image, a PDF, or complex compiled code) into a standard ASCII string format consisting of 64 characters (A-Z, a-z, 0-9, +, and /).
If you've ever needed to embed an image directly inside an HTML or CSS file, or securely transmit a token via an HTTP header (like JWT or Basic Auth), you've used Base64. Our tool allows you to encode files to Base64 or decode strings back to plain text entirely on your device.
Frequently Asked Questions
Is Base64 an encryption method?
No! Base64 is encoding, not encryption. It does not use a secret key and anyone can easily decode a Base64 string back to its original form. Never use Base64 to hide passwords or sensitive information.
What does the "URL Safe" option do?
Standard Base64 uses the `+` and `/` characters, which have special meanings in web URLs. If you try to pass standard Base64 in a URL query string, it will break. Enabling "URL Safe Engine" replaces `+` with `-` and `/` with `_` (RFC 4648) so it can be safely transmitted in URLs.
Are my files copied to your server?
No. StudioLimb prioritizes your data privacy. The file processing APIs utilize your browser's native FileReader interface. If you select an image or document to encode, it stays 100% on your computer.