Base64 Encoder/Decoder

Base64 Encoder/Decoder

Represents wisdom, communication, and the faithful transmission of messages.

When is Base64 Encoding Useful?

Base64 is a group of binary-to-text encoding schemes. It is commonly used when there is a need to encode binary data (like images or files) that needs to be stored and transferred over media that are designed to deal with textual data.

Embedding Images (Data URIs)

Instead of linking to an image file (e.g., <img src="logo.png" />), you can embed the image directly into HTML or CSS using Base64. This reduces HTTP requests and speeds up page loading for small icons.

Email Attachments (MIME)

Email protocols (SMTP) were originally designed for text. To send attachments like PDFs or images, email clients encode them in Base64 to turn binary data into safe ASCII text characters.

URL Safe Base64

Standard Base64 uses the characters + and /, which can cause issues in URLs (where + means space and / is a separator).URL Safe Base64 replaces these with - and _ respectively, making the string safe to use in web addresses and query parameters.

Frequently Asked Questions

What is Base64 encoding?
Base64 is a way to represent binary data (like images or files) using only 64 ASCII characters. It ensures data remains intact during transport over protocols that might otherwise mangle binary content.
Is my data secure?
Yes. All processing happens locally in your browser. We never upload your text or files to our servers.
Can I convert images to Base64?
Yes! Switch to 'Encode' mode and upload an image file. The tool will generate the Base64 string that you can use in HTML or CSS.
Does this support emojis?
Yes. Our tool correctly handles UTF-8 characters, so emojis and non-Latin scripts are encoded and decoded without errors.