Is Base64 a form of encryption?

No. Base64 is an encoding scheme, not an encryption scheme. It is easily reversible by anyone, so it provides no security. It should never be used to protect sensitive data.

Does Base64 encoding increase file size?

Yes. The resulting Base64-encoded data is typically about 33% larger than the original binary data. This is an important trade-off to consider when deciding whether to embed assets using Base64.

Is my data sent to your server?

No. All encoding and decoding operations are performed directly in your browser using JavaScript. Your data is never sent to our servers, ensuring it remains completely private.

Base64 Encoder/Decoder

What is Base64 Encoding?

Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. In simpler terms, it's a way to convert any kind of data (like an image, a PDF, or even just text) into a safe and readable string of characters.

This is particularly useful when you need to transmit data over media that are designed to handle only plain text, such as embedding image data directly into a CSS file or sending a file within a JSON object.

Common Use Cases

Embedding Images: You can embed an image directly into an HTML or CSS file using a Base64 data URI (e.g., <img src="data:image/png;base64,iVBORw0KG..." />), which can reduce the number of HTTP requests a browser needs to make.
Data Transmission: Sending binary files as part of a text-based format like JSON or XML.
Basic Obfuscation: While not a form of encryption, Base64 encoding makes data unreadable at a glance, which can be useful for hiding simple strings.

Frequently Asked Questions (FAQs)

What is Base64 Encoding?

Common Use Cases

Embedding Images: You can embed an image directly into an HTML or CSS file using a Base64 data URI (e.g., <img src="data:image/png;base64,iVBORw0KG..." />), which can reduce the number of HTTP requests a browser needs to make.
Data Transmission: Sending binary files as part of a text-based format like JSON or XML.
Basic Obfuscation: While not a form of encryption, Base64 encoding makes data unreadable at a glance, which can be useful for hiding simple strings.

Base64 Encoder & Decoder