Base64 Encoder & Decoder

Base64 Encoder & Decoder

Quickly encode text into Base64 or decode Base64 data back into its original readable form.

Base64 is commonly used when binary or text data needs to be safely represented using standard ASCII characters.

What is Base64?

Base64 is an encoding method that converts data into a sequence of letters, numbers and a small number of additional characters.

For example:

Hello World

encoded as Base64 becomes:

SGVsbG8gV29ybGQ=

The encoded value can then be safely included in systems that are designed primarily to handle text.

What is Base64 used for?

Base64 encoding is commonly encountered when working with:

• APIs and web services
• HTTP headers
• Email attachments
• Data URLs
• JSON and XML documents
• Certificates and cryptographic data
• Configuration files
• Development and debugging

It is particularly useful when binary data needs to be transported through a text-based format.

Encode text to Base64

Use the Base64 encoder to convert plain text into its Base64 representation.

For example:

Hello from the Playground!

becomes:

SGVsbG8gZnJvbSB0aGUgUGxheWdyb3VuZCE=

The resulting value can be copied and used wherever Base64-encoded data is required.

Decode Base64

The decoder performs the reverse operation, converting valid Base64 data back into its original content.

For example:

SGVsbG8gV29ybGQ=

becomes:

Hello World

This is useful when inspecting API responses, configuration values, authentication data or other encoded content.

Base64 is not encryption

Base64 should not be used to protect sensitive information.

It is an encoding format, not an encryption method. Anyone with access to a Base64 value can easily decode it without requiring a password or encryption key.

Base64 is designed to make data easier to transport between systems, not to make that data secret.

Base64 for developers

Most programming languages provide built-in functions for working with Base64, but an online encoder and decoder is useful when you need to quickly inspect or convert a value.

Use the tool for testing, debugging or converting Base64 data without needing to write a script or open a development environment.