What is Base64 encoding?

Base64 is an encoding scheme that converts binary or text data into a string of ASCII characters using 64 printable characters. It is widely used to embed binary content such as images or files into text formats like JSON, XML, HTML, and email.

When should I use Base64?

Use Base64 when you need to include binary data inside a text format — for example, embedding images directly in HTML or CSS as data URLs, encoding API credentials for HTTP Basic Auth headers, or storing binary data in JSON.

Does Base64 encrypt my data?

No. Base64 is encoding, not encryption. Anyone can decode a Base64 string in seconds. Never use Base64 to hide sensitive information — use proper encryption instead.

Does this support Unicode and emoji?

Yes. We use UTF-8 safe encoding via encodeURIComponent, so accented characters, emoji, Chinese, Arabic, and other non-Latin scripts are handled correctly.

Base64 Encoder / Decoder

Encode or decode Base64 text instantly in your browser.

Plain Text Input

Base64 Output

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About Base64 Encoder / Decoder

Free online Base64 encoder and decoder. Convert plain text or UTF-8 strings to Base64 encoding, or decode Base64 back to readable text. Handles Unicode, emoji, and non-Latin scripts correctly. Used by developers for API tokens, embedding images in CSS, and passing binary data through text-only systems.

How to Use Base64 Encoder / Decoder

Select Encode or Decode mode using the toggle at the top.
Paste your plain text or Base64 string into the input field.
The encoded or decoded result appears instantly in the output panel.
Click Copy to copy the output to your clipboard.

Frequently Asked Questions

What is Base64 encoding?: Base64 is an encoding scheme that converts binary or text data into a string of ASCII characters using 64 printable characters. It is widely used to embed binary content such as images or files into text formats like JSON, XML, HTML, and email.
When should I use Base64?: Use Base64 when you need to include binary data inside a text format — for example, embedding images directly in HTML or CSS as data URLs, encoding API credentials for HTTP Basic Auth headers, or storing binary data in JSON.
Does Base64 encrypt my data?: No. Base64 is encoding, not encryption. Anyone can decode a Base64 string in seconds. Never use Base64 to hide sensitive information — use proper encryption instead.
Does this support Unicode and emoji?: Yes. We use UTF-8 safe encoding via encodeURIComponent, so accented characters, emoji, Chinese, Arabic, and other non-Latin scripts are handled correctly.

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Base64 Encoder / Decoder

Encode or decode Base64 text instantly in your browser.

Plain Text Input

Base64 Output

Ad Placeholder

About Base64 Encoder / Decoder

How to Use Base64 Encoder / Decoder

Select Encode or Decode mode using the toggle at the top.
Paste your plain text or Base64 string into the input field.
The encoded or decoded result appears instantly in the output panel.
Click Copy to copy the output to your clipboard.

Frequently Asked Questions

What is Base64 encoding?: Base64 is an encoding scheme that converts binary or text data into a string of ASCII characters using 64 printable characters. It is widely used to embed binary content such as images or files into text formats like JSON, XML, HTML, and email.
When should I use Base64?: Use Base64 when you need to include binary data inside a text format — for example, embedding images directly in HTML or CSS as data URLs, encoding API credentials for HTTP Basic Auth headers, or storing binary data in JSON.
Does Base64 encrypt my data?: No. Base64 is encoding, not encryption. Anyone can decode a Base64 string in seconds. Never use Base64 to hide sensitive information — use proper encryption instead.
Does this support Unicode and emoji?: Yes. We use UTF-8 safe encoding via encodeURIComponent, so accented characters, emoji, Chinese, Arabic, and other non-Latin scripts are handled correctly.