Base64 Encoder / Decoder
Encode and decode Base64 strings online for free. Convert text or binary data to Base64 format instantly.
About this tool
Base64 encoding converts binary or text data into an ASCII string format, making it safe to transmit over text-based protocols like HTTP, JSON, and email. Our free Base64 Encoder/Decoder lets you instantly encode any text to Base64 or decode Base64 strings back to plain text. Common uses include encoding images for CSS data URIs, encoding authentication credentials, and handling binary data in JSON APIs.
How to use Base64 Encoder
- 1Enter your text: Type or paste the text you want to encode into the input field.
- 2Choose encode or decode: Select whether you want to encode text to Base64 or decode a Base64 string back to text.
- 3Get the result: The result appears instantly. Click Copy to save it to your clipboard.
Frequently Asked Questions
What is Base64 encoding?
Base64 is an encoding scheme that converts binary data into a string of ASCII characters, making it safe to transmit in text-based formats.
When should I use Base64?
Use Base64 when you need to embed binary data (like images) in text formats like JSON, HTML, or CSS, or when sending data through systems that only support text.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption. It is easily reversible and provides no security. Do not use it to protect sensitive data.
Does this tool support Unicode?
Yes, the tool handles Unicode characters correctly by using UTF-8 encoding before Base64 conversion.