Base64 Encoder
Encode text to Base64
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings instantly.
Key Features & Highlights
Encode any text, string, or data to Base64 format instantly.
All encoding happens in your browser - your data stays private.
Properly handles Unicode characters, emojis, and international text.
See Base64 encoded output in real-time as you type or paste text.
Upload and encode files like images or documents to Base64.
Copy the Base64 encoded string to clipboard with a single click.
How to Use Base64 Encoder
Enter Your Text
Type or paste the text you want to encode into the input area.
Auto Encoding
Base64 encoded output appears instantly as you type.
Copy the Result
Click the copy button to save the encoded string to clipboard.
Use Anywhere
Paste the Base64 string in APIs, config files, or data URIs.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters. It's commonly used for encoding data in URLs, emails, and JSON.
Why use Base64 encoding?
Base64 is useful when you need to transmit binary data through systems that only support text, such as email attachments, JSON APIs, or data URIs in HTML/CSS.
Does Base64 encrypt my data?
No, Base64 is encoding, not encryption. Anyone can decode Base64 back to the original data. Use encryption tools for actual security.
Why is my Base64 output longer than input?
Base64 encoding increases size by approximately 33%. Every 3 bytes of input become 4 characters of Base64 output.
Does it support special characters?
Yes, the encoder properly handles UTF-8 characters including emojis, accented letters, Chinese characters, and all Unicode symbols.
Can I encode files with this tool?
Yes, most Base64 encoders support file uploads for encoding images, PDFs, and other binary files to Base64 strings.