Base64 Encode Decode
Need to encode text to Base64 or decode it back? Our Base64 Encode Decode tool handles both directions instantly, with support for strings and files.
What Is
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format, commonly used for embedding images in HTML, encoding email attachments, and data transfer.
How to Use
- Type or paste your text into the input field
- Choose Encode to convert text to Base64
- Choose Decode to convert Base64 back to text
- The result appears instantly with a copy button
- Optionally upload a small file to encode it
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Frequently Asked Questions
What is Base64 used for?
Common uses include embedding images in HTML/CSS, encoding binary data in JSON, email attachments (MIME), and storing binary data in databases.
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. Anyone can easily decode Base64 data. Never use it to protect sensitive information.
Does Base64 make data larger?
Yes, Base64 encoding increases data size by approximately 33% compared to the original binary data.
Can I encode a file with this tool?
Yes, you can upload small files (up to 10MB) to encode them to Base64 format.
What characters does Base64 use?
Base64 uses A-Z, a-z, 0-9, plus (+) and forward slash (/), with equals sign (=) for padding.