BASE64 ENCODER / DECODER
Encode text to Base64 or decode Base64 back to plain text. Useful for data transmission and encoding binary data as ASCII.
Operation
What is Base64?
Base64 is an encoding scheme that converts binary data into ASCII text format. It uses 64 characters (A-Z, a-z, 0-9, +, /) to represent binary data, making it safe for transmission over protocols that only support text.
The encoding process transforms 3 bytes of binary data into 4 Base64 characters. This results in approximately 33% larger output than the original binary data.
Why Use Base64 Encoder / Decoder?
- Data transmission: Safely transmit binary data over text-based protocols.
- Email encoding: Embed images and attachments in emails.
- API data transfer: Send binary data in JSON format.
- Data storage: Store binary data in text-based databases.
How to Use Base64 Encoder / Decoder
- 1Select operation
Choose "Encode" to convert text to Base64, or "Decode" to convert Base64 to text.
- 2Enter your data
Paste the text or Base64 string you want to process.
- 3Convert
Click the button to get your converted result.
- 4Copy result
Use the copy button to copy the result to your clipboard.
Common Use Cases
JWT Tokens
Decode JWT tokens to inspect their payload data.
Data URIs
Create data URIs for embedding images in HTML/CSS.
API Authentication
Encode credentials for Basic Auth headers.
Email Attachments
Decode email attachments encoded in Base64.
Frequently Asked Questions
Is Base64 encryption?
No, Base64 is encoding, not encryption. It can be easily decoded back to the original data.
Why does my Base64 string end with ==?
The padding characters (=) are used to ensure the encoded string length is a multiple of 4.
Can I encode binary files?
Yes, you can encode any binary data, but for large files, consider using specialized tools.