What is Base64 and what is it used for?

Base64 is an encoding system that converts binary data into plain text using 64 safe characters (A-Z, a-z, 0-9, +, /). It is used to transmit binary data through channels that only handle text, such as emails (MIME), JSON APIs, JWT tokens, and embedding images in HTML/CSS.

How to encode text to Base64?

To encode text to Base64, simply type or paste the text into the input field and select "Encode". The tool will automatically convert your text to Base64 format. The process is reversible: paste Base64 text and select "Decode" to get the original text back.

Is Base64 encryption? Is it secure?

No, Base64 is NOT encryption and does not provide security. It is merely encoding, not encryption. Anyone can decode Base64 easily without a key. Do not use Base64 to protect sensitive information. For real security, use algorithms like AES or RSA.

Where is Base64 used in programming?

Base64 is commonly used in: JWT tokens (the payload is Base64 encoded), embedded images in HTML (data:image/png;base64,...), email attachments (MIME), REST APIs for transmitting binary data in JSON, PEM certificate format, and HTTP Basic Auth headers (user:password encoded in Base64).

Base64 Encoder - What it is, how it works and why use it

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Why use the Base64 encoder?

The Base64 encoder lets you convert text to Base64 format and vice versa. It's useful for:

JWT Tokens: Decode JWT token payloads
APIs: Send binary data encoded in JSON
Emails: Encode attachments in MIME format
Debugging: Analyze encoded payloads in requests
Development: Work with binary data in plain text

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Why use the Base64 encoder?

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