Base64 Encoder and Decoder

0 chars 0 words 0 lines
📁 Drop file here to convert
0 chars 0 words 0 lines

Key Features

Instant Conversion

Encode and decode Base64 strings instantly. No waiting, no page reloads.

🌍

UTF-8 Support

Fully supports UTF-8 characters, including emojis and non-Latin scripts.

🔒

Secure & Private

All conversions happen locally in your browser. Your data never leaves your device.

Base64 Encoding Examples

Hello World
SGVsbG8gV29ybGQ=
Base64
QmFzZTY0
123456789
MTIzNDU2Nzg5
🔒 Secure
8J+UkCBTZWN1cmU=

About Base64 Encoding

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is designed to carry data stored in binary formats across channels that only reliably support text content.

Why Use Base64?

Base64 is commonly used in:

  • Email Attachments: Sending binary files via email systems designed for text.
  • Data URIs: Embedding small images or fonts directly into HTML/CSS.
  • APIs: Transmitting binary data in JSON or XML formats.
  • Authentication: Encoding credentials in HTTP headers.

How to Use This Tool

  1. To Encode: Type text into the input box and click "Encode".
  2. To Decode: Paste a Base64 string and click "Decode".

Frequently Asked Questions

Is Base64 encryption?

+

No, Base64 is an encoding scheme, not encryption. It does not secure data; it simply changes its representation. Anyone can decode Base64 back to the original data.

Does this tool handle images?

+

Currently, this tool is optimized for text strings. For images, you would typically need a file-to-Base64 converter.

Why does Base64 end with =?

+

The equals sign (=) is used as padding in Base64. Base64 encodes data in groups of 3 bytes (24 bits) into 4 characters. If the input data isn't a multiple of 3 bytes, padding is added to make the output a multiple of 4 characters.

Can I use Base64 for passwords?

+

No! Base64 encoding is not secure for storing passwords. Use proper hashing algorithms like bcrypt, Argon2, or PBKDF2 for password storage. Base64 is easily reversible and provides no security.

What characters does Base64 use?

+

Standard Base64 uses 64 characters: A-Z (uppercase), a-z (lowercase), 0-9 (digits), + (plus), and / (slash). The character = is used for padding. There are also URL-safe variants that replace + and / with - and _.