Base64 Encoder/Decoder

Encode and decode Base64 text with support for URL-safe mode and chunk splitting.

Base64 Encoder/Decoder

Input Text

Output Options

Result will appear here

How It Works

1

Enter Your Text

Type or paste your text into the input area. You can enter any text including special characters, emojis, and multilingual content.

2

Choose Options

Enable URL-safe mode for web URLs, or split into 76-character lines for MIME compatibility. These options are optional.

3

Encode or Decode

Click "Encode to Base64" to convert text to Base64, or "Decode from Base64" to convert Base64 back to original text. View statistics and copy the result.

Encode and decode Base64 text with support for URL-safe mode and chunk splitting.

This Base64 Encoder/Decoder converts text to and from Base64 format with advanced options. Encode any text including emojis and special characters to Base64, or decode Base64 back to original text. Supports URL-safe mode for web URLs and line splitting for MIME compatibility. All processing happens locally in your browser with UTF-8 support for international characters. Perfect for developers working with APIs, embedding images in HTML, or transmitting binary data through text-based protocols.

All processing happens directly in your browser, ensuring your data remains private and secure. Our tool works on all devices - desktop, tablet, and mobile.

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Frequently Asked Questions

What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that converts binary data into ASCII text format. It represents binary data in a format that can be safely transmitted through text-based systems like email, HTML, and JSON. It uses 64 different characters (A-Z, a-z, 0-9, +, and /) to represent data.

What is URL-safe Base64?

URL-safe Base64 replaces the "+" and "/" characters with "-" and "_" respectively. This makes the Base64 string safe to use in URLs and file names without needing URL encoding. It also removes the "=" padding characters for cleaner URLs.

Does Base64 encoding support UTF-8 and special characters?

Yes! Our Base64 encoder properly handles UTF-8 encoding, which means it supports all Unicode characters including emojis (πŸ˜€), accented letters (Γ©, Γ±, ΓΌ), Chinese characters, Arabic text, and any other language. It first converts the text to UTF-8 bytes, then encodes those bytes to Base64.

Why would I split Base64 into lines?

Line splitting (76 characters per line) is used for MIME email standards and some legacy systems. It makes long Base64 strings more readable and compatible with older email clients. Modern applications typically don't need line splitting, but it's available if you need it.

Is Base64 encryption or encoding?

Base64 is encoding, NOT encryption. It converts data to a different format for transmission, but it's not secure. Anyone can decode Base64 easily. For sensitive data, use proper encryption like AES-256 (available in our Text Encryptor tool). Base64 is commonly used for embedding images in HTML, sending binary data in JSON, and encoding email attachments.

About Base64 Encoder/Decoder

Base64 Encoder/Decoder is an essential developer tool for converting between text and Base64 encoding format. Base64 encoding is widely used for transmitting binary data through text-based protocols like email (SMTP), HTTP, and JSON. It converts binary data into ASCII text using 64 different characters, making it safe for transmission through systems that only support text. Our encoder properly handles UTF-8 encoding, supporting all Unicode characters including emojis, Chinese characters, Arabic text, and special symbols. The URL-safe mode replaces "+" and "/" with "-" and "_" for use in URLs and file names without additional encoding. Line splitting option formats the output into 76-character lines per MIME standards for email compatibility. Whether you're a web developer embedding images in HTML or CSS, a backend engineer working with APIs, a mobile developer handling data transmission, a data engineer processing binary formats, or anyone needing to encode or decode Base64 data, this tool provides instant conversion with detailed statistics showing original and result lengths. Perfect for encoding images for data URIs, preparing data for JSON APIs, decoding API responses, handling email attachments, working with authentication tokens, or any scenario where binary data needs to be represented as text. Understand the size overhead of Base64 encoding (approximately 33% increase), compare different encoding options, and ensure proper UTF-8 handling for international content with this comprehensive Base64 tool.

Unlike many online tools that require account creation or have hidden costs, Base64 Encoder/Decoder is completely free and requires no signup. Simply open the tool and start using it immediately. Your privacy is our priority - all processing happens locally in your browser, and your data is never stored on our servers.

Whether you're a professional, student, or casual user, Base64 Encoder/Decoder is designed to be intuitive and efficient. Our tool works seamlessly on desktop computers, tablets, and mobile devices, ensuring you can get your tasks done wherever you are.