Developer Tools

Base64 Encoder/Decoder

Convert text and files to Base64 encoding and back. Useful for embedding images in HTML/CSS, encoding data for APIs, and handling binary data in text-based formats.

100% Secure

Client-side only

Super Fast

Instant results

24/7 Available

Always free

10M+

Active Users

50M+

Files Processed

60+

Languages

4.9

User Rating

What It Does

Our Base64 Encoder/Decoder converts binary data (like images, files, or text) into ASCII text format that can be safely transmitted over text-based protocols. Base64 encoding is essential for embedding images directly in HTML or CSS, encoding data for APIs, and handling binary data in JSON or XML. The tool can encode text, files, and images, and decode Base64 strings back to their original format. All encoding and decoding happens in your browser, ensuring your data never leaves your device.

Why It's Useful

Base64 encoding is crucial for web development, API integration, and data transmission. It allows you to embed images directly in HTML/CSS without separate image files, encode binary data for JSON APIs, and safely transmit data over text-based protocols. It's essential for web developers, API developers, and anyone working with data encoding. The tool saves time by handling encoding/decoding automatically instead of writing custom code.

Helpful Tips

1

Use Base64 to embed small images directly in HTML/CSS

2

Encode binary data for JSON APIs that require text format

3

URL-safe Base64 is better for use in URLs and query parameters

4

Base64 increases file size by about 33%, so use wisely

5

Perfect for embedding small icons and images in web pages

6

Decode Base64 strings to recover original files or text

How It Works

Simple & Easy Steps

Get started in seconds. No technical knowledge required.

1

Choose encode or decode mode

2

Enter text or upload a file

3

View the result instantly

4

Copy or download the output

Features

Why Choose Us

Everything you need for the perfect experience

100% Private

Your files are processed entirely in your browser. Nothing is uploaded to servers.

Lightning Fast

Instant results without waiting for uploads or server processing.

Always Free

No hidden fees, no premium plans, no usage limits. Free forever.

Text encoding

Text decoding

File encoding

URL-safe output

Copy output

Download decoded

FAQ

Questions & Answers

Everything you need to know about base64 encoder/decoder

Base64 is an encoding scheme that represents binary data in ASCII text format using 64 characters (A-Z, a-z, 0-9, +, /). It's commonly used to embed binary data (like images) in text-based formats like HTML, CSS, JSON, or XML.