Base64 Encoder/Decoder

Encode and decode data using Base64 encoding with advanced features

Quick Presets

New

Input

0 chars

Max 5MB • PNG, JPEG, PDF, TXT

Output

Encoded

Input Length

0

Output Length

0

Configuration

Choose the character encoding format

Current Mode
Encoding

Converting text to Base64 format

Advanced Options

About Base64

Base64 is a binary-to-text encoding scheme that represents binary data in ASCII format.

Common Uses:

  • Email attachments
  • Data URLs in HTML/CSS
  • API data transmission
  • Storing binary data in text format

Quick Actions

What is the Base64 Encoder/Decoder?

Think of the Base64 Encoder/Decoder as a universal translator for data. In the digital world, some systems can only handle text, while others need to move complex binary files like images or PDFs. Base64 bridges this gap by converting binary data into a safe, text-based format that can be easily transmitted over email, stored in databases, or embedded directly into HTML and CSS.

Whether you are a developer embedding a small icon into a stylesheet to reduce HTTP requests, or an IT professional decoding a legacy configuration string, our tool provides a high-performance environment for these operations. It is a browser-based "Swiss Army knife" that replaces clunky command-line tools with a modern, real-time interface.

Base64 Encoder/Decoder Interface Preview

How to Use the Base64 Encoder/Decoder?

  1. 1
    Choose Your Mode:

    Switch between the Encode (Text to Base64) or Decode (Base64 to Text) tabs depending on your data task.

  2. 2
    Input Data:
    Manual or File:Type directly into the input field for real-time conversion, or use the File Upload feature to process PNGs, JPEGs, or PDFs.
  3. 3
    Preview & Verify:

    For decoded content, toggle the Preview feature to render HTML or inspect the structure. Check the output field for instant results.

  4. 4
    Export:

    Click Copy () to grab the result, or Download to save the processed data as a local file. Use Reset () to clear the session.

Key Features

Real-time Conversion:High-speed processing engine that encodes or decodes your data instantly as you type.
Robust File Support:Easily handle images (PNG, JPEG), documents (PDF), and plain text files for bulk processing.
Multiple Encodings:Full support for various character sets including UTF-8, ASCII, and ISO-8859-1.
Live Preview:Built-in renderer allows you to visualize decoded HTML content or verify data integrity before export.
Smart Error Handling:Automatically detects invalid Base64 strings and provides helpful feedback for data correction.
Responsive Architecture:Fully optimized for all devices, allowing you to encode and decode data on the go.

Pro Tips

Data URIs

Use Base64 to create "Data URIs" for small images. This embeds the image directly into your HTML, saving an extra server request.

Storage

Keep in mind that Base64 increases file size by about 33%. Use it for small assets or transmission, not for bulk storage.

Reliability

Always use UTF-8 for text encoding unless your project specifically requires legacy ASCII or ISO support.

Ready to simplify your data workflow? Start using our Base64 Encoder/Decoder now and experience the power of efficient, browser-based data conversion!

Related Tools

Advance JSON Tree Viewer

A powerful tool to view, edit, and format JSON data with customizable options.

Open

Code to Image Converter

Convert your code snippets into beautiful, shareable images with customizable themes, backgrounds, and styling.

Open

CSS Formatter

Clean up and standardize your CSS code with advanced formatting options.

Open

Comments