Toolbox

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 to text instantly. Support for files, images, and URL-safe encoding.

Text Input
0 characters
Base64 Output
0 bytes
No output
Sample Data

Try encoding or decoding these sample data:

About Base64 Encoder & Decoder

Our Base64 Encoder & Decoder is a powerful, free online tool that converts text and files to Base64 encoding and vice versa. Perfect for developers, system administrators, and anyone working with data encoding for web applications, APIs, or data transmission.

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored or transmitted over media designed to deal with text, such as email systems, URLs, or JSON/XML documents.

Key Features

  • Bidirectional Conversion: Encode text to Base64 or decode Base64 to text
  • File Support: Encode files (images, documents, etc.) to Base64
  • URL-Safe Encoding: Option for URL and filename safe Base64
  • Image Preview: Preview decoded images directly in browser
  • Auto-Processing: Real-time encoding/decoding as you type
  • Line Break Control: Add line breaks for better readability

How to Use

  1. Choose mode: Select "Encode" or "Decode" at the top
  2. Enter data: Type text or upload a file in the input area
  3. Configure options: Enable URL-safe, line breaks, or auto-processing as needed
  4. Process: Click the encode/decode button or enable auto-processing
  5. Get results: Copy or download the converted data

Common Use Cases

  • • Email Attachments
  • • Data URLs for Images
  • • API Data Transmission
  • • Configuration Files
  • • Web Development
  • • Database Storage
  • • URL Parameters
  • • Binary Data Encoding

URL-Safe Base64

Standard Base64 uses + and / characters, which have special meanings in URLs. URL-safe Base64 replaces these with - and _ respectively, making it safe for use in URLs and filenames.

Why Use Our Base64 Tool?

  • ✓ 100% Free - No registration required
  • ✓ Client-Side Processing - Your data stays private
  • ✓ File Support - Handle any file type up to 10MB
  • ✓ Real-Time Processing - Instant results
  • ✓ Mobile Friendly - Works on all devices
  • ✓ No Size Limits - Process large text data

Base64 Character Set

Standard:
A-Z a-z 0-9 + /

URL-Safe:
A-Z a-z 0-9 - _

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