Base64 Encoder & Decoder - Convert Text and Files

Convert text to Base64 and Base64 to text

Input

Output

URL-safe Base64 (replace + with - and / with _)

Other Developer:

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Base64 Encoder and Decoder Guide

Text and File Encoding

Convert text and files to Base64 format for secure data transmission and storage. Supports UTF-8 text encoding and various file types including images, documents, and binary files.

Secure Data Transfer

Base64 encoding ensures safe transmission of binary data through text-based protocols. Ideal for email attachments, API communications, and data embedding in HTML/CSS/JavaScript.

Instant Conversion

Real-time encoding and decoding with support for large files and text strings. Copy results directly to clipboard for easy integration into your projects.

Common Use Cases

Web Development: Embed images and fonts directly in CSS/HTML
API Integration: Format binary data for JSON payloads
Email Systems: Encode attachments for MIME format
Data Storage: Store binary data in text-based databases

Technical Information

Base64 uses 64 characters (A-Z, a-z, 0-9, +, /)
Padding with '=' ensures proper decoding
Output is ~33% larger than input
Supports UTF-8 character encoding