Base64 Encoder/Decoder
Encode and decode Base64 text and files with preview support.
Input
Drag & drop files here
or click to browse
Max file size: 5 MB
Output
Dual Mode Tool
Encode and decode Base64 text and files with automatic format detection.
Real-Time Preview
Live image preview for encoded/decoded images with instant visual feedback.
RFC 2045 Line Wrapping
Optional MIME-compliant 76-character line wrapping for email compatibility.
Privacy First
100% client-side processing. Your data never leaves your browser.
How Base64 Encoding Works
1. Input Content
Choose between text input or file upload. Supports images (PNG, JPG, GIF, SVG, WebP) and text files up to 5MB with automatic format detection.
2. Process & Configure
Automatic format validation and encoding/decoding operations. Configure line wrapping and preview settings for optimal output formatting.
3. Get Results
Copy Base64 output to clipboard, download as text file, or swap input/output for decode operations with bidirectional processing support.
Benefits of Base64 Encoding
Email & Data Transmission
Encode binary files for safe transmission through email and text-based protocols. Base64 ensures data integrity across systems that only handle text.
Web Development
Create data URLs for inline images, encode API payloads, and handle file uploads in web applications without server-side processing.
Configuration Files
Store binary data in JSON, XML, or YAML configuration files. Essential for certificates, keys, and binary assets in DevOps workflows.
Data Exchange
Safely transmit binary data between different systems and platforms. Base64 encoding prevents data corruption during text-based transfers.
Who Uses Base64 Encoding?
Web Developers
Embed images in CSS, create data URLs for HTML, handle file uploads in JavaScript, and process API responses with binary data.
DevOps Engineers
Store certificates and keys in configuration files, handle binary data in CI/CD pipelines, and encode secrets for secure transmission.
API Developers
Encode binary payloads for JSON APIs, handle file attachments in REST services, and process multipart data in web services.