Base64 Encoder/Decoder
Encode and decode Base64 strings
Base64 Operation Mode Selection
Encoding Options
Uses '-' and '_' instead of '+' and '/' for URL compatibility
Breaks output into lines for email/MIME compatibility
File Upload Area
Drag & drop a text file here, or click to select
Supports: .txt, .json, .csv, .html, .xml (max 50MB)
Base64 Encoder/Decoder Interface
Base64 Output
Key Features
Discover the powerful capabilities of our base64 encoder/decoder.
Bidirectional Conversion
Encode text to Base64 or decode Base64 back to original text with instant results and error handling.
Multiple Format Support
Support for standard Base64, URL-safe Base64, and MIME Base64 with line wrapping options.
Real-time Processing
Instant encoding and decoding as you type with live validation and error detection.
Privacy Focused
All processing happens locally in your browser - no data is sent to servers for maximum privacy.
How to Use the Base64 Encoder/Decoder
Quick Guide
- Choose Operation: Select whether you want to encode text to Base64 or decode Base64 to text.
- Enter Your Data: Paste or type your text (for encoding) or Base64 string (for decoding) in the input area.
- Select Format: Choose between standard Base64, URL-safe Base64, or MIME Base64 with line wrapping.
- Get Results: View the converted result instantly with options to copy, download, or clear the output.
Use Cases
- • Embedding images in HTML/CSS as data URLs
- • Transmitting binary data over text-based protocols
- • Storing binary data in JSON or XML files
- • Email attachment encoding (MIME)
- • Web API data transmission and storage
- • Configuration files and environment variables
- • Database storage of binary content
- • Cross-platform data exchange and compatibility
Supported Formats
Encoding Types
- • Standard Base64
- • URL-safe Base64
- • MIME Base64
Input Data
- • Plain Text
- • UTF-8 Text
- • ASCII Text
- • Unicode Text
Output Options
- • Raw Output
- • Line Wrapped
- • URL Safe
- • MIME Format
Complete Your Workflow
Complete Your Workflow
Tools that work great together with Base64 Encoder/Decoder
Explore More Tools
Discover our complete collection of 500+ web development and productivity tools
Browse All Tools