Base64 Converter
Convert text and files between Base64 and normal formats. Supports drag & drop, various file types and batch processing.
Versatile Base64 Conversion
Text & Files: Convert both text and files (images, documents) between Base64 and normal formats.
User-friendly: Simple operation with instant conversion, drag & drop support and predefined examples.
Secure & Private: All conversions happen locally in your browser - no data is transmitted.
Base64 Converter
Encode
Converts normal text or files to Base64
Decode
Converts Base64 back to normal text
Input
Load examples:
Base64 Output
Security Information
Safe File Types
Images (JPG, PNG, GIF), documents (PDF, DOC), text files, archives (ZIP, RAR)
Local Processing
All files are processed only in your browser. No uploads to servers.
Blocked File Types
Executable files (.exe, .bat, .js, .scr) are automatically blocked
Size Limit
Maximum file size: 10MB. Warning for files over 5MB.
Tip for developers:
Use Base64 for data URIs in CSS/HTML, API payloads or for embedding small files. Note that Base64 increases file size by ~33%.
What is Base64?
Encoding Standard
Base64 is an encoding method that converts binary data into ASCII text. Uses 64 characters: A-Z, a-z, 0-9, + and /.
Universal Compatibility
Works in all systems and protocols that only support ASCII text, such as email or URLs.
Efficient Transfer
Enables secure transfer of binary data over text-based protocols without data loss.
Common Applications:
- • Email attachments: MIME-encoded files
- • Data URIs: Images directly in HTML/CSS
- • APIs: JSON with binary data
- • Databases: Storage of binary data
- • Configuration: Embedded certificates/keys