Base64 Encoding
Convert text or files to Base64 format
🔒 Base64 Encoder Decoder Tool - Professional Base64 Converter
Free online Base64 encoding and decoding tool, supports text, image, file encoding conversion. Provides Base64 encoding, decoding, validation functions with file upload and instant preview.
Completely Free
Multi-format Support
File Upload
Instant Preview
✨ Base64 Tool Features
Base64 Decoding
Convert Base64 format back to original content
Format Validation
Check if content is valid Base64 format
File Upload
Support image, document file upload conversion
Image Preview
Instant preview of Base64 image content
Statistics
Display size and ratio before/after encoding
Copy & Download
One-click copy results or download files
Unicode Support
Full support for Chinese and multilingual characters
🔧 Operation Mode
✨ Completely Free
Professional Base64 processing, no usage restrictions
📊 Processing Results
🔒
Please enter content and select operation mode
Select operation type, then click process button
⏳
Processing...
Please wait...
❌
Processing Failed
Detailed error information:
📊 Statistics
Input Length：
-
Output Length：
-
Size Change：
-
Lines：
-
Processing Result
🖼️ Image Preview
📖 Usage Instructions
📝
Input Content
Enter text or upload file, select operation type to execute
⚙️
Select Operation
選擇編碼、解碼或驗證操作，並設定格式類型
📊
查看結果
查看處理結果、統計資訊，並可複製或下載