Base64 Encoder & Decoder
0 chars
0 chars
Drag & drop a file here, or click to browse
The file will be converted to a Base64 string
About This Base64 Tool
This free Base64 encoder and decoder converts text and files to and from Base64 encoding directly in your browser. No data is sent to any server -- everything runs locally for maximum privacy and speed.
Features
- Encode -- Convert plain text to Base64 encoded string
- Decode -- Convert Base64 string back to readable text
- URL-safe mode -- Use URL-safe Base64 alphabet (replaces
+/with-_and removes padding) - File to Base64 -- Drag and drop any file to get its Base64 representation
- Auto-detect -- Automatically suggests encode or decode based on input content
- Data URI -- Copy file as a complete data URI for embedding in HTML or CSS
- Privacy -- 100% client-side, your data never leaves your browser
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It is commonly used to embed images in HTML/CSS, encode email attachments (MIME), transmit binary data in JSON or XML, and store complex data in URLs or cookies.
Like this tool? Check out our premium developer templates — including the CLAUDE.md Mega Collection ($12) and AI Solopreneur Toolkit ($9).