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Base64 Encoder/Decoder

Convert text and files to and from Base64 format. Supports text, images, and binary files.

Input

Or drag and drop a file here.

Automatically detects whether input is Base64 and suggests encode/decode mode

Upload or drag-and-drop images, PDFs, and any file type for Base64 conversion

Preview images, analyze data format, and view file information

Copy, download, swap input/output, and clear with single clicks

Output as text, Data URLs, or downloadable files based on your needs

Real-time validation with helpful error messages for invalid inputs

100% Client-Side

All processing happens in your browser. Your data never leaves your device. No server transmission, no storage, complete privacy.

5 tools