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Base64 Encoder Decoder Online Free — Encode & Decode in Your Browser (2026)

Encode text or files to Base64 format, or decode Base64 back to readable text. Supports file drag-and-drop for creating data URLs. All processing happens in your browser — nothing is uploaded to any server.

Features

• Encode plain text to Base64:
• Decode Base64 back to readable text:
• File drag-and-drop encoding (images, PDFs, etc.):
• Copy result with one click:
• Download encoded/decoded output:

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Common Uses

• Embedding images in HTML/CSS as data URLs
• Transferring binary data via text protocols
• Storing complex data in text fields
• Encoding credentials for basic auth
• Debugging API payloads

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