UTF-8 READY • CLIENT-SIDE PROCESSING

Base64 Encoder and Decoder Online

Quickly encode and decode Base64 strings with full UTF-8 support (accents, non-Latin scripts and emoji), and convert files and images to Data URIs for embedding in HTML and CSS.

📄 Plain text (UTF-8)
0 bytes
🔒 Base64 string
0 bytes

How does Base64 work and why use it?

🌐 For web development

Embedding small icons and SVGs directly in HTML/CSS via Data URIs removes extra HTTP requests, which can speed up page load and First Contentful Paint.

🛡️ Safe data transfer

Base64 turns binary bytes into 64 safe ASCII characters, so files aren’t corrupted when sent over email (MIME) or in HTTP API headers. Note: Base64 is an encoding, not encryption.

🛠️

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