Base64 Encoder/Decoder: Encode and Decode Base64 Online

Encode text to Base64 or decode Base64 to text. Essential for developers working with APIs, data URIs, and encoded content.

Base64 encoding converts binary data to ASCII text, making it safe for transmission in text-based protocols like email and URLs.

Common Uses

Data URIs in HTML/CSS, email attachments (MIME), API authentication tokens, and embedding binary data in JSON.

Paste text to encode or Base64 string to decode. Instant conversion with copy-to-clipboard functionality.

Use our free Base64 Encoder/Decoder tool — no signup required, works on any device.

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