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Encode text to Base64 instantly with proper UTF-8 support.
🔐 Base64 encodes binary data as text. Common in emails, data URIs, and APIs. Note: it is NOT encryption.
Base64 encodes binary data as ASCII text so it can travel through systems designed for text — email, JSON, HTML, URLs. This tool encodes any text to Base64, with proper UTF-8 support for non-English characters and emoji.
Base64 is an encoding, not encryption. Anyone can decode it instantly — it provides zero security. Never use Base64 to protect sensitive data. Use it only for transport compatibility, then apply real encryption (AES, etc.) separately.
Base64 output is about 33% larger than the input. Every 3 bytes becomes 4 characters. This is the trade-off for text-safe transport.
The Base64 Encoder handles base64 encoderdirectly in your browser. Paste or type your input, and the tool processes it instantly — no upload, no signup, no waiting. It's built for the moments when you need a quick transformation and don't want to leave your workflow.
Because the tool runs client-side, it's fast and private. Your text never touches a server, which makes it safe for sensitive content. The interface is keyboard-friendly and works on any device with a modern browser.
Common uses: people reach for this tool when they need to use a base64 encode utf 8, text to base64 converter, encode string to base64, or base64 with unicode support.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
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