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Base64 Encode Online

Encode text to Base64 format instantly. Free online Base64 encoder for embedding data in URLs, emails, and APIs.

🔒 100% Client-side⚡ Instant🆓 Free forever

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0 tokens
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About Base64 Encode Online
Encode text to Base64 format instantly. Free online Base64 encoder for embedding data in URLs, emails, and APIs. This tool is part of the ConvertTOON developer tools suite, providing 40+ free online utilities for developers.
All processing happens entirely in your browser — your data never leaves your device. No sign-up required, no data collection, completely free and private.
💡 Looking for more tools? Visit ConvertTOON.com for JSON to TOON conversion, batch processing, and 40+ developer tools.
How to Convert Text to Base64
  1. Paste your Text data in the input panel
  2. The Base64 output is generated automatically
  3. Click “Copy” to copy the result to clipboard
  4. Or click “Convert” to manually trigger conversion
Base64 encoding converts binary data to ASCII text, enabling safe transmission through text-only channels like email, URLs, and JSON. Common uses include embedding images in HTML, sending binary data in API payloads, and encoding authentication credentials.
Frequently Asked Questions
Is my data secure?
Yes. All conversion happens 100% in your browser using JavaScript. No data is ever sent to a server.
Is there a file size limit?
The tool handles files up to several MB comfortably. For very large files, consider using our batch converter or API.
Can I use this programmatically?
Yes! We offer a free REST API at /api/convert/base64-encode and an NPM package for Node.js integration.
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