DoraTools

Base64 Encoder & Decoder

Free online tool to convert text to Base64 or decode Base64 to plain text. Privacy-first, no data leaves your browser.

🔤 Try it now: Base64 encode / decode

✨ Your text never leaves your browser – 100% private, no tracking.

🔍 What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to embed images in HTML/CSS (data URIs), send attachments over email (MIME), and store complex data in JSON or XML. Our free Base64 encoder/decoder lets you convert between plain text and Base64 instantly.

Unlike many online tools, this one respects your privacy: all encoding/decoding happens locally in your browser. We never see, store, or log your data. It's also fully Unicode‑compatible, so you can use emojis, accents, and non‑Latin scripts.

🧩 Common uses for Base64

  • Data URIs – embed images directly in CSS/HTML
  • Email attachments (MIME) – encode binary files
  • JWT tokens – parts are Base64Url encoded
  • Storing binary in databases as text
  • Encoding credentials for HTTP Basic Auth

🛠️ Whether you need a Base64 decoder, text to Base64 converter, or just want to understand what a Base64 string means, this tool has you covered.

❓ Frequently asked questions about Base64

How do I decode a Base64 string?

Paste your Base64 string into the input box and click "Decode from Base64". The decoded text will appear instantly.

Can I encode emojis?

Yes! This tool fully supports Unicode, including emojis, Chinese, Arabic, and accented characters.

Is it really private?

Absolutely. The code runs entirely in your browser – no data is sent to any server. We don't track or log anything.

What if my Base64 is invalid?

The tool will show a friendly error message. Make sure you've copied the entire string, including any padding (=).

Free online Base64 encoder and decoder – no signup, no ads, no data collection. Perfect for developers, designers, and anyone who needs to quickly convert text to Base64 or Base64 to text. Try it now with the example: aGVsbG8= (paste and decode).