Base64 Decoder
🔓 Decode Base64
What Is Base64 Decoding?
Base64 decoding is the process of converting a Base64-encoded string back into its original plain text or binary data. Base64 is used to send files and images safely over text-based systems like email, JSON, and HTML.
Why Use Our Base64 Decoder?
Our tool runs entirely in your browser. Your data is never sent to a server — it is decoded locally using JavaScript. It also supports Unicode (emoji, accents) with proper UTF-8 handling.
Key Features
- 🔓 Decode — Base64 → plain text
- 🔒 Encode — plain text → Base64
- 💡 Example — load a demo value
- 🧹 Clean Input — removes whitespace and newlines
- 📊 Size Info — input, output, and ratio
- 🌐 Unicode safe — supports emoji and accents
- 🔐 100% private — nothing leaves your browser
Common Base64 Examples
Perfect For
❓ Frequently Asked Questions
Is this Base64 decoder free?
Yes, our Base64 decoder is 100% free with no signup and no limits.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption. It is easily reversed and provides no security. Never use it to hide passwords.
Does it support Unicode and emoji?
Yes. Our tool uses UTF-8 internally, so emoji, accents, and any language work correctly.
Why does Base64 end with “=” signs?
The “=” is padding. Base64 works in groups of 4 characters, and padding fills the missing spots.
Does it work on mobile?
Yes, fully responsive on phones, tablets, and desktops.
