Base64 Encoder & Decoder
Convert plain text to Base64 or decode Base64 strings back to readable text, all processed locally without uploading anything to a server.
How to Use the Base64 Tool
1. Choose a Mode
Select whether you want to Encode plain text or Decode an existing Base64 string.
2. Enter Your Text
Type or paste your content into the input box on the left.
3. Convert & Copy
Click Convert and copy the result instantly with one click.
Why Use Our Base64 Tool?
🔒 100% Client-Side
Your text is never sent to a server, ensuring absolute privacy.
⚡ Instant Results
Encoding and decoding happen immediately as you type or click Convert.
🌐 Unicode Safe
Handles emojis and non-Latin characters correctly, not just plain ASCII.
📋 One-Click Copy
Copy your encoded or decoded result to the clipboard instantly.
Frequently Asked Questions
Base64 converts binary or text data into a set of 64 safe ASCII characters, commonly used to embed data in URLs, emails, and JSON payloads.
No. Base64 is an encoding scheme, not encryption. Anyone can decode it back to the original text, so it should never be used to protect sensitive data.
Decoding fails if the input isn't valid Base64 — for example if it contains characters outside the standard Base64 alphabet or has incorrect padding.