About Base64 Encoder & Decoder
Convert UTF-8 text or binary files into Base64 format and decode Base64 strings back to readable text. Supports URL-safe Base64 and live file downloads.
Key Capabilities & Features
- Encode & decode UTF-8 text with emojis
- URL-safe base64 encoding mode
- Upload local file to encode to base64 data URI
- Instant 1-click copy
How to Use Base64 Encoder & Decoder
Select Mode
Choose Encode or Decode.
Enter Content
Type or paste text, or select a file.
Copy Output
Click Copy to get the processed Base64 string.
Privacy & In-Browser Execution Guarantee
Pure in-memory string conversion using Web API TextEncoder/TextDecoder.
Frequently Asked Questions
Is Base64 a form of encryption?
No. Base64 is an encoding format designed to transmit binary data over text-only protocols. It provides no confidentiality and can be decoded by anyone.
What is the difference between Base64 and Base64URL?
Base64URL substitutes '+' with '-' and '/' with '_', and omits padding '=' characters, making it safe for URLs, filenames, and JWT headers.
Does this tool support emojis and non-English UTF-8 characters?
Yes. Our encoder uses modern TextEncoder and TextDecoder APIs to safely handle Unicode, accents, and emojis without UTF-8 corruption.