🔄
Free Base64 Encoder/Decoder Online
Encode text to Base64 and decode Base64 back to text client-side.
/* encoded result will appear here */
/* decoded result will appear here */
All processing is client-side.
Privacy: All processing is done client-side; nothing you type or generate is sent to any server.
Monetization: We show light, non-intrusive ads to keep these tools free for everyone.
How It Works
- Paste text or Base64 string
- Choose encode or decode
- See instant conversion
- Copy result
When to Use This Tool
- ✓Encoding data for APIs
- ✓Decoding Base64 strings
- ✓Email attachment encoding
- ✓Data transmission
Use Cases & Examples
- •API authentication headers
- •Embedding images in CSS
- •Email attachment encoding
- •Data serialization
Frequently Asked Questions
What is Base64?
An encoding scheme that converts binary data to ASCII text for safe transmission.
Is Base64 encryption?
No, Base64 is encoding (reversible). It's not secure encryption.
When should I use Base64?
For encoding data in URLs, APIs, emails, or embedding files in HTML/CSS.