Base64 Encoder
Encode plain text to Base64 format
Input Length
0 chars
Output Length
0 chars
Size Increase
0%
Plain Text Input
Enter or paste text to encode
Base64 Output
Encoded result
About Base64 Encoding
What is Base64 Encoding?
Base64 encoding converts text or binary data into ASCII characters. It's commonly used for embedding images in HTML/CSS, encoding data in URLs, and transmitting data over text-based protocols.
Features
- Standard and URL-safe encoding
- Configurable line breaks (MIME-compliant)
- Auto-encode option for instant results
- File upload support
- Download encoded output
- Size statistics and compression ratio
Encode text, files, and binary data to Base64 format. This developer-focused encoder supports standard and URL-safe Base64, with options for line wrapping and padding. Build data URIs, encode API credentials, and create Base64 payloads for any protocol.
Key Features
- ✓Standard and URL-safe Base64 encoding
- ✓UTF-8 text input support
- ✓Line wrapping options (76/64 chars)
- ✓Padding control (with/without =)
- ✓Instant encoding
How to Base64 Encoder for Developers
- 1
Enter data
Type or paste text to encode.
- 2
Base64 is generated
Encoded output appears instantly.
- 3
Copy result
Click copy for the Base64 string.
Common Use Cases
- •Encoding HTTP Basic Auth credentials
- •Creating data URIs for inline resources
- •Encoding binary data for JSON payloads
- •Embedding small files in configuration
Frequently Asked Questions
What is URL-safe Base64?▼
URL-safe Base64 replaces + with - and / with _ to avoid URL encoding issues. Used in JWTs and URL parameters.