Base64 Encode / Decode
Encode and decode Base64 strings instantly
About Base64 Encode / Decode
Encode text to Base64 or decode Base64 strings back to plain text. Supports UTF-8 encoding for international characters. All processing happens in your browser — no data is sent to any server.
Privacy First
All processing happens entirely in your browser. No data is sent to any server, and nothing is stored. Your input stays on your device.
FAQ
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that converts binary data into a set of 64 ASCII characters. It's commonly used to embed binary data in text-based formats like JSON, HTML, or email.
Is Base64 encoding the same as encryption?
No. Base64 is an encoding scheme, not encryption. Anyone can decode Base64 data. It should never be used to protect sensitive information.
Why does Base64 increase data size?
Base64 encoding increases data size by approximately 33% because it represents 3 bytes of binary data using 4 ASCII characters.