Free & Instant
Base64 Encoder
Encode any text into Base64 format instantly — useful for data transmission and embedding.
Base64 Encoder
Enter text below to encode it into Base64.
Unable to encode this input.
What Is Base64 Encoding?
Base64 is an encoding scheme that converts binary data into ASCII text format, commonly used for embedding images in HTML/CSS, encoding data in URLs, and transmitting data in email attachments and APIs.
Frequently Asked Questions
Is Base64 encoding secure/encryption?+
No, Base64 is not encryption — it's simply an encoding format. Anyone can easily decode Base64 text, so it should never be used to protect sensitive data.
Why does encoded text look longer?+
Base64 encoding increases data size by about 33% because it represents binary data using a limited set of 64 printable characters.