Base64 Encoder / Decoder
Instantly encode text to Base64 or decode Base64 back to text. 100% secure client-side processing.
What is Base64 Encoding?
Base64 is an encoding scheme used to represent binary data in an ASCII string format. It translates unprintable characters into a universally supported text format, making it ideal for transferring data over mediums that primarily handle text, such as email (MIME) or embedding images directly within HTML and CSS files. The "64" in its name comes from the 64 characters used in its alphabet: A-Z, a-z, 0-9, +, and /.
Is Base64 Encryption?
It is a common misconception that Base64 is a form of encryption. Base64 is not encryption. It does not hide data or secure it with a key or password; it merely changes the format of the data. Anyone who recognizes a Base64 string can easily decode it back to its original form. For securing sensitive information like passwords, you should use cryptographic hashing algorithms like Bcrypt or SHA-256 instead.
Common Use Cases
Developers and system administrators frequently use Base64 to encode small images into data URIs to reduce HTTP requests, to encode basic authentication credentials in HTTP headers, or to safely serialize complex data structures for transmission across systems that might otherwise corrupt binary data.