Encode and decode Base64. Supports standard, URL-safe variants, and automatic detection of encoded data.
Output
Enter data and click Convert
What is Base64 Tool?
Encode and decode Base64 strings instantly. Supports standard and URL-safe Base64 encoding for JWTs, URLs, and data transfer.
FAQ
What is Base64?
Base64 is an encoding scheme that represents binary data as ASCII text. It's used in JWTs, email attachments, data URLs, and API authentication tokens.
What's the difference between standard and URL-safe Base64?
URL-safe Base64 replaces '+' with '-' and '/' with '_' to be safe in URLs and filenames. JWTs use URL-safe Base64.