Is Base64 encryption?

No. It is an encoding, fully reversible by anyone. Never use it to protect secrets.

What is URL safe Base64?

A variant that swaps + and / for - and _ so the value can sit in a query string.

InfoSec Tools

Base64 encoder and decoder

Base64 represents binary data with 64 printable ASCII characters. It is used in data URIs, HTTP basic auth, JWT segments and email attachments. This tool runs entirely on the client with TextEncoder, so payloads never leave the tab.

Frequently asked questions

Is Base64 encryption?: No. It is an encoding, fully reversible by anyone. Never use it to protect secrets.
What is URL safe Base64?: A variant that swaps + and / for - and _ so the value can sit in a query string.