Encoding and decoding, without the round trip to a server

Encoding bugs are rarely conceptual, they are mechanical: a URL-safe Base64 string pasted into a standard decoder, a UTF-8 sequence mangled into mojibake, a percent-encoded parameter that was encoded twice. These tools show you the bytes at each step.

They are also UTF-8 aware, which the average one-line `atob()` demo is not.

2 Encoding tools

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text, with URL-safe support, all local.

Local

Binary ↔ Text

Convert text to 8-bit binary and back, UTF-8 aware, entirely local.

Local