01. Base64 Encode & Decode
Encode/decode with charset options, live mode, line mode, and file tools.
Base64 input
Output
How Base64 works (quick)
Base64 maps every 3 bytes of binary data to 4 ASCII characters using A–Z, a–z, 0–9, +, and / (or -/_ for URL-safe). Padding uses =. Everything here runs in your browser — nothing is uploaded.
“Man” → TWFu · Example: TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCAuLi4=
About this tool
Decode and encode Base64 with character-set selection, live mode, per-line processing, URL-safe variant, and file encode/decode downloads — inspired by base64decode.org, fully local.
Dedicated URL for Base64 Encode & Decode on utils.breejeshrathod.com — processing stays in your browser.