A small tool for a familiar interruption.

You are debugging an API. A value is Base64-encoded. You need to read it, edit the source text, or encode a replacement without losing accents or juggling several pages.

Base64 Desk focuses on that workflow: UTF-8 text, standard Base64, Base64url and an optional JSON view. It does not validate API schemas, verify signatures or process binary files.

Base64 is an encoding, not encryption. Anyone with the encoded string can recover its contents. Never use it to protect secrets.

Send feedback with a synthetic example rather than a real token or customer payload.