Text / Base64

Encode or decode Base64

UTF-8 text to Base64 and back. For images, use Image to Base64.

Last checked: September 2026. Confirm millimetres, pixels, and KB on the official form. Not a government website.

InputOutput

Decode

Drop

Drop the file. It stays in this browser tab.

Set the cap or preset for this job.

Download from this device. Nothing is uploaded.

FAQ

Files?Open

This page is text. Open Image to Base64 for a data URL from a photo.

Is my file uploaded?Open

No. Work runs in this browser tab. Close it and the file is gone.

Related systems

01 / convert

Search TXT, JSON, HTML, or MD in the format picker. The file never leaves this tab.

02 / text

encodeURIComponent and decodeURIComponent in this tab.

03 / text

Pretty-print with 2-space indent. Invalid JSON shows the parser error.