Base64 Encode/Decode
Encode or decode Base64 (text + file).
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Private
Files never leave your browser.
Fast
Native client-side processing.
Free forever
No signup, no watermarks.
About Base64 Encode/Decode
Base64-encode text or files, and decode Base64 back to text or a downloadable file. Runs entirely in your browser.
Base64 Encode/Decode runs entirely in your browser using Utilities technology. Your files are processed locally and never uploaded to a server — there is no cloud, no storage, and no account required. Nothing about your file is sent anywhere.