base64s

Free Base64 encoder & decoder, runs in your browser

by Burnice Halvorson

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Nov 1, 2026 Developer Tools

base64 browser decoder encoder utf-8

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Encode text or decode Base64 as you type. Everything runs in your browser—nothing is uploaded or saved. Free, no sign-up. Supports standard and URL-safe alphabets, UTF-8 including Chinese and emoji. No accounts, no limits.

Comments (3)

Evie Johns 2 days ago

super handy tool for quick encoding and decoding, really like that nothing gets saved or uploaded.

Baylee Kuhn 2 days ago

free and runs in-browser is cool, but how does it handle large files or complex encodings?

Royce Wilkinson 1 day ago

simple and effective, but the font could use a little more contrast for easier reading.

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