ConvertersRuns locally · No upload

Base64 Decoder

Decode Base64 strings to readable text or encode plain text — standard or URL-safe — with live output in a unified Base64 workbench.

Private by design

Everything runs in your browser. Your input is never uploaded, stored, or logged on our servers.

Works offline after load

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Frequently asked questions

Can I decode URL-safe Base64?+

Yes. Switch to the Decode tab and select URL-safe mode. Padding is added automatically if missing.

Is this tool free?+

Yes. Every Utiliio utility is free with no sign-up, usage limits, or paywalls.

Do you store my data?+

No. Processing happens entirely in your browser. Your input never leaves your device.

Can I use this tool offline?+

Yes. Once the page loads, most tools continue working without an internet connection.