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Base64 Encoder / Decoder

Encode or decode Base64 for text or files. All processing happens locally in your browser.

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About this tool

Use this free Base64 utility to encode or decode text and files directly in your browser. Options include URL-safe output, stripping padding =, and line-wrapping at 76 characters. When decoding, the tool can show a UTF-8 text preview if the bytes represent readable text. Nothing is uploaded; everything runs locally for privacy and speed.