Base64 / URL Codec

Base64 and URL Encode / Decode

Strictly client-side. UTF-8 without the btoa Unicode bug. Distinguishes URL / component / form-urlencoded.

PrivacyData stays in the browser. URL carries mode/options only, not input.

encodeURI leaves ;,/?:@&=+$#. Component encode escapes for query/path. In form-urlencoded, `+` means space — not generic percent-decoding.

Input

File→Base64

Looks like plain text — pick an encode mode.

Output

SGVsbG8sINC80LjRgCDwn5GL

Bytes: 18

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