Encoders

Base64 · URL · HTML — instant & local

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Encode / Decode

Type or paste on the left, get results on the right. Works offline. Nothing is uploaded.

Input

Chars: 0

Output

Chars: 0

Operation

Encode Decode

Wrap at 76 chars URL-safe (−_ instead of +/)

Build Data URL

—

Component (encodeURIComponent) Full URL (encodeURI)

Spaces as + (form-URL-encoded) Keep unreserved safe

Escape minimal (< > & " ') Also escape non-ASCII (&#xHH;)

Explain

Choose a codec and press Run, or use Ctrl/Cmd+Enter. Options update live.

Share settings

Encode file → Base64 / Data URL

Drop file here or click to choose

Wrap at 76 chars URL-safe Build Data URL

Result

Size: —

Decode Base64 / Data URL → File

Base64 or Data URL

Filename

MIME (optional)

Bytes: 0

Tips & privacy

Everything runs locally in your browser. No uploads, no tracking.
Base64: text uses UTF-8; URL-safe replaces +// with -/_ and strips padding for compactness when possible.
URL: choose component (query value, path segment, etc.) vs full URL. “Spaces as +” matches form encoding.
HTML: minimal escapes (&, <, >, ", '). “All” also escapes non-ASCII as hex entities.

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