Developer

URL Encoder & Decoder

Encode and decode URL components instantly in your browser. Processing stays on your device.

How to Use

  1. Paste the string or URL component.
  2. Encode or Decode.
  3. Copy the result.

Key Features & Privacy Advantage

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • encodeURIComponent / decodeURIComponent.
  • Clear errors on invalid sequences.
  • Copy and clear.

Technical Breakdown

Percent-encoding makes reserved characters safe in query strings. encodeURIComponent is stricter than encodeURI and is the usual choice for form fields and query values.

Frequently Asked Questions

Full URL vs component?

Prefer encoding individual query values, not the entire URL including scheme.

Is input uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

Invalid escape sequences?

Decode shows an error instead of throwing silently.

Plus signs?

application/x-www-form-urlencoded may use + for spaces; this tool focuses on percent-encoding.