Encoded as %20 when encoding text for URL components.

Can I switch encode and decode?

Yes. Toggle modes at the top; switching clears the input so you start fresh.

What if decoding fails?

Invalid percent-sequences show an error instead of partial output.

Encode or decode URL components with encodeURIComponent and decodeURIComponent.

Runs locally — nothing is uploaded

1
Choose mode
Encode plain text to percent-encoding or decode an encoded string.
2
Enter value
Type or paste the text to convert.
3
Copy result
Copy the encoded or decoded output.

Standard percent-encoding for URL components — the same rules browsers use for encodeURIComponent.

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