When should I encode?

Encode strings used in URLs and query parameter values to avoid breaking characters.

What about double encoding?

Avoid encoding a string more than once; use decode to inspect inputs first.

No. Encoding/decoding happens locally in your browser.

URL Encoder / Decoder – Encode or Decode URLs

Input

Result

Encode or Decode URLs Safely

Percent‑encode text for URLs and query parameters, or decode encoded strings. Prevent broken links and parsing issues by encoding special characters correctly.

Common characters

Spaces → %20
Question mark (?) → %3F
Ampersand (&) → %26

FAQs

When should I encode?: Encode strings used in URLs and query parameter values to avoid breaking characters.
What about double encoding?: Avoid encoding a string more than once; use decode to inspect inputs first.
Is data uploaded?: No. Encoding/decoding happens locally in your browser.