Free · Online · No install · Private

URL Encoder & Decoder

Escape URL-unsafe characters in any string or query, or decode percent-encoded URLs back into readable text — instantly, in your browser.

Try the tool now

Turn plain text into a safe, percent-encoded URL string.

Encode characters that are unsafe in a URL, such as spaces and &, so they survive transport.

Encoded result

🔒 Everything happens locally in your browser. Your strings never leave your device.

How to use this URL encoder & decoder

  1. Paste your string

    Enter the plain text or the percent-encoded URL you want to convert, and choose Encode or Decode.

  2. Convert instantly

    Click Encode URL or Decode URL. Your result appears immediately in the output box.

  3. Copy or download

    Copy the safe result or download it as a file. Nothing is stored or sent anywhere.

Why use a browser-based URL encoder and decoder?

  • Private & secure. Strings are encoded and decoded locally in your browser and never uploaded.
  • Handles any character. Spaces, ampersands, question marks, slashes, and non-ASCII text are all handled.
  • No install, no sign-up. A free online URL encoder that runs instantly with no account.
  • Offline ready. Works without an internet connection once loaded.
  • Fast and lightweight. Instant results with a clean, developer-friendly interface.
  • Free forever. No paywalls, no limits, no data caps.

Frequently asked questions

What is URL encoding?

URL encoding (also called percent-encoding) replaces unsafe characters in a URL with a % symbol followed by two hexadecimal digits, so the URL can be sent safely over the internet.

Is this URL decoder private?

Yes. Both encoding and decoding run entirely in your browser using JavaScript. Your data never leaves your device.

What characters are URL-unsafe?

Characters like spaces, &, ?, #, /, and % itself are unsafe or reserved in URLs. This tool escapes them for you automatically.

Can I use this tool offline?

Yes. Once the page is loaded, it works without an internet connection because all processing happens locally.

Legal: All processing is done locally in your browser. Read our Privacy Policy, Terms of Service, and Cookie Policy.