URL Encode / Decode

Percent-encode or decode URL components locally in LocalKit. Prepare query strings and path segments without sending text to a remote encoder or creating an account.

Interactive controls load with JavaScript. Processing stays in your browser—nothing is uploaded.

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How to use

  1. Open the tool — Open this LocalKit page and wait for the interactive controls to load.
  2. Provide input — Paste or type your content (or set options). Data stays in the browser.
  3. Run the action — Use the primary button or live controls to generate the result.
  4. Copy the result — Copy the output into your editor, terminal, or documents.

Limits

Requires JavaScript. Extremely large inputs may slow the browser tab. Results depend on your browser APIs; there is no server-side processing quota because nothing is uploaded.

When to use

When you want a quick, free utility without creating an account or sending content to an online converter.

When not to use

When you need server-side integration, batch automation at scale, or certified compliance tooling.

Privacy note

Tool inputs are processed in your browser only. Theme, language and favorites may use localStorage; hosting may keep standard access logs (IP, UA, URL) without tool payloads.

FAQ（5）

Encode full URL or just a query value?

Encode components (query values, path segments). Do not encode the whole URL including https:// or & separators.

What is percent-encoding?

Unsafe characters become %HH (e.g. space → %20) so URLs stay valid.

Difference from encodeURI vs encodeURIComponent?

This tool targets component-style encoding (like encodeURIComponent)—safer for query parameters.

Will my text leave the browser?

No. Encoding is local.

Why does + appear in some query strings?

Some forms use + for spaces. Prefer %20 for modern APIs; decode accordingly.