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URL Inspector

Paste any URL and see it broken into protocol, host, port, path, query parameters, and fragment. Add, edit, or remove query parameters and watch the rebuilt URL update live with correct percent-encoding. Copy the result with one click — everything runs in your browser, nothing is sent anywhere.

url query-string encoding parser developer-tools

Published May 25, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Paste a URL and the inspector decomposes it into its parts — protocol, host, port, path, each query parameter (key and decoded value), and fragment — using the browser’s native URL API. Edit, add, or remove query parameters and the rebuilt URL updates instantly with correct percent-encoding applied via URLSearchParams.

Features

  • Full decomposition: protocol, host, port, path, query parameters, and fragment as distinct, readable fields
  • Decoded values: query parameter values are shown decoded — edit them as plain text
  • Live rebuild: add, edit, or remove parameters and the result URL updates immediately
  • Correct encoding: spaces, &, unicode, and reserved characters are encoded for you
  • Repeated keys: duplicate query keys are preserved as separate rows
  • Copy result: grab the rebuilt URL with one click
  • Private: built entirely on platform APIs — your URL never leaves your browser

Use Cases

  • Inspecting tracking parameters on a marketing link before sharing it
  • Building or tweaking an API request URL by hand
  • Confirming how special characters in a query value will be encoded
  • Stripping or reordering query parameters

Notes

  • Malformed input (missing a scheme, or not a URL) shows a clear message instead of crashing.
  • Parameters with an empty key are dropped from the rebuilt URL.