You get a link like this in your analytics dashboard:
https://example.com/blog?utm_source=newsletter&utm_medium=email&utm_campaign=may-launch&ref=homepage&page=2
Figuring out what each parameter does requires either reading the URL character by character or copying each key-value pair manually. Neither is fun when you're debugging a campaign or checking an API response.
The URL query string parser online free at Ultimate Tools does it in one paste. Switch to the Parse URL tab, paste your URL, and every component breaks out into a clean table instantly.
What the Parser Shows You
Paste any full URL and the tool splits it into:
| Component | Example |
|---|---|
| Protocol | https |
| Domain | example.com |
| Path | /blog |
| Fragment | #section |
| Query parameters | Each key + value as separate rows |
Every query parameter gets its own row. For the URL above, you'd see:
| Key | Value |
|---|---|
| utm_source | newsletter |
| utm_medium | |
| utm_campaign | may-launch |
| ref | homepage |
| page | 2 |
Click the copy icon next to any value to copy it to clipboard without touching the surrounding text.
When Is This Actually Useful?
Debugging UTM parameters. Marketing links get long and messy. Paste a campaign URL into the parser to instantly confirm which utm_source, utm_medium, and utm_campaign values are actually being tracked — before the campaign goes live.
Checking API responses. REST APIs often return URLs with embedded parameters in the response body. Parsing them manually is error-prone. Paste the URL and see every parameter clearly.
Decoding redirect chains. Affiliate links and tracking URLs nest parameters inside other parameters (often percent-encoded). Paste the outer URL, copy a specific encoded value, then paste that into the Decode tab to unwrap it.
Extracting OAuth callback parameters. OAuth flows return code, state, and error parameters in a redirect URL. If something fails, paste the full callback URL to see exactly what was returned.
Verifying canonical and pagination links. Copy a canonical URL from your CMS and parse it to confirm the page or lang parameter values are what your SEO team expects.
Encode and Decode Are Still There
The Parse URL tab is an addition — it doesn't replace the Encode and Decode tabs.
Encoder tab: Paste raw text with special characters (&, =, ?, spaces) → get the percent-encoded version safe to embed in a URL.
Decoder tab: Paste a percent-encoded string → get the human-readable version back (%20 → space, %26 → &, etc.).
Parse URL tab: Paste a full URL → get every component in a table.
All three work client-side in your browser. Nothing is sent to any server.
How to Use the URL Parser
- Open the URL Encoder / Decoder & Query String Parser
- Click the Parse URL tab (third tab, after Encoder and Decoder)
- Paste any full URL into the input box
- The table populates instantly — protocol, domain, path, fragment, and all query parameters as individual key-value rows
- Click the copy icon next to any value to copy it
If the URL is malformed or not parseable, an error message appears beneath the input.
Related Tools
- minify javascript css html online free no ads — compress or beautify the JavaScript and CSS files whose URLs you're debugging — same browser-only, no-upload approach
- format and validate JSON online free — when your URL's query parameter value is a JSON-encoded string, paste the decoded value here to format and validate it
- generate bulk qr codes from csv free zip download — batch-generate QR codes for the URLs you've been parsing and debugging — CSV input, ZIP output
Top comments (0)