Protocol https:, host html-onlineviewer.com, path /tools, source equal to javascript, mode equal to learn and fragment #examples.
BROWSER UTILITIES · FREE JAVASCRIPT TOOL
URL Parser & Query String Tool
Inspect a URL protocol, origin, host, path, query parameters and fragment without visiting the destination.
Free to useNo sign-upRuns in your browser
JS
URL ParserLocal browser processing
Ready in your browser
Your processed result will appear here.
A WORKED TASK
Break a URL into understandable parts
Paste the example URL and inspect the protocol, origin, host, path, query parameters and fragment. source=javascript and mode=learn belong to the query string. The examples fragment follows # and is separate from those query values. This inspection does not visit the pasted destination.
The current interface inspects URL components; it is not a website fetcher, link-safety scanner or interactive query-string editor. Parsing successfully does not prove that a destination exists or is trustworthy.
What to check
- Include the scheme, such as https://, rather than pasting only a hostname.
- Repeated query keys can appear more than once in the output.
- Remove credentials, reset tokens or private query values before sharing a URL with anyone.
TESTED & REVIEWED
Know what this tool does—and where to double-check
- Reviewed by
- HTML Online Viewer project
- Last reviewed
- Processing
- Ordinary processing happens in this browser tab; the tool does not intentionally upload your source.
- Important limitation
- JavaScript checks and transformations cannot prove that application logic is correct. Test the result in its real project before publishing.
PRACTICAL EXAMPLE
Start with a small URL Parser example
The built-in sample makes the accepted input visible before you use your own project data.Example input
Loaded in the workspace
https://html-onlineviewer.com/tools?source=javascript&mode=learn#examplesRun the sample first, then change one value at a time so each result remains easy to explain.
What this example demonstrates
Inspect a URL protocol, origin, host, path, query parameters and fragment without visiting the destination.
Keep the original file, review the generated result and test production code in its real application before publishing.
COMMON QUESTIONS
URL Parser FAQ
Is URL Parser free?
Yes. It is free to use and requires no account.
Does URL Parser upload my source?
No. Ordinary processing happens locally in the current browser. The JavaScript runner uses a short-lived isolated browser worker.
Can I import and export a file with URL Parser?
Yes. Import a relevant JavaScript, JSON or text file, then save the input or processed result.