Use the free URL Query Parameter Editor below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
What Hides Inside a URL After the Question Mark
Everything after the question mark in a URL is the query string: a list of name and value pairs that tell the server what you want. In https://example.com/search?q=shoes&page=2, the query says search for shoes and show page two. In a tracking link, the query carries campaign names, source labels, and referral codes. In a shared document link, it can carry sorting, filters, and view settings. Editing these pairs by hand in the address bar is fiddly work: one missed ampersand or unencoded space breaks the whole link.
This editor turns that fiddly work into a table. Paste the URL, load its parameters, and each pair becomes a row you can edit, delete, or add to. When you rebuild, the tool reassembles the URL with proper encoding, so spaces become %20 and special characters are escaped correctly. You copy a link that works instead of one that almost works.
How Query Parameters Work
A query string is a series of pairs joined by ampersands, each pair written as name=value. The name and value are percent-encoded: characters that have a special meaning in URLs, such as spaces, ampersands, and question marks, are replaced with a percent sign and a code. That is why a search for red shoes appears as q=red%20shoes. Modern browsers hide this encoding in the address bar, which makes hand-editing even riskier, because you cannot see what is really there.
Order usually does not matter to the server, but duplicates do. A URL can legally contain the same name twice, as in tag=red&tag=blue, and servers handle that differently: some take the first value, some take the last, and some collect both into a list. This editor keeps duplicates as separate rows, so you can see exactly what the URL contains instead of silently collapsing it.
Practical Uses for Editing Parameters
The most common use is cleaning a link before sharing it. Marketing links arrive loaded with tracking parameters such as utm_source, utm_medium, and utm_campaign. Deleting those rows gives you the same destination without the tracking baggage. Another common use is fixing a filter or page number: change page=7 to page=1, or change a sort order, without re-navigating the site. A third is building test links: add a parameter your application reads, such as debug=true or lang=es, and see how the page responds.
Developers use parameter editing constantly when testing APIs. An API endpoint that accepts filters, limits, and offsets is really a URL with a query string, and editing the query is how you ask for a different page of results or a different filter. Keeping a clean, working URL for each test case saves real time across a debugging session.
What to Watch Out For
Never paste a URL containing a password, token, or session key into any tool and then share the rebuilt result. Some links carry secrets in the query string, and anyone with the link has the secret. If you see a token parameter, strip it before sharing, and assume the original link should be treated as private. The same applies to links with personal data: a search query or an address in the URL is visible to everyone who receives it.
Also be careful with encoding assumptions. Editing a value that is already encoded can double-encode it: a %20 can become %2520, which the server reads as the literal text %20 instead of a space. This editor decodes values when loading and re-encodes them when rebuilding, which avoids that trap, but pasting a half-edited URL back into the address bar by hand can reintroduce it. Always rebuild from the table, not from a hand-edited string.
Frequently Asked Questions
Why does my rebuilt URL look different from the original? Because values are re-encoded consistently. The meaning is the same, even if a space that was written as + now appears as %20.
Can I edit the part before the question mark? The path and domain stay as you pasted them. This tool edits query parameters only, which keeps the destination intact.
Does the tool send my URL anywhere? No. Parsing and rebuilding happen in your browser with the built-in URLSearchParams feature, and nothing is uploaded.
Paste the link, fix the table, rebuild, and share a URL you have actually checked instead of one you hope is right.
Related Tools
Also available in Spanish: Editar Parámetros de URL Gratis – Modifica la Query de tu Enlace.
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