Web & SEO

Query String Builder

Build and parse URL query parameters.

Browser-onlyInstant outputLocal data

Paramètres de requête

CléValeur

Paramètres remplis

Aperçu

?tool=json-formatter&lang=fr

Chaîne de requête encodée

Pourquoi utiliser cet outil

Create query strings from key-value rows and parse query strings back.

Query String Builder simplifies URL parameter editing.

It supports both compose and parse directions.

01Add key-value pairs or paste query text.

02Copy the generated query string.

Confirm the input is the format you intended.

Scan the result before using it in a document, URL, config, or message.

Copy only the output you need.

Are values URL encoded?

Yes. Keys and values are encoded safely.

Can I parse an existing query string?

Yes. Paste a query string and the tool splits it into editable key-value rows.

Does it handle repeated keys?

Yes. The same key can appear in multiple rows and each instance is included in the output.

Build, lint, and hand off tracked links with UTM, preserved params, custom rows, and QR preview in one workspace.

Break a URL into protocol, host, path, and query parts.

Format, minify, and validate JSON in one place.