URL Builder

Create a URL locally from structured components while letting the browser URL parser handle percent encoding.

Scheme

Hostname

Port (optional)

Path

Fragment

Query parameters — one key=value per line; duplicate keys allowed

ReadyThe browser URL API performs component percent encoding.

Before editing a URL

Inspect structure first, then normalize or edit only the part you mean to change. Browser-local tools avoid sending pasted links to a remote parser.

ParseSeparate scheme, authority, path, query and fragment.

Normalize deliberatelyChoose cleanup rules instead of assuming one universal canonical URL.

Edit / expandWork with query rows, relative references or URI templates structurally.

Compare / batchAudit repeated params or many URLs without fetching them.

Verify destination contextSyntax tools cannot prove a URL exists, redirects safely or is authorized.

Parse Normalize Edit query Diff query Batch parse Remove tracking Resolve relative URI template OAuth URL

URL tools are string-processing utilities. They do not crawl destinations, follow redirects, resolve DNS, check TLS, or verify OAuth provider registration.

URL round-trip parser

Build the URL with the main tool, parse it back into origin, path, duplicate query keys and fragment, and expose the encoded form actually handed to a browser.

—Origin

—Query pairs

—Duplicate keys

Key	Value

Ready.

Before editing a URL

Parse before editing, normalize only with explicit rules, preserve repeated query keys when they matter, and use batch tools when you need to audit many links consistently.

Syntax is not reachability

These browser-local tools do not resolve DNS, follow redirects, inspect remote HTTP status, verify TLS, or decide search-engine canonicalization.