How Do I Fix a Broken Tracking or Share Link?
A practical checklist for decoding, editing, and re-encoding UTM links, email links, and share URLs.
Notes & guides.
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What Does `URLSearchParams` Encode?
A plain explanation of JavaScript `URLSearchParams`, form-style encoding, plus signs, and when to decode query strings.
When Should I Encode `/`, `?`, and `#` in a URL?
How slashes, question marks, and hash signs change meaning depending on whether they are syntax or data.
How Does URL Encoding Handle Unicode, Emoji, and Accents?
Why non-ASCII text becomes multiple percent codes and how UTF-8 keeps international characters safe in URLs.
How Do I Encode a Redirect URL Inside Another URL?
A guide to nested URLs, OAuth `redirect_uri`, `next` parameters, and why inner question marks and ampersands must be encoded.
What Is Double URL Encoding?
How `%2520`, `%252F`, and `%253D` happen, how to diagnose them, and when to encode or decode only once.
How Do I Decode Query Parameters Safely?
A debugging guide for reading query strings while preserving `%26`, `%3D`, plus signs, and encoded redirect URLs.
Why Does an Ampersand Break My Query String?
How ampersands, equals signs, and question marks change query strings — and how URL encoding keeps values intact.
Should I Use `encodeURI` or `encodeURIComponent`?
A practical decision guide for JavaScript URL encoding, query values, complete URLs, and broken ampersands.
Should Spaces in URLs Be `%20` or `+`?
A focused explanation of when spaces become `%20`, when they become plus signs, and why literal plus signs need care.
How Do I Decode a URL?
A plain-English guide to decoding percent-encoded links, query strings, and tracking URLs without losing meaning.
What URL Encoding Actually Does
A practical answer to what URL encoding means, when to use it, and how percent-encoded text keeps links from breaking.