URL Encoder/Decoder Articles

URL Structure: Query String Parsing Ambiguities, Punycode, and Open Redirect Vulnerabilities

A URL has five components — and bugs come from confusing which part you're encoding. Here's query string parsing ambiguities between frameworks, IDN Punycode for international domains, URL normalisation for comparison, open redirect vulnerabilities, and relative URL resolution edge cases.

Jun 9, 2026

URL Encoding Edge Cases That Break Real Applications

The difference between encoding a full URL and a URL component, why + and %20 aren't always interchangeable, how double-encoding silently corrupts data, and the characters that break most URL handling code.

Jun 8, 2026

URL Encoder/Decoder — Percent-Encode & Decode URLs Instantly

Learn why URL encoding exists, how percent-encoding works, the difference between %20 and + for spaces, and how to encode and decode URLs correctly for APIs and query strings.

Jun 6, 2026