HTMLURL Encoder / Decoder
Encode or decode full URLs and query components, then export a privacy-safe URL encoding QA pack with malformed percent checks, query/redirect risk signals, unsafe-scheme notes, and a starter Node guard. Raw URLs, query values, credentials, and fragments are intentionally omitted from the pack. Runs entirely in your browser.
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What is in the URL encoding QA pack?
It summarizes mode, character counts, percent-encoded triplets, malformed percent markers, query parameter counts, duplicate names, redirect-like fields, nested URL values, unsafe schemes, userinfo, fragments, and a starter Node guard without copying the raw URL or query values.
What is the difference between encodeURI and encodeURIComponent?
encodeURI preserves URL structure characters (/, :, ?, #, &) — use it on a full URL. encodeURIComponent encodes everything including those characters — use it on individual query parameter values.
Does the QA pack prove a redirect is safe?
No. It flags derived URL-shape risks that help with review. Redirect allowlists, open-redirect protections, and final routing behavior still need to be verified in the receiving application.