URL Decoder

This decoder reverses percent codes so you read original text behind URLs. Percent twenty becomes space, percent twenty-six ampersand, percent C3 A9 e-acute back to real chars. Plus becomes space per query standard, matching HTML forms from Dallas to Boston. Runs locally with no uploads for sensitive links.

How decoding handles USA query quirks - Browsers encode spaces as percent twenty in paths but plus in query strings from GET forms. This tool maps plus to percent twenty first, then decodeURIComponent resolves UTF-8 sequences including emoji four-byte groups. Invalid lone percent like percent ZZ returns clear error instead of crashing scripts. Lengths before after show shrink from encoding overhead.

Debugging uses - Paste access logs to see search terms behind q equals codes. Inspect redirect chains where double encoding stacks percent twenty-five twenty. Read webhook payloads with nested URLs. Verify share links hide no tracking params. Compare encoded versus decoded lengths to spot over-encoding.

Emoji and international text - Emoji store as four percent groups that decode together to smileys for social campaigns. Accents like café resolve from C3 A9 pairs for restaurant menus. Chinese Japanese Arabic bytes round trip if originally UTF-8 encoded. Latin-1 legacy percent E9 alone errors, signaling wrong charset in old systems.

Privacy and reliability - No network means pasting session tokens for inspection stays on device. Deterministic decode means same input same text across browsers. Large sitemap URLs of thousands of chars decode instantly limited by textarea. No normalization beyond plus handling, so hashes stay intact.

Limits and pairings - Decode only without fetching links or checking status. For building links use URL encoder after reading. For param tables use query parser across USA QA flows.