URL 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.
Runs in your browser
Nothing uploaded
Free, no signup
Ctrl + Enter to run · Recent brings back your last inputs · Everything stays in this browser
URL Encoder / Decoder: questions
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.
Related tools
All 112 free tools
JSON Formatter & ValidatorPretty-print & validate JSON
Image Resize CalculatorCalculate new dimensions while preserving aspect ratio
Password Strength CheckerAnalyze password entropy and weaknesses
YAML ↔ JSON ConverterConvert between YAML and JSON
JSON to YAMLConvert JSON to YAML format
JSON Schema GeneratorInfer and validate API contracts
Made something with AI? Share it as a private link.
Drop in the HTML from Claude, ChatGPT or any editor and get a link your client can open anywhere — with a password, view tracking, comments and approval.