What Is URL Decoding?
URL decoding reverses percent-encoding, converting %XX sequences back into their original characters — turning "hello%20world" back into "hello world", for example.
It is useful whenever you have a URL or query string copied from a browser's address bar, server log, or API response and want to read its actual, human-readable content.
누가 이 도구를 사용하나요?
비즈니스용
Decode a tracking parameter copied from a marketing URL.
개인 사용
Read the actual content of a long, encoded link.
학생용
Learn how percent-decoding works for a web development course.
사무실용
Decode a query string copied from a server access log.
주요 기능
Two Decoding Modes
Decode as a single component or as a full URL.
Instant Decoding
Output updates immediately as you paste in encoded text.
100% Private
Your text is never uploaded or stored.
One-Click Copy
Copy the decoded result straight to your clipboard.
이점
Read Encoded URLs Instantly
See the real, human-readable content behind a percent-encoded string.
Clear Error Messages
Malformed encoding is reported clearly instead of failing silently.
No Software Needed
Decode directly in the browser — no command line required.
URL 디코더 사용 방법
Paste the Encoded Text
Add the percent-encoded string or URL.
Read the Decoded Result
The original text appears automatically.
Copy the Result
Use the Copy button to grab the decoded text.
기술 세부 정보
| 항목 | 값 |
|---|---|
| 입력 | Percent-encoded text or full URLs |
| 처리 | No practical limit — handled entirely by your browser |
| 출력 | Exact decoding using the browser's native decodeURIComponent/decodeURI |
개인정보 보호 및 보안
이 도구를 사용할 때 파일에 실제로 어떤 일이 일어나는지 알아보세요.
100% Client-Side
This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.
No Upload, Ever
There is no file upload and no server processing step — your data never leaves your device.
Works Offline
Once this page has loaded, the tool keeps working even without an internet connection.
Nothing Stored
Nothing you enter is saved on our servers — refreshing the page clears everything.
No Tracking of Your Input
We have no way to see what you type, generate or convert with this tool.
팁
Use Full-URL Mode for Complete Links
Switch modes if component decoding reports an error on a full URL.
Check for Double-Encoding
If the result still contains %XX sequences, the text may have been encoded twice — decode it again.