URL Encoder/Decoder
Instantly encode special characters in URLs for safe transmission across the web, or decode percent-encoded strings back to their original human-readable format. URL encoding (also called percent-encoding) replaces unsafe characters — like spaces, ampersands, equals signs, and international characters — with a % followed by two hexadecimal digits. This is essential when building query strings, passing parameters in APIs, creating bookmarkable links, or debugging web requests. Our URL Encoder/Decoder works on full URLs, query parameters, or individual strings, making it useful for web developers, QA testers, and anyone troubleshooting broken links or API calls.
URL Encoder / Decoder
Encode or decode URL strings and components.
How to Use URL Encoder/Decoder
- 1Paste your URL or string into the input field
- 2Click "Encode" to convert special characters to percent-encoded format
- 3Or click "Decode" to convert a percent-encoded URL back to plain text
- 4The result appears instantly in the output field
- 5Click "Copy" to copy the encoded or decoded result to your clipboard
About URL Encoder/Decoder
Instantly encode special characters in URLs for safe transmission across the web, or decode percent-encoded strings back to their original human-readable format. URL encoding (also called percent-encoding) replaces unsafe characters — like spaces, ampersands, equals signs, and international characters — with a % followed by two hexadecimal digits. This is essential when building query strings, passing parameters in APIs, creating bookmarkable links, or debugging web requests. Our URL Encoder/Decoder works on full URLs, query parameters, or individual strings, making it useful for web developers, QA testers, and anyone troubleshooting broken links or API calls.
Your Privacy is Protected
URL Encoder/Decoder runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
What is URL encoding?
URL encoding (percent-encoding) replaces unsafe characters with a % followed by two hex digits. For example, a space becomes %20 and & becomes %26. This ensures URLs are transmitted safely over the internet.
When do I need to URL encode a string?
You need URL encoding when passing data in query parameters, building API request URLs, embedding links with special characters, or when working with form submissions that contain non-ASCII characters.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL, preserving characters like /, ?, #, &. encodeURIComponent encodes an individual component (like a parameter value) and encodes those additional characters too. Our tool performs full encodeURIComponent encoding by default.
Are my URLs stored or logged?
No. All encoding and decoding happens entirely in your browser. Nothing is sent to any server, so your URLs and query strings remain completely private.
Why Use This Tool?
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