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DEVELOPER TOOLS · FREE ONLINE TOOL
URL Encoder/Decoder
Encode or decode URLs and query strings instantlyURLs have a strict alphabet: spaces, ampersands, and non-English characters break a link if they appear raw. This tool translates both ways, percent-encoding special characters into %XX form, and decoding garbled URLs back into readable text.
// URL ENCODER/DECODER · GET STARTED
Use URL Encoder/Decoder
Encode or decode URLs and query strings instantly
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0 characters. Runs 100% in your browser, nothing is uploaded.
Encode component escapes everything except letters, digits and - _ . ! ~ * ' ( ), which is right for a single query value. Encode full URL keeps : / ? & = intact so the link still works as a whole.
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How to use the URL Encoder/Decoder
Pick encode or decode
Choose Encode component, Encode full URL, or Decode.
Copy the result
Copy the result with one click and use it in your link or code.
// URL ENCODER/DECODER · ABOUT THIS TOOL
About the URL Encoder/Decoder
URLs can only contain a limited set of characters, so anything outside that set has to be percent-encoded first. This free encoder gives you both flavours developers actually use: component encoding for individual values (like encodeURIComponent) and full URL encoding that keeps the scheme, slashes and query structure intact.
Decoding reverses the process and reports a clear error on broken percent sequences. Everything runs locally in your browser, so you can safely paste staging URLs, signed links or internal addresses.
Where it helps most
The everyday moments URLs need translating.
API query strings
Building query strings by hand without encoding is the classic source of APIs receiving truncated or mangled values. Encode each parameter value before joining them, and the fix is always that simple.
Decoding garbled links
Links copied from emails, logs, and analytics reports often arrive fully encoded, a wall of percent signs where readable text should be. One decode pass restores the original instantly.
Non-English characters
Non-ASCII characters in names or addresses become their UTF-8 percent-encoded forms. Without encoding, spaces, ampersands, and question marks break a URL or silently change its meaning.
Debugging API values
The subtle trap is double encoding, where an already-encoded value gets encoded again and %20 becomes %2520. If a server complains about a value that looks right, check for a stray second pass.
Encoding rules that save you
Small rules, fewer broken requests.
Encode values, not URLs
Encode the parameter values, not the whole URL. The :// and ? separators must stay literal, or the URL stops being a URL.
Watch for double encoding
An already-encoded value encoded again turns %20 into %2520. If a request fails mysteriously, look for a stray second pass.
Decode before reading logs
Decoding is the fastest way to understand what a logged request actually contained or where a pasted link really points.
URL Encoder/Decoder: built for trust
Translate URLs both ways in seconds. Free, instant, no signup, no waiting.
URL Encoder/Decoder FAQs
Anything outside the unreserved set: spaces become %20, and reserved characters like ?, &, =, #, and non-ASCII characters get encoded when they appear inside values. Letters, digits, and - _ . ~ always pass through untouched.
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