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JSON URL-decoder

World's simplest json tool
Free online JSON URL decoder. Just load your URL-encoded JSON in the input field and it will automatically get converted back to regular, readable JSON. It can't get any easier than this! Created for developers by developers from team Browserling.
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What is a JSON URL-decoder?

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This tool converts previously URL-escaped JavaScript Object Notation (JSON) data back to plain-text JSON, which you can read and edit. The process of encoding and passing JSON data in URLs is called URL encoding. It converts special characters such as spaces, quotes, brackets, and newlines into sequences of characters starting with the percent sign ("%"). For example, a space in URL encoding looks like "%20", while square brackets "[" and "]" look like "%5b" and "%5d", and curly brackets "{" and "}" look like "%7b" and "%7d". URL-encoded JSON is convenient for data transmission via GET requests, but it's almost impossible to read and edit. This tool converts all these percent-number-number sequences back into regular characters, resulting in plain JSON text that can be further edited and adjusted. If you need to URL-escape plain JSON, you can use our reverse tool – JSON URL-encoder. Json-abulous!

JSON URL-decoder examples

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Decode a URL-escaped JSON Array
In this example, we URL-unescape a JSON array that was previously URL-escaped. The input contains percent-encoded sequences of special URL characters like spaces, brackets, quotes, and newlines. The tool successfully converts these sequences back to the original ASCII characters, resulting in a valid and readable JSON array.
%5b%0a%20%20%22this%22%2c%0a%20%20%22is%22%2c%0a%20%20%22just%22%2c%0a%20%20%22a%22%2c%0a%20%20%22json%22%2c%0a%20%20%22array%22%2c%0a%20%20%22hooray!%22%0a%5d
[ "this", "is", "just", "a", "json", "array", "hooray!" ]
URL-unescape a JSON Object
In this example, we decode a JSON object containing the nine key principles of UNIX philosophy. The input is a URL-encoded JSON object, and after the tool processes it, the output displays a well-structured and indented JSON object with decoded values, making it readable and editable.
%7B%0A%20%20%22author%22%20%3A%20%22Mike%20Gancarz%22%2C%0A%20%20%22title%22%20%3A%20%22Summary%20of%20UNIX%20Philosophy%22%2C%0A%20%20%22summary%22%20%3A%20%5B%0A%20%20%20%20%22Small%20is%20beautiful.%22%2C%0A%20%20%20%20%22Make%20each%20program%20do%20one%20thing%20well.%22%2C%0A%20%20%20%20%22Build%20a%20prototype%20as%20soon%20as%20possible.%22%2C%0A%20%20%20%20%22Choose%20portability%20over%20efficiency.%22%2C%0A%20%20%20%20%22Store%20data%20in%20flat%20text%20files.%22%2C%0A%20%20%20%20%22Use%20software%20leverage%20to%20your%20advantage.%22%2C%0A%20%20%20%20%22Use%20shell%20scripts%20to%20increase%20leverage%20and%20portability.%22%2C%0A%20%20%20%20%22Avoid%20captive%20user%20interfaces.%22%2C%0A%20%20%20%20%22Make%20every%20program%20a%20filter.%22%0A%20%20%5D%0A%7D
{ "author" : "Mike Gancarz", "title" : "Summary of UNIX Philosophy", "summary" : [ "Small is beautiful.", "Make each program do one thing well.", "Build a prototype as soon as possible.", "Choose portability over efficiency.", "Store data in flat text files.", "Use software leverage to your advantage.", "Use shell scripts to increase leverage and portability.", "Avoid captive user interfaces.", "Make every program a filter." ] }
Fully Encoded JSON
In this example, we load a URL-encoded JSON string where all characters are in hexadecimal form "%HH", including letters and numbers. This type of encoding is called full URL encoding as even printable symbols are encoded. The tool decodes each hexadecimal value and returns a clean JSON object representing apple varieties.
%7B%0A%20%20%22%74%69%74%6C%65%22%3A%20%22%41%70%70%6C%65%22%2C%0A%20%20%22%63%6F%6C%6F%72%22%3A%20%22%72%65%64%22%2C%0A%20%20%22%76%61%72%69%65%74%69%65%73%22%3A%20%5B%0A%20%20%20%20%22%47%61%6C%61%22%2C%0A%20%20%20%20%22%48%6F%6E%65%79%63%72%69%73%70%22%2C%0A%20%20%20%20%22%46%75%6A%69%22%0A%20%20%5D%0A%7D
{ "title": "Apple", "color": "red", "varieties": [ "Gala", "Honeycrisp", "Fuji" ] }
Pro tips Master online json tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinejsontools.com/url-decode-json?input=%255b%250a%2520%2520%2522this%2522%252c%250a%2520%2520%2522is%2522%252c%250a%2520%2520%2522just%2522%252c%250a%2520%2520%2522a%2522%252c%250a%2520%2520%2522json%2522%252c%250a%2520%2520%2522array%2522%252c%250a%2520%2520%2522hooray%21%2522%250a%255d
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Quickly convert URL-escaped JSON back to JSON.
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