01
Select Mode & Parameters
Toggle between Encode and Decode. Check the Component Mode box for strict encoding.
URL Encoder Decoder Online
Encode plain text strings into percent-encoded URL formats or translate encoded URLs back into normal text. Client-side conversion, zero server requests.
Developer Tool
URL Encoder Decoder Online
Processed Output
How to use
Use this tool in three simple steps
Our workflow is designed to be straightforward, allowing you to complete your task in seconds.
02
Paste URL or String
Input your text block or URL into the raw input textbox.
03
Review & Copy
Look for any malformed string indicators, then copy the result to your clipboard.
Fast results
Numbers update in real time, so iteration stays quick.
Focused UI
Clean hierarchy keeps actions and outputs easy to scan.
SEO ready
Structured sections improve readability and crawlability.
Scalable shell
New tools can reuse this layout without UI drift.
Use cases
Useful for different workflows
Query Parameters
Strictly encode parameter keys and values for API queries.
Web Redirects
Encode full URLs inside redirect destination parameter strings.
Decode Search Queries
Decode percent-encoded strings to analyze user search paths.
Tool guide
What is URL Encoding?
URL encoding, also known as percent-encoding, is a mechanism for mapping arbitrary binary data into strings that comply with standard URL schemas. Special characters, spaces, and non-ASCII characters are represented using '%' prefixes (for example, a space is converted to '%20').
encodeURI vs encodeURIComponent
Developers face bugs when mapping query strings inside redirect links. Using standard encoding maps keeps parameters separated by '&' and '=', but fails if parameter values themselves contain these characters. Strict Component Mode solves this by encoding every special character, turning `http://test.com?p=1` into a completely URL-safe string.
How to Use URL Encoder & Decoder
Paste your parameters or URL strings in the input box, configure the strict component checkbox according to your engineering requirements, and standard translations are generated in real-time. Everything happens in your browser, keeping API endpoints, links, and parameters secure.
FAQ
Frequently asked questions
Why do we need URL encoding?
URLs can only be sent over the Internet using the ASCII character-set. Since URLs often contain characters outside the ASCII set, they must be converted into a valid ASCII format. URL encoding replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits.
What is the difference between standard and component mode?
Standard mode (`encodeURI`) is designed to encode a full, functional URL, keeping scheme symbols (like http://) and domains intact. Component mode (`encodeURIComponent`) is stricter and encodes all special characters (including colons, slashes, and question marks), making it perfect for query parameter values.
Is there a size limit to the URLs I can decode?
No. The encoding and decoding run natively inside your browser's memory, so there are no server-imposed file size or request string limits.
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