01
Choose encode or decode
Pick encode to make text URL-safe, or decode to turn percent-encoded strings back into readable text.
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
100% Secure & Private
Processed locally in your browser. No data is sent to our servers.
How to use
Use this percent encoding decoder in three simple steps
Our workflow is designed to be straightforward, allowing you to complete your task in seconds.
02
Paste your URL or string
Drop in the full link or query parameter, and toggle strict component mode when you need every special character escaped.
03
Review and copy the result
The converted output appears instantly. Copy it for use in links, API calls, or redirect parameters.
Percent Encoding
Properly formats spaces, symbols, and parameters for safe URLs.
Query String Safe
Ensures your payloads won't break web server request limits.
Two-way Decode
Restores broken, heavily percent-encoded links back to text.
Browser Secured
Processes your private tokens and API routes securely offline.
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.
Is my private text data stored or saved on your servers?
No, your text is processed entirely in your browser's temporary memory. We do not store, track, or share any of your inputs.
What characters get encoded?
Spaces, ampersands, question marks, slashes, and non-ASCII characters are replaced with a percent sign and two hex digits. Standard mode keeps structural symbols like :// intact, while component mode escapes them all.
Is this tool free for commercial and developer use?
Yes. It is completely free with no signup and no request limits, so you can encode and decode as many URLs or parameters as your project needs.
From our blog
Encode and Decode URLs the Easy Way
Read the full guide behind the URL Encoder Decoder Online and get the most out of it.
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