Free Online URL Encoder and Decoder Tool for Developers
URL Encoder Decoder tool that instantly encodes and decodes URLs, query parameters, and special characters. Process single or bulk URLs with encodeURIComponent and encodeURI methods. 100% free, private, and browser-based with no data stored.
Encode or Decode Your URL
How to Use the URL Encoder Decoder Tool
Select Mode
Choose between Encode or Decode mode by clicking the appropriate tab at the top of the tool.
Enter Your Text or URL
Type or paste your URL, query string, or text into the input textarea. You can enter multiple URLs on separate lines for bulk processing.
Choose Encoding Method
Select the encoding method: encodeURIComponent for query parameters or encodeURI for full URLs. For decoding, the tool auto-detects the method.
Click Encode or Decode
Click the Encode URL or Decode URL button to process your input instantly in your browser.
Copy or Download Result
Copy the encoded or decoded result to your clipboard with one click, or download it as a text file for later use.
Key Features of Our URL Encoder Decoder
100% Free Forever
Completely free URL encoding and decoding with no hidden charges, usage limits, or premium plans required.
Pixel-Perfect Accuracy
Uses native JavaScript encoding functions following RFC 3986 standards for guaranteed accurate results every time.
Instant Processing
All encoding and decoding happens in milliseconds right in your browser with zero server latency or delays.
Complete Privacy
Your URLs and data never leave your device. No server processing, no data storage, no third-party sharing.
No Signup Required
Start encoding and decoding URLs immediately without creating an account, providing email, or any registration.
Mobile-Friendly Design
Fully responsive interface that works perfectly on smartphones, tablets, and desktop computers of all sizes.
How URL Encoding and Decoding Works
Character → % + Hexadecimal Value (UTF-8) Space → %20 | & → %26 | = → %3D | ? → %3FEach unsafe or reserved character is replaced with a percent sign followed by its UTF-8 hexadecimal byte value
Encoding and Decoding Methods Explained
- encodeURIComponent(): Encodes all special characters including colons, slashes, question marks, and hash symbols. Ideal for encoding individual query parameter values like search terms, user input, or file names that will be placed inside a URL.
- encodeURI(): Encodes special characters but preserves URI structure characters like ://?#[]@ that are essential for valid URL syntax. Use this when you want to encode a complete URL while keeping it functional and navigable.
- decodeURIComponent(): Decodes all percent-encoded sequences back to their original characters, including those that encodeURIComponent would encode. This is the universal decoder for query parameter values.
- decodeURI(): Decodes percent-encoded sequences but does not decode characters that are valid URI structure characters. This maintains the URL structure while converting encoded text back to readable format.
- UTF-8 Multi-Byte Encoding: Non-ASCII characters like Hindi text (नमस्ते) are first converted to their UTF-8 byte representation, then each byte is percent-encoded. A single Hindi character may produce 3 or more percent-encoded sequences.
URL encoding is essential in web development because URLs can only safely contain a limited set of ASCII characters defined in RFC 3986. When Indian developers build applications with Hindi, Tamil, or other regional language content in URLs, proper encoding ensures the characters are transmitted correctly across all web servers and browsers. For instance, a product search on an Indian e-commerce site searching for "लाल साड़ी" must encode each Hindi character into its UTF-8 percent-encoded form to work reliably across all platforms.
URL Encoding and Decoding Examples
Encoding a Search Query with Hindi Text
Use case: Encoding Hindi search terms for Indian travel booking website URLs
Encoding API Query Parameters
Use case: Encoding API parameters for Indian e-commerce applications with rupee symbols
Decoding an Encoded URL
Use case: Decoding percent-encoded URLs to view the readable Hindi product page path
Encoding Special Characters in Form Data
Use case: Encoding form submission data with email addresses and punctuation for Priya's contact form
What is a URL Encoder Decoder Tool?
A URL Encoder Decoder is an essential web development utility that converts characters in URLs to and from their percent-encoded format. This process is critical because URLs transmitted over the internet can only contain a limited set of characters from the ASCII character set. Characters like spaces, ampersands, question marks, and non-English scripts such as Hindi, Tamil, Bengali, or Telugu must be converted to a special percent-encoded format to be safely included in web addresses, API requests, and form submissions.
This free online URL Encoder Decoder tool is designed for web developers, SEO professionals, digital marketers, bloggers, and anyone in India or worldwide who works with URLs containing special characters. Whether you are building a multilingual website with Hindi content, debugging API calls with complex query parameters, or cleaning up URLs for your marketing campaigns, this tool provides instant and accurate results using industry-standard JavaScript encoding functions.
Our tool supports two encoding methods: encodeURIComponent for encoding individual query parameter values, and encodeURI for encoding complete URLs while preserving their structure. Built with expertise in web standards and URI specification RFC 3986, this tool delivers the same encoding quality as professional developer environments. All processing happens locally in your browser, ensuring complete privacy with zero data transmission to external servers. Indian developers, students learning web development, and professionals working with Indian language URLs particularly benefit from our tool's comprehensive Unicode support and instant processing capabilities.