What is the difference between encodeURI and encodeURIComponent?

encodeURI is intended for a complete URI and preserves URI syntax characters, while encodeURIComponent is intended for an individual URI component such as a query parameter value and encodes more reserved characters.

Can I decode a percent-encoded URL?

Yes. Paste an encoded URL or text into the decoder and the tool will attempt to convert percent-encoded sequences back into readable characters.

Is URL encoding the same as encryption?

No. URL encoding is a formatting and transport mechanism, not a security or encryption method. Encoded data should not be treated as secret.

Does this URL tool upload my data?

The core encoding and decoding operations run in your browser using JavaScript, so the text does not need to be uploaded to a server.

Free URL Encoder & Decoder Online

Q: What is URL encoding?

URL encoding converts characters that have special meanings or are not safe in a URL into percent-encoded representations, such as converting a space into %20.

Free Online URL Encoder & Decoder

Ready • Paste a URL or text

Input0 characters

Result0 characters

Convert while typing

Encode spaces as +

Support Unicode text

Preserve URL-safe characters

0Input Characters

0Result Characters

0Words

0%Length Change

—Protocol

URL Components & Query Parameters

Enter a complete URL to inspect its protocol, hostname, port, pathname, hash and query parameters.

Powerful Features

Everything You Need for URL Encoding

A practical URL utility for developers, SEO professionals, marketers, students and anyone who works with web links or query strings.

Encode URI

Encode a complete URI while preserving characters that form normal URI syntax.

Decode URI

Convert percent-encoded URI sequences back into readable text.

Encode Components

Safely encode individual query parameter values, paths or other URI components.

Decode Components

Decode individual URL components and percent-encoded values.

Plus Encoding

Convert spaces to plus signs for common application/x-www-form-urlencoded data.

Unicode Support

Handle international characters and multilingual text through standard JavaScript URI functions.

Query Inspector

Parse a complete URL and inspect query parameter keys and values in a clean table.

URL Components

See protocol, hostname, port, pathname, search query and hash information.

Copy Result

Copy your encoded or decoded result to the clipboard with one click.

Download Result

Save the transformed URL or text as a plain TXT file for later use.

Swap Input & Result

Move the current result back into the input box to chain encoding and decoding operations.

Live Statistics

Monitor character counts, word count, length changes and detected URL protocol.

URL Encoding Guide

What Is URL Encoding?

URL encoding, also called percent encoding, is a method used to represent characters in a URL in a form that can be safely transmitted and interpreted by web systems. Certain characters have reserved meanings in URLs, while others may not be suitable for direct use. Encoding represents such characters using a percent sign followed by hexadecimal digits.

Why Do URLs Need Encoding?

Web addresses often contain spaces, non-ASCII characters and punctuation. A URL encoder converts characters into representations that are safer to transport as part of a URI. For example, a space is commonly represented as %20 in percent encoding. Form-style encoding may represent a space with a plus sign instead.

URL Encoding vs URL Decoding

Encoding transforms readable characters into URL-safe representations. Decoding performs the reverse operation when valid percent-encoded sequences are present. If you receive a URL containing sequences such as percent signs followed by hexadecimal values, a decoder can make those sequences easier to read.

encodeURI vs encodeURIComponent

These two JavaScript operations have different purposes. encodeURI() is designed for a complete URI and leaves certain reserved characters intact because they help define URI structure. encodeURIComponent() is intended for a single URI component, such as a query parameter value, and therefore encodes a wider set of characters.

When Should You Encode a Query Parameter?

If a value is being inserted into a query string, encoding the individual value is generally safer than manually concatenating raw text. For example, a search value containing spaces or symbols can be encoded before being added to a parameter. This prevents characters in the value from accidentally being interpreted as URL syntax.

URL Encoding for Developers

Developers use URL encoding when constructing links, API requests, redirects, tracking URLs, form submissions and query strings. It is especially important when data contains spaces, ampersands, question marks, equals signs or non-Latin characters.

URL Encoding for SEO

SEO professionals may encounter encoded URLs when working with tracking parameters, international URLs, redirects and technical audits. Encoding does not automatically improve rankings, but correctly formatted URLs can reduce technical problems and make links more reliable.

Is URL Encoding Encryption?

No. URL encoding is not encryption. It does not hide information or protect confidential data. Anyone who understands percent encoding can decode it. Never use URL encoding as a replacement for encryption, authentication or secure data protection.

What Happens to Spaces?

In standard percent encoding, a space is commonly represented as %20. In application/x-www-form-urlencoded data, spaces are commonly represented by +. The exact representation depends on the context in which the data is being encoded.

Frequently Asked Questions

URL Encoder & Decoder FAQs

A URL encoder converts characters into percent-encoded representations that can be safely included in URLs or URI components.

A URL decoder reverses valid percent encoding and converts encoded sequences into their readable character forms.

Use URI encoding for a complete URI when you want to preserve its structural characters. Use component encoding for individual values, such as query parameter values.

Percent encoding represents a space using the hexadecimal byte value format. In some form-encoded contexts, a space may instead be represented with a plus sign.

Yes. Modern URL encoding functions can handle Unicode text. This tool uses browser-native URI functions for the core transformation.

No. Encoding is not encryption. Encoded information can be decoded easily and should not be used to protect confidential information.

The core encoder and decoder operate locally in your browser and do not require sending the text to a server for conversion.

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