Why URL encoding exists
A URL is not just normal text. It has structure: protocol, domain, path, query string, anchors, separators, and special characters. When a URL contains spaces, Arabic text, symbols, tracking values, or pasted text from another source, it may need encoding before it can be safely used.
URL encoding converts special characters into percent-encoded form. A space can become %20, a question mark can become %3F when it belongs inside a value, and non-Latin text can be represented safely in a link. This prevents broken links, incomplete query strings, and forms that send the wrong value.
The URL Encoder / Decoder on IGY Apps is made for this exact task. You paste a URL or text string, choose Encode URI, Decode URI, or Encode Component, then copy the result. Everything runs in the browser.
When you need a URL encoder
Use a URL encoder when a link includes spaces, symbols, non-English text, or values that will be placed inside a query string. This happens often with search URLs, campaign links, redirect URLs, API examples, tracking parameters, and shared links created from user input.
For example, a parameter value may contain &, ?, =, or /. If those characters are not encoded correctly, the browser may treat them as part of the URL structure instead of part of the value. That can split the query string or change the meaning of the link.
URL decoding is the reverse. It helps when you receive a link full of %20, %2F, %3A, and similar sequences and need to understand the original text.
Encode URI vs Encode Component
The difference matters. Encode URI is used when you already have a full URL and want to encode characters that are unsafe while keeping normal URL structure intact. It keeps characters such as :, /, ?, and & because those characters may be part of the URL structure.
Encode Component is used when you are encoding only one value that will be placed inside a URL, such as a query parameter. It encodes more characters, including ?, &, and =, because those symbols should not break the surrounding URL.
Use Encode URI for a full link. Use Encode Component for a single parameter value. That simple rule avoids many broken tracking links and redirect URLs.
How to use the tool
Open URL Encoder / Decoder. Paste your text or URL into the input area.
Choose one of the actions:
- Encode URI when the input is a complete URL.
- Decode URI when you want to read an encoded URL.
- Encode Component when the input is a value that will be inserted into a query string.
After the result appears, use Copy to place it on your clipboard. Use Swap when you want to move the output back into the input area and continue working.
Common examples
If you are building a search URL, encode the search phrase before placing it inside the query parameter. A phrase such as summer sale shoes should not be pasted raw into every context.
If you are building a redirect URL, encode the target URL as a component before placing it inside another URL. Otherwise the inner ? and & may break the outer link.
If you are reading analytics links, decode them to inspect campaign names, landing pages, or hidden redirect targets.
If you are preparing page slugs, use Slug Generator instead. Slugs are not the same as encoded URLs. A slug should be clean, readable, and SEO-friendly, while URL encoding is about safely representing characters inside a URL.
URL encoding vs HTML entities
URL encoding is for URLs. HTML entity encoding is for HTML content. They solve different problems.
If text is going inside a link or query string, URL encoding is usually the right tool. If characters such as <, >, &, or quotes need to appear safely inside HTML source, use HTML Entity Encoder.
Confusing the two can create strange output. %20 belongs in encoded URLs, while & belongs in HTML contexts.
Privacy and safe handling
The URL Encoder / Decoder runs locally in your browser. That is useful when working with private query strings, draft campaign URLs, internal links, or API examples you do not want to send to another service.
Still, encoding is not encryption. It does not hide secrets. Anyone can decode an encoded URL. Never place passwords, private tokens, or sensitive personal data in URLs unless the system is designed for that and the risk is understood.
Final recommendation
Use URL Encoder / Decoder whenever a link contains special characters, non-English text, or query values that must stay intact. Encode full URLs with Encode URI, encode parameter values with Encode Component, and decode encoded links when you need to inspect them.
For nearby text workflows, use Slug Generator for readable page slugs and HTML Entity Encoder for safe HTML characters.