Free URL Encoder & Decoder Online
Quickly securely encode special characters into safe URL percentages, or decode them back.
Plain URL
Encoded URL
🚀 Help Us Build More AI-Powered Tools
We're working on bringing free AI tools to Bizmatepro — including AI writing, image generation, code helpers, and more. Your support helps us cover server costs and keep 100+ tools completely free, with no ads and no signup.
How to Use the Free URL Encoder Decoder Tool
Our free URL encoder decoder tool provides an instant, developer-friendly way to translate web addresses. To url encode online, paste your standard text or raw web address into the "Plain URL" box on the left. The tool will automatically percent encode URL characters on the right.
To perform the reverse operation and url decode online, paste your scrambled, percent-encoded string into the right-hand box. The tool will instantly convert it back into a readable, standard URL. Plus, our built-in Query Parameter parser automatically extracts and neatly lists all ?key=value pairs found in your URL in a convenient table below.
Why Developers Need to Encode Special Characters in URL
API Request Building
When sending data to REST APIs via GET requests, dynamic user input (like a search query containing spaces or ampersands) must be encoded to prevent breaking the HTTP request structure.
Nested Redirects
If you are passing a full URL as a parameter inside another URL (e.g., https://example.com/login?redirect=https://dashboard.com/home), the inner URL must be percent-encoded to avoid confusing the browser.
Analytics Tracking
Marketers frequently decode URL parameters (like UTM tags) to read campaign tracking data. If campaign names include spaces, they must be converted to %20.
International Characters
URLs technically only support standard ASCII characters. If your web address contains Arabic, Chinese, Bengali, or emojis, those characters must be encoded into their UTF-8 byte representations.
Common Percent-Encoded Characters
| Character | Description | Percent-Encoding |
|---|---|---|
| Space | Blank space | %20 |
| & | Ampersand | %26 |
| = | Equals Sign | %3D |
| ? | Question Mark | %3F |
| / | Forward Slash | %2F |
Frequently Asked Questions
What is the difference between encodeURI() and encodeURIComponent()?
In JavaScript, encodeURI() is used for full URLs. It ignores characters that are part of the URL structure (like /, ?, &, :). However, encodeURIComponent() encodes everything. It is used when you are encoding a specific value to be placed inside a query parameter. Our tool uses encodeURIComponent() to ensure maximum safety when building query strings.
Why do spaces sometimes become plus signs (+) instead of %20?
Historically, the application/x-www-form-urlencoded specification used in older HTML forms converted spaces to + signs. However, modern percent-encoding (RFC 3986) strictly dictates that spaces should be encoded as %20. Our tool adheres to the modern RFC 3986 standard.
Is my data sent to your servers?
No. All encoding and decoding operations happen instantly via Client-Side Javascript inside your own web browser. We do not track, log, or save the URLs or data payloads you paste into this tool.