Free Online URL Encoder Tool
Encode any text or URL into a percent-encoded (URL-encoded) format instantly. Perfect for preparing query parameters, form submissions, and URL-safe data transmission. Handles special characters, Unicode, emojis, and reserved characters. 100% private — no server uploads.
https%3A%2F%2Fexample.com%2Fapi%2Fsearch%3Fq%3Dhello%20world%26category%3Dbooks%20%26%20more%26lang%3D%E6%97%A5%E6%9C%AC%E8%AA%9E%26emoji%3D%F0%9F%8E%89%F0%9F%91%8B%26filter%3D%7Bprice%3A10-50%7D%26callback%3Dtest
Uses encodeURIComponent · 100% client-side
How to Use the URL Encoder Tool
Enter Your Input
Type or paste your text, URL, or query string into the input area. The tool accepts any text including special characters, Unicode, and emojis.
Auto-Encode Instantly
The tool automatically percent-encodes your input in real-time. Reserved characters like ?, &, =, #, and spaces are converted to their %-encoded equivalents.
Copy or Clear
Copy the encoded URL string to your clipboard, or clear both fields to start over. Ready for use in API calls, redirects, and form submissions.
Powerful URL Encoder Features
Everything you need to percent-encode URLs and data safely — all in one free tool.
Instant Encoding
See your text percent-encoded in real-time as you type. No buttons to click — just type and go.
Unicode & Emoji Support
Properly encodes UTF-8 characters including emojis, accented letters, and international scripts like Arabic, Chinese, and Japanese.
Reserved Character Handling
Correctly encodes reserved URL characters: ? & = # / % + space and more, ensuring valid URL transmission.
Copy to Clipboard
Copy the percent-encoded output to your clipboard with a single click.
Character Count
Track input and output character counts to understand encoding overhead.
Clear & Sample
Load sample data to test encoding or clear both input and output instantly.
Component vs Full Encoding
Encodes using encodeURIComponent() for most complete coverage, ensuring every special character is safely encoded.
100% Client-Side
All encoding happens in your browser. Your data never leaves your device — no uploads, no servers, no privacy concerns.
Why Use Our URL Encoder Tool
The fastest, most private way to percent-encode URLs online. No sign-up, no limits, no data leaving your browser.
100% Free
No hidden fees, no premium plans, no usage limits. Encode as much data as you need, as often as you want.
Privacy First
Your data never leaves your browser. Everything is processed locally — no server uploads, no data logging.
Unicode Ready
Properly handles UTF-8, emojis, and international characters. No more garbled text when encoding non-ASCII content.
Developer-Friendly
Perfect for encoding query parameters, preparing form data, building API requests, and debugging URL encoding issues.
Key Highlights
- No sign-up or registration required
- Processes everything in your browser — zero server uploads
- Supports Unicode, emojis, and international characters
- Uses encodeURIComponent for complete encoding
- Works on any device — desktop, tablet, or mobile
- Instant real-time encoding as you type
Frequently asked questions
What is URL encoding?
URL encoding (also called percent-encoding) is a mechanism for encoding information in a Uniform Resource Identifier (URI). Special characters that have reserved meanings in URLs (like ?, &, =, #, /, space) are replaced with one or more character triplets consisting of a percent sign '%' followed by two hexadecimal digits representing the character's ASCII or UTF-8 byte value.
Is this URL encoder really free?
Yes, completely free. There are no hidden charges, no usage limits, and no premium features locked behind a paywall. Use it as much as you need, whenever you need it.
Is my data secure?
Absolutely. All encoding happens entirely in your browser using JavaScript. Your data is never sent to any server, stored, or logged. This means sensitive API keys, tokens, and personal information stay completely private.
What characters are encoded?
Characters that are not allowed in a URL are encoded, including: space (%20), exclamation mark (!), number sign (#), dollar sign ($), percent (%), ampersand (&), plus (+), comma (,), forward slash (/), colon (:), semicolon (;), equals (=), question mark (?), at sign (@), square brackets ([]), and all non-ASCII characters.
What's the difference between encodeURI and encodeURIComponent?
encodeURI() encodes a complete URI but preserves characters that are part of the URI syntax (like ?, &, =, #). encodeURIComponent() encodes everything including those reserved characters, making it suitable for encoding query parameter values. Our tool uses encodeURIComponent() for the most thorough encoding.
Can I encode URLs with Unicode and emojis?
Yes! The tool properly handles UTF-8 characters including emojis, accented letters, Chinese, Japanese, Arabic, and any Unicode characters. They are encoded as multi-byte percent-encoded sequences.
Why do spaces become %20 instead of +?
In URL encoding, spaces can be encoded as either %20 or + depending on the context. encodeURIComponent() uses %20, which is the modern standard for URL encoding. The + sign is an older convention from application/x-www-form-urlencoded form data.
Do I need to install anything?
No installation required. The URL encoder works entirely in your web browser. Just open the page and start encoding. No downloads, no plugins, no setup.
Can I use this on my phone?
Yes, the tool is fully responsive and works on all devices — desktops, tablets, and smartphones. The interface adapts to your screen size for comfortable use anywhere.