URL Encoder & Decoder

Percent-encode or decode URLs and query strings instantly, right in your browser, with component or full-URL modes. No signup, no backend, no data ever leaves your device.

🔒 100% Private ⚡ Instant Results 🆓 Always Free

✅ Reviewed by Rashid Amin, Founder of NexaTools 🕒 Last Updated: July 2026

Text / URL Input

🔗 Client-Side Only

Text or URL

Encoding Mode

Result

Free Online URL Encoder & Decoder

The NexaTools URL Encoder converts text and links into a safe, percent-encoded format, or decodes an encoded URL back into readable text, entirely inside your browser. It's built for developers handling query parameters, form submissions, or links containing spaces and special characters.

Choose between Component mode, which escapes every reserved character including & and = for safe use inside a single query parameter, or Full URL mode, which leaves the URL structure intact while encoding only unsafe characters like spaces. Nothing you paste is uploaded to a server.

How to Encode or Decode a URL

Paste your text or URL

Add the link or string you want to convert.

Pick a mode

Component for query values, Full URL for whole links.

Encode or decode

Click the matching button and copy your result.

Why Use This URL Tool

Runs locally. URLs and query strings never leave your browser.

Instant results. No server round trip, no delay.

Two modes. Component or full-URL encoding, whichever you need.

Completely free. No login, no limits.

Who Should Use This Tool

This URL encoder/decoder is built for anyone who needs to safely prepare or read links and query strings. That includes:

Developers building query strings or debugging links that contain spaces or special characters.

Marketers and SEOs checking or building UTM-tagged URLs and campaign links.

Students and hobbyists learning how percent-encoding works in URLs.

Anyone without dev tools installed who needs to encode or decode a link without opening a console.

Common Use Cases

Building safe query parameters. Encode a value in Component mode before adding it to a query string.

Reading encoded links. Decode a percent-encoded URL to see the original readable text.

Preparing form submissions. Escape user input safely before sending it as part of a URL.

Learning encoding rules. Compare Component and Full URL modes to see which characters each one encodes.

Common Problems & Troubleshooting

Decoding gives an error. This usually means the text has a malformed percent sequence, like a stray % not followed by two hex digits. Check the string and try again.

Copy button doesn't seem to work. Some browsers block clipboard access until you interact with the page first; click anywhere on the page, then try Copy Result again.

My whole URL got encoded, including the slashes. Switch to Full URL mode instead of Component mode Component mode is meant for a single query value, not a whole link.

Nothing happens when I click Encode or Decode. Make sure you've entered text in the input box first.

Frequently Asked Questions

What's the difference between the two encoding modes?

Component mode (encodeURIComponent) escapes every special character, ideal for a single query parameter value. Full URL mode (encodeURI) leaves URL structure characters like /, ?, and & untouched, ideal for encoding an entire link.

Is my URL sent to a server when I encode it?

No. Encoding and decoding both happen locally in your browser using standard JavaScript functions.

Why do I get an error when decoding?

This usually means the text contains a malformed percent sequence, like a stray % not followed by two hex digits. Double-check the string and try again.

Can I use this for form data or API query strings?

Yes, this is exactly what URL component encoding is designed for, safely escaping values before adding them to a query string.

Encode or Decode a URL in Seconds

Paste your link or text, copy the safe, encoded result instantly.