What is the difference between the two modes?

Component mode escapes nearly every special character, including / and &; full-URL mode leaves structural URL characters like :, /, ? and # untouched.

Why does a space become %20?

%20 is the percent-encoded representation of a space character, which cannot appear unescaped in a URL.

Does this handle non-English characters?

Yes — non-ASCII characters are encoded as their UTF-8 byte sequence, each byte represented as %XX.

Is my text uploaded anywhere?

No — encoding happens entirely in your browser.

Should I use component mode for an entire URL?

No — that would also encode the :// and / characters, breaking the URL; use full-URL mode instead for a complete link.

Can I encode an email address for a mailto link?

Yes — component mode is a good choice for encoding the subject or body of a mailto: link.

Encoding Tools

URL Encoder

Paste text or a URL and percent-encode it so it can be safely embedded in a query string or link.

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Runs in Your Browser
Instant Results
100% Private

Your Text

Mode

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What Is URL Encoding?

URL encoding (percent-encoding) converts characters that aren't safe inside a URL — spaces, ampersands, question marks and non-ASCII characters — into a %XX representation, so the resulting string can be safely used as a URL or query parameter.

This tool offers two modes: component encoding, which escapes everything that would break a single query parameter, and full-URL encoding, which leaves structural characters like : / ? and # untouched so it can safely encode an entire URL rather than just one piece of it.

Who Uses This Tool?

For Business

Encode a search term or tracking value before adding it to a URL.

For Personal Use

Build a mailto: or share link with a properly encoded message.

For Students

Learn how percent-encoding works for a web development course.

For Offices

Encode a value being passed as a query parameter in an internal tool.

Why Use This Tool

Key Features

Two Encoding Modes

Choose component encoding or full-URL encoding depending on what you're building.

Instant Encoding

Output updates immediately as you type.

100% Private

Your text is never uploaded or stored.

One-Click Copy

Copy the encoded result straight to your clipboard.

The Payoff

Benefits

Avoid Broken Links

Properly encoded query parameters prevent a URL from breaking on special characters.

Two Modes for Two Jobs

Encode a single value or a whole URL without switching tools.

No Software Needed

Encode directly in the browser — no command line required.

Step by Step

How to Use URL Encoder

Type or Paste Text

Add the text or URL you want to encode.

Choose a Mode

Pick component encoding or full-URL encoding.

Copy the Encoded Result

Use the Copy button to grab the encoded string.

Specifications

Technical Details

Detail	Value
Input	Plain text or full URLs
Processing	No practical limit — handled entirely by your browser
Output	Standard percent-encoding using the browser's native encodeURIComponent/encodeURI

You Can Verify This

Privacy & Security

What actually happens to your file when you use this tool.

100% Client-Side

This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.

No Upload, Ever

There is no file upload and no server processing step — your data never leaves your device.

Works Offline

Once this page has loaded, the tool keeps working even without an internet connection.

Nothing Stored

Nothing you enter is saved on our servers — refreshing the page clears everything.

No Tracking of Your Input

We have no way to see what you type, generate or convert with this tool.

Get Better Results

Tips

Use Component Mode for Query Values

Component mode is almost always right when encoding a single parameter value.

Use Full-URL Mode for Whole Links

Full-URL mode keeps :, /, ? and # intact so you don't break the URL's structure.

Frequently Asked Questions