URL Encoder

Percent-encode text or a URL online for free — instant, live, entirely inside your browser.

Overview

What is a URL encoder?

A URL encoder, also called a percent-encoder, converts unsafe or reserved characters — spaces, symbols, and non-ASCII text — into a percent sign followed by their hex byte value, keeping a URL valid across every browser and server.

It's essential whenever dynamic data, like a search query or redirect target, gets inserted into a URL manually, so that characters like & or # don't break the URL's structure.

Guide

How to use it

Three steps, no learning curve — paste, encode, and copy the result.

Step 01

Paste your text or URL

Enter a query string, parameter value, or full URL with special characters.

Step 02

Encode instantly

Reserved and unsafe characters are percent-encoded live as you type.

Step 03

Copy or download

Grab the encoded string instantly, or download it as a .txt file.

Tips

Best practices to keep in mind

A few things worth knowing about URL encoding before you use it.

URL encoding replaces spaces, symbols, and non-ASCII characters with a percent sign followed by their hex code, so a URL stays valid across every browser, server, and network device.
Always encode individual query parameter values before appending them to a URL — an unencoded '&' or '=' inside a value will be misread as a separator between parameters instead of literal data.
This encoder targets query string and parameter values (encodeURIComponent behavior), which also encodes '/', ':' and '?' — don't run a full URL through it if you need those structural characters preserved.
Non-ASCII characters like accented letters or emoji in a URL must be percent-encoded as UTF-8 bytes — browsers handle this automatically for links you click, but manually built URLs need it done explicitly.

Comparison

SEOJuicer vs. other URL encoders

The same result, minus the uploads, the signup wall, and the paywall.

SEOJuicer

Runs entirely in your browser

Free, no signup required

Live encoding as you type

Handles Unicode characters

Unlimited input size

Other tools

Uploads your data to a server

Often requires an account

Breaks on Unicode characters

Slower, page-reload workflow

Capped or paywalled

FAQs

Frequently asked questions

Have questions about URL encoding text? Here are the most common ones our users ask before getting started.

Is this URL encoder free to use?

Yes, the URL encoder is completely free with no signup, no usage limits, and no watermarks on the output. It runs entirely in your browser, so there are no server costs passed on to you and no account is ever required to encode a string.

Does my text get uploaded to a server?

No. All encoding happens locally in your browser using JavaScript's built-in encodeURIComponent function — your text never leaves your device or gets transmitted anywhere. This makes the tool safe to use with private parameters or tokens.

What does URL encoding actually do?

URL encoding, also called percent-encoding, replaces characters that aren't safe inside a URL — spaces, symbols, and non-ASCII characters — with a '%' followed by their hexadecimal byte value. This keeps a URL valid and unambiguous across every browser and server.

When do I need to URL encode a value?

Any time you build a URL manually and insert dynamic data into it — a search query, a redirect target, or a parameter value — that data needs encoding first. Otherwise characters like spaces, '&', or '#' can break the URL structure or get interpreted incorrectly by the server.

Does this tool support non-English characters?

Yes. The encoder correctly percent-encodes full Unicode text, including accented letters, symbols, and emoji, by first converting the text to UTF-8 bytes — matching exactly how a browser encodes non-ASCII characters typed into an address bar.

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