Is this URL encoder free?

Yes. AZRS provides this URL encoder and decoder free with no signup required.

What is the difference between standard and component encoding?

Standard encoding keeps slashes unencoded (safe for full paths). Component encoding encodes every character except unreserved ones, like JavaScript encodeURIComponent.

When should I use plus (+) encoding?

Use plus encoding for HTML form data and application/x-www-form-urlencoded query strings where spaces become + instead of %20.

DEV TOOL

Free URL Encoder & Decoder

Percent-encode or decode URLs and query strings. Standard, URI component and form (+) modes. Text is sent to our server to be converted and is not stored.

URL Encoder & DecoderAZRS QuickFix

How to Use the URL Encoder

Encode or decode in three steps — free on azrscorp.com

Pick Encode or Decode

Choose whether you need percent-encoding or to reverse an encoded string.

Select encoding mode

Standard for paths, component for encodeURIComponent, form for query strings with + spaces.

Paste & convert

Paste your URL or text, click Convert Now, then copy the result.

What Is URL Encoding?

URL encoding (percent-encoding) replaces characters that are not allowed in URLs with % plus two hexadecimal digits. A space becomes %20 (or + in form data).

Developers use it for query parameters, redirect URLs, API requests, and anywhere special characters must survive HTTP transmission.

Quick examples

Input	Encoded
hello world	hello%20world
a=b&c=d	a%3Db%26c%3Dd
https://www.azrscorp.com/q	https%3A%2F%2Fazrscorp.com%2Fq

URL Encoder FAQ

Is URL encoding the same as encryption?

No. Encoding is reversible and provides no security. Anyone can decode a percent-encoded string instantly. Use encryption (AES, TLS) to protect secrets.

Which mode matches JavaScript encodeURIComponent?

Choose URI component when encoding. It encodes all characters except unreserved ASCII letters, digits, -._~, matching encodeURIComponent() in JavaScript.

When do I use form (+) encoding?

Use form encoding for application/x-www-form-urlencoded bodies and some HTML form submissions where spaces are represented as + instead of %20.

Is my data stored on azrscorp.com?

We do not permanently store your input. Logged-in users may optionally save recent conversions in private account history only.

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How percent-encoding works

A URL can only contain a limited set of characters. Any other character is written as a percent sign followed by two hexadecimal digits that give its byte value in UTF-8. A space becomes %20, an ampersand becomes %26, a slash becomes %2F and the letter e with an acute accent becomes %C3%A9 because it takes two bytes. Letters, digits and the four characters hyphen, underscore, period and tilde are never encoded.

Worked example

Suppose you want to send the search text: coffee & cake (50% off) as a query value. Encoded as a component it becomes coffee%20%26%20cake%20%2850%25%20off%29. If you left the ampersand raw, the receiving server would read it as the start of a new parameter and cut the value after the word coffee. Decoding reverses the steps and gives back the original text.

Common mistakes

Encoding a whole URL as a component also encodes the slashes and the colon after https, which breaks the address; encode only the values you insert. Encoding twice turns %20 into %2520. Form data uses a plus sign for a space, but a plus sign in a normal URL path means a literal plus, so choose the matching mode before you decode.