URL Encoder / Decoder

Encode and decode URLs or strings — percent encoding, component encoding.

Instant URL encoding and decoding in your browser.

Plain text / URL

Encoded output

Output will appear here…

Encode component: replaces everything except A–Z a–z 0–9 - _ . ! ~ * ' ( )

Encode URL: replaces everything except valid URL characters — keeps :/?#[]@!$&'()*+,;=

How to use URL Encoder / Decoder

1
Choose the mode: "Encode component", "Encode URL", or "Decode".
2
Paste or type your text or URL in the input field.
3
The encoded or decoded result appears automatically on the right.
4
Click "Copy" to copy the result to your clipboard.

Practical guide: URL Encoder / Decoder

Why use this tool?

Developers need fast tools to format, encode, test or prepare data without opening an IDE for a simple task. These utilities cover the most common web and API development cases.

Privacy and limits

Technical data stays local. JSON snippets, API payloads and test content do not leave your browser.

URL Encoder / Decoder is designed to be free, fast and available without creating an account. It suits freelancers, students, marketing teams, developers and small businesses that need to handle a task efficiently.

Best practices

Never paste real API keys.
Validate the result in your own environment.
Use anonymized data.

Related searches: url encoder, url decoder, url encode online, percent encoding, urlencode online.

Frequently asked questions

What is the difference between "Encode component" and "Encode URL"?⌄

"Encode component" (encodeURIComponent) encodes everything except unreserved characters A–Z a–z 0–9 - _ . ! ~ * ' ( ). Use it for query parameter values. "Encode URL" (encodeURI) preserves valid URL characters like : / ? # [ ] @ etc.

How do I decode an encoded URL?⌄

Select the "Decode" mode and paste the encoded URL in the input field. The tool automatically decodes %XX sequences and + back to spaces.

Is any data sent to a server?⌄

No. Encoding and decoding happen entirely in your browser using native JavaScript functions encodeURIComponent, encodeURI, and decodeURIComponent. No data is transmitted.

Can I encode URLs with accented or Unicode characters?⌄

Yes. Unicode characters (accents, Arabic, Chinese, etc.) are correctly encoded as UTF-8 %XX sequences, compliant with RFC 3986.