Free URL Encoder & Decoder Online

Encode or decode URLs instantly using secure browser-based percent-encoding tools. Supports UTF-8, query parameters and full URL encoding. No data is uploaded or stored.

What is URL Encoding?

URL encoding, also called percent-encoding, converts unsafe characters into a format that can safely be transmitted over the internet. Spaces become %20 and special characters become hexadecimal values.

URL encoding is commonly used in query parameters, API requests, redirects and web forms.

Encode Component vs Full URL

Use component encoding for individual query parameters or user input values. Use full URL encoding when you want to preserve the overall URL structure.

What is Percent-Encoding?

Percent-encoding replaces reserved or unsafe URL characters with hexadecimal values prefixed by the percent symbol. For example: space becomes %20 and @ becomes %40.

Common Use Cases

• Encoding query parameters
• Building API requests
• Creating redirect URLs
• Handling special characters safely
• Encoding user-generated content

Browser-Based Privacy

All URL encoding and decoding happens directly in your browser. No URLs or data are transmitted to servers.

Related Tools

Base64 Encoder, HTML Entities, JWT Decoder, JSON Validator

Frequently Asked Questions

What is URL encoding?

URL encoding converts unsafe URL characters into percent-encoded values for safe transport.

What is percent-encoding?

Percent-encoding replaces reserved characters with hexadecimal values beginning with %.

Does this tool upload URLs?

No. All encoding and decoding happens locally in your browser.

When should I use encodeURIComponent?

Use component encoding for query parameters and user input values inside URLs.