What Is URL Encoding?
URL encoding (also known as percent-encoding) is a method of converting characters in a URL that are not safe for web transmission into a format that can be safely sent over the internet. Special characters, spaces, and non-ASCII characters are replaced with a percent sign followed by their hexadecimal ASCII code (e.g., a space becomes %20, and an ampersand becomes %26).
Codersly’s free URL Encoder and Decoder lets you encode plain text or special characters into URL-safe format, or decode a percent-encoded URL string back into human-readable text.
Why Is URL Encoding Necessary?
URLs can only contain certain characters from the ASCII character set. Spaces, special characters (like #, &, ?, =), and non-ASCII characters (like accented letters or Unicode text) must be encoded before being included in a URL. Without proper URL encoding, the browser or server may misinterpret the URL structure and produce incorrect results.
Common Use Cases for URL Encoding
- Query string parameters — encode values in URL query strings so special characters do not break the URL structure.
- API requests — encode parameter values when making HTTP GET requests to APIs.
- Form submissions — browsers automatically URL-encode form data before sending it in GET requests.
- Link generation — generate properly encoded links for sharing or embedding.
- Debugging URL issues — decode percent-encoded URLs to see what data they contain.
How to Use the Codersly URL Encoder/Decoder
- Open the tool: Visit the Codersly URL Encode Decode tool.
- Choose mode: Select encode or decode.
- Enter your string: Paste or type the URL or text string.
- Get the result: The encoded or decoded output is shown instantly.
Frequently Asked Questions (FAQ)
Is the URL encoder/decoder free?
Yes. Completely free with no sign-up required.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL and preserves characters that have special meaning in URLs (like /, ?, #). encodeURIComponent encodes a single URL component value (like a parameter value) and encodes those special URL characters too. This tool uses the encodeURIComponent approach for encoding parameter values.
Can I decode any percent-encoded URL?
Yes. Paste any percent-encoded URL or string and the decoder will convert it back to human-readable text.
Related Encoding Tools
Also try: Base64 Encode Decode and HTML Encode Decode.
Encode or Decode URLs Now
Encode or decode URL strings instantly with the free URL Encoder Decoder on Codersly. No account needed.