Question 1

What is URL encoding?

Accepted Answer

URL encoding (percent-encoding) replaces unsafe characters with a % followed by two hex digits. For example, a space becomes %20 and an ampersand becomes %26. This ensures special characters don't break URL parsing.

Question 2

Which characters need to be URL-encoded?

Accepted Answer

Characters that have special meaning in URLs must be encoded: spaces, &, =, ?, #, /, @, and non-ASCII characters. Letters, digits, and - _ . ~ are safe and don't need encoding.

Question 3

How do I encode a URL parameter?

Accepted Answer

Paste the parameter value (not the entire URL) and click Encode. For example, if your search query is 'hello world & more', encoding produces 'hello%20world%20%26%20more', which is safe to use in a URL query string.

Question 4

What's the difference between encodeURI and encodeURIComponent?

Accepted Answer

encodeURI encodes a full URL but preserves URL-structural characters like :, /, ?, #, &. encodeURIComponent encodes everything except letters, digits, and - _ . ~ — use it for individual parameter values.

ترميز URL

Input

Output

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ترميز Base64

منسّق JSON

فك JWT

مدقق JSON

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