URL Encoder / Decoder
Encode special characters in URLs or decode percent-encoded URLs back to readable text.
Why Encode or Decode URLs?
Web addresses require strict formatting rules. Translate unsafe characters seamlessly into percent-encoded equivalents to avoid broken links, rendering errors, and API failures.
Link Safety
URLs can only contain certain ASCII characters. Spaces, ampersands, and symbols must be replaced with safe percent encodings to create valid links.
Readability
Decode percent-encoded sequences like %20 or %40 back to readable text instantly. Helpful for debugging or sharing URLs.
API Routing
Send complex query parameters through web addresses smoothly by encoding variable values for REST APIs and webhooks.
How to Use the URL Encoder / Decoder
- Step 1: Paste your URL or text string into the input field above.
- Step 2: Select your mode — Encode, Decode, or encodeComponent.
- Step 3: The output updates in real-time. Click Copy or Swap to continue working.
- Privacy First: All encoding and decoding runs entirely in your browser — your data never leaves your device.
Frequently Asked Questions
What does URL Encoding actually do?
URL Encoding takes characters that are not allowed in URLs (like spaces, tabs, ampersands, and quotes) and translates them into an internet-safe format. This is commonly known as Percent-Encoding because it uses percentage signs followed by hex digits (e.g., a space becomes %20).
Why does decoding fail sometimes?
If you attempt to decode a string that doesn't contain valid percent-encoded sequences or UTF-8 structures, browsers throw a Malformed URI error. Our tool handles these errors gracefully and shows an alert instead of breaking.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL but preserves structural characters like colons, slashes, and question marks. encodeURIComponent encodes every special character including those structural ones, making it ideal for encoding individual query parameter values within a larger URL.
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