URL Encoder - Online URL Encoding

Encodeanddecode URL online

Input

Output

Results will appear here...

💡 Difference

encodeURIComponent - Encode all special characters (used for query params)

encodeURI - Keep :, /, ?, & (used for full URL)

URL Encoder/Decoder Online - Free URL Encoding

Tan Phat Digital's free online URL Encoder/Decoder tool helps you encode and decode URLs accurately and safely. Supports two standard JavaScript methods: encodeURIComponent for query parameters and encodeURI for full URL. Perfectly handles Vietnamese with accents, special characters (&, =, ?, #, %, +, space), and Unicode. Clearly shows the difference between the two encoding methods. Copy results with one click. Completely offline processing in the browser, ensuring data security.

Outstanding features

Encode URL with encodeURIComponent - encodes all special characters, used for query params
Encode URL with encodeURI - preserve URL structure (:, /, ?, &), used for full URL
Decodes the URL to its original readable form, supporting both single and double encoding
Perfectly handles accented Vietnamese and other Unicode languages ​​
Handles all special characters: &, =, ?, #, %, +, space, quotes
Clearly shows the difference between encodeURI and encodeURIComponent
Copy results with one click, with visual feedback
Completely offline processing on the browser, data security

Why do we need to Encode/Decode URL?

URL (Uniform Resource Locator) according to RFC 3986 only allows certain ASCII characters: letters (a-z, A-Z), numbers (0-9), and some special characters (-, _, ., ~). All other characters such as spaces, Vietnamese, special characters (&, =, ?, #) must be percent-encoded (%XX) for safe URL transmission. Without encoding, the URL can be misinterpreted or cause errors. For example:

Benefits when used

  • Build safe query strings for API calls and form submissions
  • Sharing links containing Vietnamese or special characters without error
  • Debug URL issues - decode to read, encode to fix
  • Create URLs for email, SMS, social media with special characters
  • Handles redirect URLs that contain another URL inside
  • Encode data before saving to the database via URL
  • Decode URLs from logs, analytics to read
  • content Learn and understand how URL encoding works

Detailed instructions for using URL Encoder/Decoder

  1. 1Enter the URL or text to encode/decode in the Input
  2. 2box To ENCODE for query parameter values: Press
  3. 3- encodes ALL special characters
  4. 4To ENCODE the full URL: Press
  5. 5- keep :, /, ?, &, = (URL structure)
  6. 6To DECODE: Press
  7. 7- decode percent-encoding to the original readable form
  8. 8See the results in the Output box below
  9. 9Click the Copy icon to copy the results to clipboard
  10. 10Read the
  11. 11section to understand when to use which method

Cooperate immediately with Mavis Digital

We not only design websites, but also help businesses build strong digital brands. Providing comprehensive website design services from design to SEO optimization. Please contact Mavis Digital immediately to create breakthrough, effective and sustainable technology solutions for your business in Ho Chi Minh.

Tools Developer Tools related