URL Encoder/Decoder
Encode or decode URL components and query strings.
Encode special characters in URLs or decode percent-encoded URLs back to readable text. Essential for web developers working with query strings, API parameters, and form data.
What This Tool Does
This tool encodes special characters into URL-safe format and decodes percent-encoded strings back to readable text.
Why Use This Tool
It helps prevent broken links and malformed query strings when passing parameters between web pages and APIs.
How to Use
- Paste your text or encoded URL.
- Choose Encode or Decode.
- See the result instantly.
Component vs Full URL
Encoding rules depend on what part of a URL you are processing. If you are encoding a query value or path fragment, component encoding is the safer choice because reserved characters are escaped aggressively. Full-URL encoding keeps structural characters such as colons and slashes intact, which is better when the entire link already has valid separators. Choosing the right mode prevents malformed redirects and broken API requests caused by over- or under-encoding.
Common Encoding Mistakes
A frequent issue is decoding data that was never encoded, which can throw errors or alter literal percent signs in user input. Another is encoding the same value twice, resulting in unreadable parameters on the server side. To avoid this, test with a known sample string and confirm one round of encode and decode returns the original text. Document your application’s encoding expectations so frontend and backend behavior stays aligned across environments.