encoding tool

URL Decoder

Decode percent-encoded strings back into readable text when browser debugging or query inspection needs a quick check.

Important Use Notice

Browser-side developer helper only. Verify output against a real environment, and do not paste secrets, regulated personal data, private keys, tokens, or confidential client material unless you have permission and an approved workflow.

Behavior

This page reverses URL encoding so reserved characters and spaces become readable again. It is for inspecting copied query strings or encoded fragments without leaving the browser.

Reading percent-encoded query values more comfortably.
Checking whether a URL parameter was encoded as expected.

Run Tool

Provide exact input, inspect deterministic output, and validate with a real endpoint or runtime.

Output

Enter values to see the result.

Input / Output

“hello%20world” becomes “hello world”.
A hard-to-read query fragment becomes easier to debug after one decode step.

Edge Cases

Validate syntax first, then evaluate semantic correctness in the target system.
Trying to decode text that was not encoded in the first place.
Assuming every copied URL fragment is safe to decode blindly.

Next Tool

Next Debug

URL Encoder

Encode text for safer placement in URLs and query strings when reserved characters need escaping.

Next Debug

Query String Parser

Split a query string into decoded key-value rows when a copied URL is hard to inspect.

Next Debug

Query String Builder

Build a cleaner query string from one key-value pair per line when manual URL assembly gets messy.

System note: verify transformed payloads with a real endpoint before production use.