Decode Query String
Long query strings are hard to read, especially when values contain encoded characters. This tool splits a query string into individual key-value pairs and decodes each one, making it easy to understand what parameters are being passed.
Open URL Encode & Decode →How to Decode Query String
- Open the URL Encode/Decode tool on ToolPrime
- Paste a URL or just the query string portion
- The tool parses it into individual decoded parameters
- Review each key-value pair in the clean output table
Common Use Cases
- Debug complex API request URLs with many parameters
- Analyze marketing campaign tracking URLs
- Inspect OAuth and SSO redirect URLs with encoded tokens
- Parse analytics parameters from long advertising URLs
Frequently Asked Questions
Does it handle duplicate keys?▾
Yes, duplicate keys are listed separately so you can see all values. This is common with array-style parameters.
Can I paste a full URL or just the query string?▾
Both work. If you paste a full URL, the tool extracts and decodes just the query string portion after the ? character.