Query Params Manager

About

Query Params Manager gives you full control over URL query parameters without touching the address bar.
Click the extension icon on any page to instantly see every query parameter parsed into clean, editable key-value pairs. Edit values inline, remove parameters you don't need, or add new ones — then apply your changes with a single click to reload the page with the updated URL.

ENCODE & DECODE VALUES IN ONE CLICK
Query parameters often contain encoded data that's hard to read. Each parameter value comes with built-in encode/decode buttons:
• URI Encode / URI Decode — handle percent-encoded strings like %20, %3A, %2F
• Base64 Encode / Base64 Decode — reveal the actual content behind Base64-encoded tokens and payloads
Edit the decoded value directly, re-encode it, and apply — no more copy-pasting between browser tabs and online decoder tools.

WHAT YOU CAN DO
• View all query parameters in a clean, organized list
• Edit parameter keys and values inline
• Add new parameters with the "Add to URL" button
• Remove individual parameters or clear all at once
• Encode and decode values (URI and Base64) without leaving the extension
• Copy any parameter value to clipboard with one click
• Preview the full updated URL before applying
• Apply changes and reload the page instantly

BUILT FOR DEVELOPERS
Whether you're debugging API calls, testing different query configurations, toggling feature flags, or inspecting redirect URLs with encoded parameters — this tool saves you from manually editing long URLs in the address bar.

PRIVACY FIRST
• No data collection — your URLs never leave your browser
• No background processes — runs only when you click the icon
• No analytics, no tracking, no remote servers
• Minimal permissions: only accesses the active tab when you interact with the extension
Works on any webpage with a URL. Lightweight, fast, and distraction-free.