Turn a URL’s query string into readable JSON — and build one back — on your device, nothing sent anywhere.
URL or query string in
JSON out
Parses a URL or query string into JSON (repeated keys become arrays) and builds one back, URL-encoding values. Runs in your browser.
Runs in your browser. Files are never uploaded — you can go offline after the page loads.
Drop files, pick options, download. Whole folders at once, no signup, no daily limit.
The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.
Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.
Paste a full URL or just its query string and get a JSON object back, with values URL-decoded and any repeated parameter collected into an array. It is the quickest way to read a messy tracking URL, inspect an API call, or turn a form submission into structured data.
It runs both ways — JSON to query string — using your browser's built-in URL engine, so nothing is sent anywhere. To break a whole URL into every part, use the URL parser.
Keys that appear more than once (like tag=a&tag=b) are collected into a JSON array, and arrays convert back into repeated parameters.
No — it uses your browser’s built-in URL engine; nothing leaves your device.
Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.
InfyTool is built by the same team as these free libraries.