We do not store your data. All processing happens in your browser.

Static + Browser-Only

Mask URL Query Parameters Online

Paste a full URL or raw query string and mask sensitive parameter values in your browser before sharing it with AI tools, tickets, chats, or documentation.

All processing happens locally in your browser. No server processing required.

Input

Raw URL or query string

Tip: paste text or drag and drop a file here.

Paste or drag and drop a file, then run the tool.

Output

Masked URL query

Masked payload will appear here

Use Cases

Why use a URL query masking tool?

Use this tool when links, callback URLs, or query-heavy request examples need to be shared without exposing raw parameter values first.

  • Mask sensitive query parameters before sharing links externally
  • Redact emails, phone numbers, tokens, IDs, and custom query keys
  • Keep masking local to the browser instead of sending URLs to a backend
  • Useful for support, debugging, vendor review, and AI prompt preparation

Masking Logic

How to mask sensitive values in query strings

Mask Payload checks common sensitive parameter names such as email, phone, token, or customerId, then applies pattern-based masking for values embedded in raw URLs and query strings.

  • Query-aware masking for named parameters in URLs
  • Pattern-based masking for email and phone values inside links
  • Readable output with copy/download options for clean handoff

Privacy Detail

Does this URL masking tool upload data?

This tool runs as a static browser page. It processes URLs and query strings in client-side JavaScript in the current tab. No form submission, fetch request, XMLHttpRequest, or masking API call is used during the masking flow.

  • No form submission is used for the masking flow.
  • No fetch, XMLHttpRequest, or API call runs during masking.
  • The page uses local JavaScript parsing and regular expressions in the current tab.
  • The URL is only written back to the output field unless you copy or download it yourself.
  • The masking flow does not store the payload in browser local storage.

FAQ

Who should use a query sanitizer?

Does this tool upload URLs anywhere?

No. The masking runs entirely in the browser on the current page.

Can I add custom masking fields?

Yes. Add custom field names such as eventId, renewalDate, or vendorRef and mask again.

Who is this tool for?

Mask Payload is for engineers, support teams, analysts, and anyone who needs to share URLs more safely.

Why query string masking matters before sharing URLs

Links are often copied into tickets, docs, AI prompts, and support threads without much review. Query parameters can still contain customer emails, phone numbers, tokens, IDs, or internal references that should not travel in raw form.

A browser-based URL query masker helps keep links readable while reducing the chance of exposing sensitive parameter values in collaboration workflows.

Examples

Example input and output

These short examples show the kind of input this page is built for and the kind of cleaned result you can expect before sharing data externally.

Example Input Sample data before masking or extraction 
https://api.example.com/search?email=john.doe@example.com&token=sk-prod-demo-token
Example Output Sanitized or extracted result 
https://api.example.com/search?email=****&token=****

Tool Directory

Browse masking tools by category

Find related browser-only masking tools for structured payloads, requests, tokens, config files, logs, infrastructure secrets, web payloads, security review, and practical guides.