Performance

Web Performance Budget Planner

Enter kilobyte estimates for images, fonts, CSS, JavaScript and other assets. ToolUpa totals them against your budget and shows a checklist for responsive images, caching, compression, render-blocking files and unused scripts. It never invents Lighthouse or Core Web Vitals scores.

How to use it

  1. Type estimates in KB. These are your numbers, not lab measurements.
  2. Optionally paste metric lines from a PageSpeed Insights report you already ran.
  3. Export the plan. PageSpeed API integration is not enabled (no server-side key store in this static host).

Only values next to recognized labels are listed. Missing labels stay missing.

Plan

Enter estimates in KB to plan a budget.

Privacy

Estimates and pastes stay in the browser. No PageSpeed API key is used. Optional API integration would require a server-side secret, which this static site does not store.

Related tools

    FAQ

    Is the total a Lighthouse score?

    No. It is a sum of the KB values you typed.

    Why is there no live PageSpeed button?

    The PageSpeed Insights API needs a server-held key. Putting a key in the browser would expose it. Paste a report you already ran.

    What if my paste has no metric names?

    The tool says so and does not invent numbers.