Most sites have a handful of pages that once brought steady search traffic and are now slipping, and a few that sit just below the top results with thousands of impressions. Updating those pages is usually faster and cheaper than writing new ones, but finding them in a long Search Console export takes time.
This tool reads the Pages report you export from Google Search Console. A Compare export, with two date ranges in one file, works best; you can also upload two separate exports. It flags three kinds of opportunity. Decaying pages lost at least the share of clicks you set compared with the earlier period. Quick wins have an average position between 8 and 20 and enough impressions to matter. Low CTR pages get less than half the click-through rate of your own pages at a similar position, so the comparison uses your site, not an industry average.
Results are sorted by a rough opportunity score and can be filtered and downloaded as CSV. The file never leaves your browser. Positions in Search Console are averages, and a drop can come from seasonality or a change in search features, so check each page before rewriting it.