IconVault's NPM Trends compares download trends for up to 5 npm packages side by side, rendered as clean canvas charts with per-package totals. Pick the last month or last year, and the tool pulls daily download data from the official npm downloads API (api.npmjs.org) so you can see which library is growing, which is flat and which is fading.

Everything is computed and drawn fully in your browser: no account, no tracking pixel, no server storing your comparisons. It is free to use with no signup. The honest caveat: download counts measure installs, not quality. CI pipelines, mirrors and bots inflate numbers, so use trends as one signal alongside docs quality, maintenance activity and API fit.