Substack shows you one post at a time. Export the post-stats CSV, drop it here, and every post lines up on a trend — sends, opens, clicks and new subscribers — with type and post as clickable breakdowns, all in your browser.
Each row is one post — sends, opens, clicks and the subs it earned. One drop stacks them on a timeline so the arc of your newsletter, not just the latest issue, is finally visible.
In Substack: Dashboard → Stats → export the post-level stats CSV (one row per post).
Sends, Opens and Clicks read as counts, Open Rate and Click Rate as percentages; Date drives the trend and Type/Post become breakdowns.
Opens and clicks over time, open and click rate per post, and which posts drove new free and paid subscribers.
The view Substack hides one screen at a time: your whole post history on one chart.
Opens and clicks plotted over every post show whether your audience is warming up or drifting.
Rate columns trend per post, so a low-reach issue that converted hard stops looking like a flop.
New free and paid subscribers per post reveal which topics actually convert readers into subs.
Your stats are parsed in the browser — your post performance never goes to another third party.