Slate Windows · free · no account

Charts and slides, made once.

A chart builder and a slide-deck builder that share one renderer, so a chart looks the same whether it stands alone or sits inside a panel. Type your numbers in, or paste notes and let an AI assistant turn them into a slide. Nothing ever leaves your computer.

12
Chart types, each checked against your data
1x/2x
Export scale. The preview is not a mockup
3
Export formats: PNG, PDF, and PPTX
0
API keys. AI help is a copy and paste, not a subscription
Graph Twelve ways to draw the same numbers

The right chart, not just any chart.

Type in a few rows, or paste a table straight from a spreadsheet, and Slate checks all twelve chart types against your actual data. A pie with two slices gets marked poor. A line chart with no real order to its categories gets marked poor too. You can still pick anything, but you always know which ones are lying to your audience.

Why it exists

Most chart tools will happily draw a pie chart with two slices or a bar chart no one can read the labels on. Nothing stops you until the slide is already in front of a room.

12 of 12 chart types checked, every time you type a number

Rough math, not a measurement: trying each chart type by hand in a general slide tool, one at a time, to see which one actually reads clearly, is 15 to 20 minutes of rebuilding the same chart over and over. Slate checks all twelve the moment the data changes and shows a plain fit reading next to each one.

1 Slate's Graph screen with an empty data table and a donut chart showing zero, before any numbers are entered
Type or paste your numbers. A table, a CSV, or a straight paste from a spreadsheet.
2 Slate's Graph screen showing a donut chart built from the entered data, with a legibility check that has passed
A chart that passes its own check. Every label colour is picked for real contrast, not guessed.
Every label colour is picked by measured contrast, not assumed
Donut, bar, line, radial gauge, big number, and more, twelve in all
Exports at 1x or 2x, as a PNG or a PDF, transparent background included
Download for Windows Source Packaging the installer. Check back soon.
Deck Slides built from panels

A status update that stays legible.

Give each panel a chart, a few highlights, and a note, and Slate lays the whole slide out at a true, fixed resolution. Type never shrinks past a readable floor. When there is genuinely too much to fit, it drops the least important bullet and says so, instead of quietly shrinking everything until no one in the room can read it.

Why it exists

A weekly status deck built by hand means opening last week’s file, hunting for what changed, and manually shrinking text until four panels of updates fit on one slide.

18px the type floor. It drops a bullet before it drops below this

Rough math, not a measurement: building one panel by hand, sizing the chart, wrapping the bullets, and lining up the footer against its neighbours, is several minutes of nudging per panel. On a four-panel slide that is the better part of an hour, every single week. Slate lays out all four from the same data in one pass.

1 Slate's start screen with two cards, Graph and Deck, and a note that everything runs locally with nothing uploaded
Pick Deck. Or open a saved project and pick up where you left off.
2 Slate's Deck screen showing a four-panel weekly review slide, each panel with a donut chart, highlights and a status, plus an inspector panel on the right
A full slide, from real data. Every panel shares the same geometry, so nothing drifts.
Paste notes, get a copy-prompt for any AI assistant, paste the reply back
No API key, no network call. The prompt round-trips through you
Exports the whole deck as PNG, PDF, or a pixel-exact PPTX
Download for Windows Source Packaging the installer. Check back soon.
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