Launching today
Gridpark — Make Excel playgrounds
The spreadsheet you can draw graffiti on
4 followers
The spreadsheet you can draw graffiti on
4 followers
Gridpark is a free, open-source desktop spreadsheet that reads and writes realxlsx files, reasonably compatible with Excel. Powered by HyperFormula's 400+ formula functions. A full styling toolbar covers fonts, colors, borders, number formats, and cell merge. The twist: you can draw directly on your spreadsheet. Pen, highlighter, spray can, eraser, annotate your data like it's a wall. Dark/light themes, Japanese + English UI, sort, filter, freeze rows, undo/redo, autosave.
Hey Product Hunt 👋
I built Gridpark because I kept wondering: why does working with spreadsheets feel so joyless?
Excel is powerful, but it's never fun. So I started experimenting what if a spreadsheet felt more like a sketchbook? What if you could draw on your data, not just fill cells?
That's Gridpark. It reads and writes real .xlsx files, so nothing you make is locked in. HyperFormula handles 400+ Excel-compatible formulas under the hood. And yes, there's a spray can tool.
A few things I'm proud of:
- Draw tab: pen, highlighter, spray, eraser, layered on top of the grid
- Full .xlsx compatibility: open it in Excel after, it just works
- Japanese + English UI: I'm Japanese, so this mattered to me personally
It's experimental. Some edges are rough. But I wanted to ship something real and see what resonates.
Would love to know: what would make a spreadsheet actually fun for you? Drop it below I'm reading everything.