Rasterbator turns a photo into a giant dotted poster you print across many sheets. Bitgrain gives you full control of the halftone itself, and exports one high resolution file.
Rasterbator is a clever, long running tool for one thing: making wall sized dot posters from ordinary sheets of paper. People look for an alternative when they care more about how the halftone looks than about tiling it, or when they want to print the poster in one piece at a print shop.
| Capability | Bitgrain | Rasterbator |
|---|---|---|
| Where it runs | In the browser, processed on your device | In the browser |
| Main focus | Halftone and other print effects, plus layout | Large posters printed across many sheets |
| Halftone control | Line count, angle, dot shape, mono, colour and CMYK | The basics for a bold dot poster |
| Splitting across pages | No, one file at the size you choose | Yes, that is its core feature |
| Vector output | SVG with every dot as a vector, on Pro | Multi page PDF for printing |
| Other effects | Dither, riso, ASCII, grain and more | Halftone style rasters |
If you want to cover a wall using a home printer and a pile of A4 or letter sheets, Rasterbator is built for exactly that, and Bitgrain does not split posters across pages. Use Bitgrain when the look of the halftone matters, or when you will print the file in one piece at a print shop.
No. Bitgrain exports one file. Most print shops can print it large in one piece, or you can split it with your printer's poster setting.
Yes. On Pro, export the halftone as SVG so every dot is a vector and the poster stays sharp at any size.
Yes. Every halftone setting is on the free tier. Free exports carry a small watermark and stop at 1080 pixels. Pro removes it and adds full resolution.