I got fed up with outdated paint conversion charts so I built my own (30 brands, ~13,600 paints, free)
Hello
A while back I moved a chunk of my collection from Citadel to Vallejo and lost an entire evening cross-referencing conversion charts that were either ancient Google Sheets or blurry JPEGs where half the ranges don't even exist anymore. Classic.
So I ended up building my own thing: https://www.paint-vault.com/conversions
It covers around 13,600 paints from 30 ranges (Citadel, Vallejo, Army Painter, AK, Scale75, Reaper, Two Thin Coats, GSW, Mr Hobby...). You pick two brands and get the full chart, or you look up a single paint and see its closest match in every other range. The matching isn't done by eye — it's computed from the actual colour values (ΔE2000 for the colour nerds), and the score is shown next to each match so you can tell "basically identical" apart from "close enough if you squint".
Fair warning: it matches colour, not behaviour. A perfect colour match can still cover or flow differently — you all know how it goes with washes and contrast paints.
All of it is free, no account needed. It's my site — there's a free inventory feature on there too, but you can ignore it completely, the charts don't touch it.
If your favourite brand is missing or you spot a match that looks off, say so. I'm the only guy behind this and I fix things fast.
Thanks ;)