Concept artists do not run out of reference. They run out of a way to find the one image they are thinking of, three years and thirty thousand pictures later. Reference lives everywhere by then: an external drive from a project two studios ago, a Pinterest board that used to load, a Downloads folder nobody has opened since 2024, a folder named "refs 2" nested inside another folder called "refs old". Somewhere in there is the exact still you remember, the right rim light on the right kind of armour, and no filename is going to get you back to it.
PureRef still owns the wall
Say what PureRef is for and it is right, immediately: it is the board you keep open while you paint. PureRef's own site describes exactly that job, a window that stays above every other window on your screen so you can glance across at reference without alt-tabbing out of Photoshop or Procreate. You drag images in, group them, desaturate the ones you want to check for value rather than colour, and drop a note beside anything that needs one. Nothing about that workflow is broken, and nothing here argues you should replace it.
PureRef earns its place for a specific reason: it stays out of the way. It never asks you to tag, name or file anything before you can look at it. For the two hours you spend painting a single piece, that is exactly right.
So what is the archive job, if PureRef already has the wall?
The wall and the archive are two different jobs wearing the same word, reference. PureRef's board is the working surface for the piece in front of you today. It gets built fresh, or half fresh, from whatever you can find in time, then cleared out or buried under the next project. The archive is the opposite: everything you have ever saved, kept in one place long enough that it is still there, and still findable, when a later piece needs a very specific kind of thing you saved four projects ago.
Most artists already have both jobs. They just do not have a working archive. The wall is easy to build. The archive is the part that quietly turns into a Downloads folder and a dead Pinterest board, because nothing was ever asked to hold it together.
What do concept artists actually search on?
Not filenames. When you go looking for a reference image months later, you are almost never thinking in the words a camera or a screenshot tool gave it. You are thinking in the vocabulary of the job: the lighting (rim lit, overcast, practical), the material (brushed steel, worn leather, wet stone), the silhouette, the era, the mood. A folder tree has no way to hold one image under five of those at once. A tag can.
That is the real value of a library over a folder: not that it looks nicer, but that one picture can sit under every heading that describes it, at once, without you picking a single correct folder for it. In Muse, a saved image is tagged automatically as it comes in and stays a member of every collection you file it into, so the same reference shot can live under Lighting, Sci-fi Armour and a project-specific board without being copied three times just to appear in three places.
An item can belong to several collections at once, so a reference does not have to live in Lighting instead of Armour. It lives in both, and turns up in a search for either.
Finding the image you can only describe
The hardest search is the one where you cannot remember any of the words. You remember what it looked like: a certain kind of grey light, a texture, a shape. That is a real search problem, not a filing problem, and it has three honest layers.
The first is text actually written on the image: an infographic, a caption, a piece of concept art with callouts on it. The second is colour: pull up everything in your library that reads as that particular cold green, whatever it happens to be tagged. The third, and the one that matters most for reference nobody ever labelled, is meaning. Muse's optional Pro AI pack matches a description like "overcast industrial interior, cold light" against what is actually in the picture, not against any word anyone typed. That matching runs entirely on your own Mac.
Where do the files actually go?
Here is the part worth being straightforward about. Muse copies what you save into its own library folder, the same approach Eagle takes, and the reason either app can keep a consistent database of tags, colours and collections behind everything you file. It does not leave your images scattered wherever you first put them.
What that buys you is a library that is still one thing in five years, rather than an index pointing at files you have since renamed, moved or deleted from six different drives. It is not a one-way trip either: the library folder is real files you can open in Finder, and Export My Library writes any collection back out as ordinary folders whenever you want it to. Nothing is locked in. It is simply kept together while you are using it.
Do you need both?
Almost certainly. Build the archive over months, saving and tagging reference as you find it, the way you already fill a Pinterest board or a Downloads folder, except this time it stays searchable. It is the same habit product and UX designers rely on when collecting evidence before a redesign, gathering everything relevant before a single sketch gets made. Then when you sit down for a specific piece, pull the handful of images that piece actually needs into a fresh PureRef board and work from there, the same way you always have.
PureRef stays exactly what it is, a wall you build and clear per project. Muse is what stops the material behind it from turning into thirty thousand unlabelled files on a drive you are afraid to open.
Frequently asked
Is Muse meant to replace PureRef?
How does Muse tag reference images automatically?
Does Muse move my reference files into a new folder?
Can I search reference by lighting, material or mood rather than filename?
Should I use PureRef and Muse together?
Every reference you have ever saved, still findable
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