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Nobody arrives at this search because a reference manager failed them dramatically. The reasons are duller and more specific than that, and knowing which one is yours is most of the work — because the seven tools below answer different ones, and picking by star rating rather than by reason is how people end up with three apps and no library.

The reasons that actually send people looking, in rough order of how often they come up:

  • $35 is more than the job is worth to you. Perfectly reasonable if your collection is a few hundred images or you are a student. Free options exist and two of them are good.
  • You want one platform's app, not three platforms' app. refern runs on Windows, macOS and Linux, which is a strength for a studio and irrelevant if you have only ever owned Macs.
  • You do not want a library at all. Some people want a board that floats over the thing they are painting and nothing else. That is a different product category and it is cheap.
  • You want your boards to be files you can read. A canvas you spent a day composing is an asset. Where it is stored and in what format is a fair question to ask of every app here, including ours.
  • You already pay Adobe, or you already have Photos open. Free and installed beats good and separate more often than software people admit.

Written on 4 September 2026, with every price checked against the vendor's own page that day. Prices move; the links are there so you can check them again.

What you would be giving up

Worth saying before the list, because it is the part a page like this usually skips. refern is the most capable application in this category: an on-device tagger that suggests tags, reads text out of images and describes them; a search that finds pictures nobody labelled; a relationship graph; colour search; smart folders; linked copies; browser extensions for Chrome, Firefox and Safari; and importers from Eagle, PureRef and Allusion. Its own changelog puts v1.7.0 on 26 August 2026, adding PDF viewing. None of the seven alternatives below matches that feature set, and several do not try to.

So the question is not "what is better than refern". It is "what is enough for me, and what do I want back in exchange" — usually money, a platform, a simpler mental model, or a file format you can open without the app.

Eagle — $34.95 once, Windows and macOS

The other mature catalogue in this space. Folders, smart folders, tags, colour, format handling, a browser extension, and a thirty-day full-feature trial. Its support pages list the licence at $34.95, activated on two devices with lifetime updates; the home page shows v4.0.0 Build23 dated 1 April 2026, for Windows 10+ and macOS 10.15+.

Pick it if you want one application to hold everything and you are comfortable with the import model: Eagle's own documentation says it copies files to the library when importing rather than indexing the originals in place. That buys a self-contained library and costs you a second copy of your collection. The longer comparison is mostly about that one decision.

PureRef — pay what you want, three platforms

Not a library and never claimed to be. A .pur scene holds the images you put on it, and the window can sit above your art program: always on top, overlay mode, transparency to the mouse, notes, desaturation, alignment. Its download page offers a pay-what-you-want personal licence — personal use only, single user, hobbyist or educational, with $7 and $15 suggested — plus $49 once for up to three users in a studio, or $10 per seat monthly ($8 billed annually). Version 2.1.3, Windows 10+, macOS 10.14+ and Linux.

Pick it if the job is having references in your eyeline while your hands are busy. It is the best answer on this page to that job and one of the cheapest things in professional creative software. It will not help you find anything. Full comparison.

BeeRef — free and open source, three platforms

A canvas app under the GNU General Public License v3.0, with builds for Windows, Linux and macOS; the latest release listed is v0.3.3 from May 2024. Move, scale, rotate, crop and flip; mass-scale and mass-arrange a selection; text notes; an always-on-top mode with the title bar hidden. Its own site documents the file format: a .bee is a sqlite database with the images stored in an sqlar table, extractable with a sqlite3 command it prints for you.

Pick it if you want PureRef's job done for nothing, on any of three platforms, with a format whose escape hatch is published. It has no library, no search and no tags — the board is the whole product. Full comparison.

Kuadro — free, Windows with an OSX build

Not a canvas but a window manager for pictures: each image becomes its own borderless window that you place across monitors, snap against its neighbours and save as a layout. Kruel Games' page states it is free for any use including commercial use, with the single restriction that you cannot redistribute it as your own, and the newest listed version is 0.9.5. The Mac build is on Gumroad at no cost, and the developer's own listing there says the OSX version is officially unsupported, with 0.9.5 left up for anyone who wants to try it.

Pick it if you liked the sound of PureRef but want free, work mostly on Windows, or need something portable enough to run from a stick on a machine you do not administer. Check the Mac build against your own macOS version first. Full comparison.

Adobe Bridge — free, if you have an Adobe account

Adobe's own product page offers Bridge as a free download. It browses folders in place rather than importing them, reads a very wide range of formats including raw files and PDFs, writes ratings and keywords into the files themselves as XMP, and hands assets straight to the rest of Creative Cloud.

Pick it if you already live in Adobe's applications, or if format breadth matters more than anything else on this page — Bridge reads things no reference app here will ever open. Its metadata lives in the files, which is a genuinely strong answer to the portability question, and it is free. Full comparison.

Inboard — $19.99 on the Mac App Store, macOS only

A small, well-liked Mac app for collecting from the web: browser extensions, full-page screenshots, the page title and URL filed with the image. The App Store listing shows version 1.1.9, released 9 October 2025, whose notes cover compatibility with recent macOS releases, at $19.99.

Pick it if most of what you keep arrives by seeing it in a browser. That is the moment it is built around, and neither Coii Ref nor PureRef does anything for it. Full comparison.

Photos — included with macOS

Already installed, free, syncs across your devices if you want it to, and very good at photographs of your own life. It is on this list because a lot of people try to use it for reference and then wonder why it fights them: a Photos library is a managed container, and the point of it is that you never think about files.

Pick it if your reference collection is small, mostly your own photographs, and you value syncing to a phone over anything else. If you find yourself fighting the library format, that is the signal to move to a folder-based tool. Full comparison.

Coii Ref — $19 once, macOS 11 or later

Ours, and the same length of entry as the others. It indexes the folders of images and video already on your Mac — nothing copied, moved or renamed — reads dimensions, EXIF and colour, and gives you one line of search over all of it. Boards are .coii-canvas files: pretty-printed JSON in your own folders, which you can open in a text editor, diff in git and sync with whatever you already sync with. $19 once, three machines, thirty days with every feature, no card and no account.

/type:video ext:mov rating:>=4 has:notes
typevideoextmovrating>=4hasnotes
63 items
One string, four filters, images and clips in the same result — the search a folder of forty thousand files needs and a floating board cannot offer.

Pick it if you are leaving refern over price or platform focus and you want the same "your files stay your files" model in a smaller app — it is also the only tool here that reads a refern library, carrying ratings, tags, notes and canvases across by relative path. Do not pick it if you want the tagger, the meaning-based search, the graph, colour search, browser extensions or PDF: it has none of those, and refern has all of them. Full comparison.

~/Pictures/Reference
  • Portraits
  • Film stills
  • Fabric
  • Architecture
  • coii-thumbnailswritten by Coii Ref
  • coii-proxieswritten by Coii Ref
  • coii.dbwritten by Coii Ref
The index, the thumbnails and the proxies live inside the folder you point at — so backing that folder up backs up the library, and moving it moves everything.

All eight, on the rows that decide it

Price today Platforms Indexes folders in place Searches a collection Floats on top
refern $35 once, 3 devices Windows, macOS, Linux Yes Yes, including by meaning No
Eagle $34.95 once, 2 devices Windows, macOS 10.15+ No — copies on import Yes No
PureRef Pay what you want; $49 studio Windows, macOS 10.14+, Linux No No Yes
BeeRef Free, GPL v3 Windows, macOS, Linux No — embeds in the file No Yes
Kuadro Free Windows; OSX build unsupported No No Yes, per image
Adobe Bridge Free with an Adobe account Windows, macOS Yes Yes No
Inboard $19.99 macOS No Within its own library No
Coii Ref $19 once, 3 devices macOS 11+ Yes Yes, one literal query line No

What leaving actually costs, whichever way you go

The switching cost is rarely the price. It is the metadata — the ratings, tags and notes you added over years, which live in an application rather than in your files — and the boards, which are the work rather than the raw material.

Your images are the easy part. refern indexes folders rather than absorbing them, so the pictures themselves are already sitting where you put them and any app on this list can be pointed at the same directories tomorrow. That is true of Bridge, Coii Ref, PureRef, BeeRef and Kuadro without a single file moving. Eagle is the exception, because importing into Eagle means copies.

The metadata is where the work is. Only one tool here reads a refern library: Coii Ref's importer carries ratings, tags, notes and canvases across by matching relative paths, and neither moves nor rewrites your originals, so both apps keep working while you decide. Everywhere else, you are either re-tagging or accepting that the tags were a search aid rather than an asset. Bridge is a partial exception in the other direction — it writes ratings and keywords into the files as XMP, so anything you do there travels with the picture.

Do the reorganising after, not during. The importer matches by relative path, which means the one thing that breaks it is tidying up your folder tree in between. Index first, import second, reorganise third, and the whole thing is an hour of waiting rather than an afternoon of repair.

Keep the old library until you are sure. Nothing on this page requires you to delete anything, and running two applications over the same folders for a fortnight costs you disk space measured in thumbnails. That is the cheapest insurance available against discovering in week three that the feature you did not think you used was the one holding your process together.

How to choose in one minute

If the reason you are here is money, the order is BeeRef or Kuadro (free), then Bridge (free with an account you may already have), then Coii Ref at $19, then Inboard at $19.99, then Eagle at $34.95.

If it is the job, ask whether your problem is looking or finding. Looking is PureRef, BeeRef, Kuadro. Finding is Bridge, Eagle, Coii Ref — and refern, which is still the most capable of them.

If it is where your files live, three of these leave your folders exactly as they are: Bridge, Coii Ref and refern itself. Eagle copies on import and BeeRef embeds copies in its board files, both by design and both with real benefits.

And if what you actually want is refern with a smaller price and a shorter feature list on a Mac, that is the case Coii Ref is built for: download it, point it at the folder your references already live in, and run the refern importer during the thirty days rather than after.

Questions

What does refern cost?
$35 once for three devices, with updates included and a 30-day trial that needs no card, according to its pricing page. It is not a subscription, and the same purchase covers Windows, macOS and Linux.
Is there a free alternative to refern on a Mac?
Several. BeeRef is open source under GPL v3 for Windows, Linux and macOS; Kuadro is free for any use including commercial; Adobe Bridge is a free download; and Photos is already on your Mac. None of them indexes folders and searches them the way refern does.
Which alternative imports a refern library?
Coii Ref does. It matches ratings, tags, notes and canvases by relative path, and neither moves nor rewrites your originals, so the refern library still works afterwards. No other app on this page reads a refern library.
Is anything on this list more capable than refern?
Not as a reference library. refern has on-device tagging, search by meaning, a relationship graph, colour search, browser extensions and importers from three apps. The alternatives here win on price, on platform, or by doing one narrower job better.
Which one should I pick if I only want a board that floats over my art program?
PureRef, or BeeRef if you want it free. Both have an always-on-top mode. refern, Eagle and Coii Ref are library applications and none of them floats over another app's window.