PicaJet
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PhotoPrism, Islandora, Transloadit, Cloudinary

Side by side on what we have verified on each vendor’s own pages. Where a fact was not checked, the table says so rather than leaving a blank that reads as “no”.

What decides it · Runs on your own servers

If the files genuinely cannot leave your infrastructure, this is not a close race — the platforms marked No below should not be on the call at all.

PhotoPrism

Yes

Islandora

Yes

Transloadit

No

Cloudinary

No

Everything else

PhotoPrism
Islandora
Transloadit
Cloudinary
Verdict
A self-hosted, single-container photo indexer under AGPL/commercial licensing, for people who want a private on-hardware archive without Google-Photos-level AI tagging or mobile app polish.
An open-source, community-governed digital repository platform on Drupal, for libraries, archives, and museums to manage digital collections.
A file-processing API that handles uploading, transforming, and delivering video, audio, images, and documents, for developers who'd otherwise build that infrastructure in-house.
A developer-facing image and video transformation API and CDN, billed from one pooled credit balance covering storage, transformations and bandwidth together.
Price published
Yes
No
Yes
Yes
Billed on
Subscription per edition, billed annually
No published price on islandora.ca — the core software is free open source ("free to use and always will be"). Paid options are hosting/installation/migration/support/training contracts sold by independent third-party service providers listed on islandora.ca/service-providers (e.g. Born-Digital, discoverygarden); islandora.ca itself does not publish their rates or billing units.
GB of data processed per month (combined input + output file size); paid tiers also gate priority processing slots, collaborator seats, and max file size. Overage on the paid Startup tier billed at $1.80/GB. Enterprise tier is custom/quote-based tiered pricing with whitelabeling.
Credits: one credit is 1,000 transformations, or 1 GB of storage, or 1 GB of video bandwidth
Deployment
On-premise, Cloud
On-premise, Cloud
Cloud
Cloud
Free plan
Yes
No
No
Yes
Free trial
No
No
No
Yes
Transparency index
100%
Not checked
Not checked
60%
Most common complaint
The gap between the free edition and the first paid one is wide: €200 a month
Not checked
Not checked
Prices are published for the API but not for the DAM, so the product being compared with a DAM still has no price

“Not checked” means exactly that: we have not verified it, not that the platform lacks it. Every other value was read off the vendor’s own pages on the date shown on each platform page.

What to ask on the demo

One question per platform, drawn from what actually goes wrong with it — not a generic checklist. Vendors run the demo; this hands the agenda back to you.

PhotoPrism The gap between the free edition and the first paid one is wide: €200 a month — ask them to answer this in writing before the trial.
Cloudinary Prices are published for the API but not for the DAM, so the product being compared with a DAM still has no price — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.