Plytix, Phraseanet, Contentstack, CELUM

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.

Plytix

Phraseanet

Yes

Contentstack

CELUM

Everything else

Plytix

Phraseanet

Contentstack

CELUM

Verdict

A combined PIM and DAM platform for managing product data and media, built for SMB and mid-market ecommerce brands, manufacturers, and agencies.

A free, self-hosted GPLv3 DAM used by French public-sector, cultural and broadcast institutions with in-house technical staff, now being sunset by its vendor in favor of a paid successor, Phrasea.

An enterprise headless CMS and composable DXP for developer-led teams needing multi-channel content delivery, with a native asset-management module that's newer and thinly reviewed.

An enterprise DAM bundled with workflow and creative-review tools, aimed at mid-to-large manufacturing and consumer brands needing deep Adobe/PIM/CMS/e-shop integration and partner-led setup.

Price published

Yes

Billed on

Tiered plans priced by SKU (product) count, not by user seat — all plans include unlimited user seats. Each tier also caps monthly AI credits, API calls/hour, and DAM file storage + CDN traffic (GB/month). Standard is free (500 SKUs, 50GB storage); Pro is $499/mo (50,000 SKUs, 750GB storage); Enterprise is custom/quote-only (unlimited SKUs, custom storage). Optional flat-fee add-ons (Product Feeds $300/mo, Brand Portals $300/mo, Product Data Sheets $200/mo) and one-time onboarding fees ($0 / $3,000 / custom).

No licence fee; implementation and support services may be paid

Quoted per customer

Deployment

Cloud

On-premise

Cloud

Free plan

Yes

Free trial

Transparency index

Not checked

90%

30%

Most common complaint

Not checked

The product is mid-generation: Phrasea is announced to replace Phraseanet in 2026

A free start exists, but the terms for moving to a paid tier are not on the page

The pricing page contains neither tiers nor figures

“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.

Phraseanet The product is mid-generation: Phrasea is announced to replace Phraseanet in 2026 — ask them to answer this in writing before the trial.

Contentstack A free start exists, but the terms for moving to a paid tier are not on the page — ask them to answer this in writing before the trial.

CELUM The pricing page contains neither tiers nor figures — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.