Kontainer, ImageKit, WoodWing Assets, Transloadit

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.

Kontainer

ImageKit

WoodWing Assets

Yes

Transloadit

Everything else

Kontainer

ImageKit

WoodWing Assets

Transloadit

Verdict

A Nordic/European DAM, with optional PIM, aimed at mid-market brand, retail and ecommerce teams wanting fast onboarding without heavy IT involvement, backed by a 30-day no-commitment trial.

An image and video CDN with an API-first asset library, built for fast developer integration, billed on flat monthly tiers with per-GB overage once bandwidth or storage limits are exceeded.

An enterprise digital asset management platform for newsrooms, publishers, museums, agencies, and manufacturers to organize and distribute digital assets.

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.

Price published

Yes

Billed on

Depends on configuration; several features are priced separately

Bandwidth, storage and user seats, with published per-unit rates above the limits

Not disclosed publicly. Pricing page shows three tiers (Starter, Advanced, Ultimate) all gated behind "Request a quote", billed annually; no per-user, per-GB, or credit figures are shown, so the actual billing unit cannot be confirmed from the vendor's site.

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.

Deployment

Cloud

Cloud, On-premise

Cloud

Free plan

Yes

Free trial

Yes

Transparency index

20%

70%

Not checked

Most common complaint

Feature-level add-on pricing makes the final figure hard to anticipate before a quote

Several units are metered at once: bandwidth, storage, video units and seats

Not checked

“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.

Kontainer Feature-level add-on pricing makes the final figure hard to anticipate before a quote — ask them to answer this in writing before the trial.

ImageKit Several units are metered at once: bandwidth, storage, video units and seats — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.