Castmill
Castmill: A focused, open-source signage platform with scheduling, permissions and display monitoring. Ranked #157 of 207 in Digital Signage Software by our editors (3.0/10); pricing: Free plan · 14-day trial; best for small teams using open-source signage.
At a glance
- Editor score3.0 / 10
- PricingFree plan · 14-day trial
- Best forSmall teams using open-source signage
- Free planYes
- Paid from$29/mo
- Screen limit4 screens
- Facts checked21 Sep 2026
Where it wins
- Free first-player subscription plus a 14-day trial
- Playlists, calendars, timed events and display monitoring
- Open-source platform with widgets, templates and sharing permissions
Where it doesn't
- Screen limit of four
- Paid plans start at $29 per month
- Playback and management options cover a limited platform set
Our verdict on Castmill
Castmill is a digital signage platform for businesses and signage operators managing one or more displays. It combines browser-based network management with media uploads, playlists, calendar scheduling, timed events, display monitoring, sharing permissions, widgets and templates. The product is positioned for small teams using open-source signage, as well as organizations operating display networks or building partner and white-label arrangements.
Pricing is structured around a free first-player subscription and paid monthly plans. The 14-day trial requires no credit card. Starter costs $29 per month and includes layouts, HD video, images, widgets and sharing. Growth costs $49 per month and adds templates to that feature set. Enterprise costs $99 per month and adds custom layouts while retaining layouts, HD video, images, widgets, templates and sharing. The published category details specify a four-screen limit, so teams should assess display requirements before choosing a plan. The free availability makes Castmill approachable for a small deployment, while the paid tiers provide a clearer path to richer presentation controls.
Its strongest functional area is day-to-day content orchestration. The drag-and-drop playlist builder supports ordering and preview, while calendar-based scheduling and timed events help coordinate media or complete playlists. Display status, location, local time and live preview provide visibility across a network, and groups with item-level sharing permissions support controlled collaboration. Castmill supports browser-based playback and players running on Linux, Android, LG WebOS and other supported hardware; the listed platforms include web, Linux and Android. Choose it when open-source positioning, scheduling and display oversight matter more than broad ecosystem connectivity. Teams needing a larger screen deployment or a wider platform and integration scope should compare alternatives.
Your product? Our editors can test Castmill in depth and publish a review, labelled as paid · from $149/mo →
Castmill pricing
All 3 Castmill plans and prices →
Castmill fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $29/mo |
| Screen limit | 4 screens |
| Offline playback | Not verified |
| Content types | images, videos, animations, audio, widgets |
| User roles | Not verified |
| API access | Yes |
| Mobile app | Not verified |
| Free trial | 14 days · no card needed |
| Deployment | Cloud, Self-hosted, Browser extension |
| Platforms | Web, Linux, Android |
| Support | Email, Live chat, Tickets, Phone, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan · 14-day trial (source) |
| Website | castmill.com |
| Facts checked | 21 Sep 2026 |
Alternatives to Castmill
- OptiSignsA flexible signage platform with mobile administration, offline playback, and a free plan.9.3
- YodeckA flexible signage platform with a generous free tier and broad content support.9.2
- Play Digital SignageFeature-rich signage with a free screen option and wide platform coverage.9.1
See all Castmill alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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