Castmill review
A focused, open-source signage platform with scheduling, permissions and display monitoring.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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.
Castmill pros and cons
- 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
Castmill fact sheet, pricing and score →
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