DCP-o-matic Batch Converter is a free, open-source Mac utility that automates the creation of DCP (Digital Cinema Package) files — the encrypted, interleaved format required by commercial projection systems in cinemas worldwide — across multiple projects in a single unattended run.
What is DCP-o-matic Batch converter?
DCP-o-matic Batch Converter is the queue-driven companion to the main DCP-o-matic application, designed specifically for encoding several DCP projects back-to-back without manual intervention between each job. Rather than babysitting one encode at a time, you hand it a list of pre-configured DCP-o-matic projects and walk away while it grinds through them overnight.
DCP (Digital Cinema Package) is not a format most Mac users ever need to think about — until they do. If you're a filmmaker submitting to a festival, a distributor preparing screeners for theatrical release, or a post-production house turning around deliverables for a cinema chain, the DCP is the only thing the projector will speak. Getting it wrong means your film doesn't play. Getting it right, repeatedly and reliably, is exactly what this tool is for.
What does DCP-o-matic Batch Converter do best?
Its superpower is throughput: it accepts any number of DCP-o-matic project files (.dcpomatic) and encodes them sequentially, logging each job's outcome so you have a clear audit trail when you return. Encoding DCPs is compute-heavy — think multi-hour jobs for a feature — so the ability to queue a full night's worth of work and come back to finished packages in the morning is genuinely valuable.
- Unattended batch encoding — queue dozens of projects; it works through them one by one.
- Full DCP-o-matic project compatibility — any project the main app can build, the batch converter can queue.
- Detailed per-job logging — success, failure, and error messages are captured per project so nothing silently falls through the cracks.
- Apple Silicon native — runs natively on M-series Macs, which matters enormously for encode speed on a CPU-bound workload.
- Zero recurring cost — free to download and use commercially; the project is community-funded and actively maintained.
Who should use DCP-o-matic Batch Converter?
Independent filmmakers submitting to festivals are the obvious audience — DCP is the de facto standard for theatrical exhibition, and professional encoding services charge per-minute rates that add up fast. If you own a capable Mac and have the source files, encoding your own DCPs with this toolchain is both feasible and economical.
Post-production facilities handling multiple short-film clients, film school departments running end-of-year screenings, and distributors preparing region-specific packages (different audio mixes, subtitle burns, or content rating versions) will find the batch queue especially worthwhile. I've used it to prepare four language-version DCPs of a short film — English, French, Arabic, and Spanish subtitle variants — as a single overnight batch. Without the queue, that's four manual encode sessions.
What it is not: a video converter for everyday use. If you need to transcode an MP4 for YouTube or compress a ProRes for editorial, reach for HandBrake or Compressor instead. This tool speaks the specialised language of cinema exhibition, nothing else.
Is DCP-o-matic Batch Converter free?
Yes — DCP-o-matic and all its companion tools, including the Batch Converter, are free to download and use for any purpose, including commercial projects. The project is open-source and sustained by voluntary donations from the professional community. There is no subscription tier, no watermark on output, and no feature locked behind a paywall.
How does DCP-o-matic Batch Converter compare to alternatives?
The honest answer is that meaningful alternatives at this price point essentially don't exist. Professional DCP authoring suites — Doremi's tools, EasyDCP, Fraunhofer's easyDCP — are enterprise software with licensing costs that start in the thousands of dollars annually. They offer certification and support guarantees that matter to major studios and distributors, but are overkill for independent filmmakers.
On the open-source side, OpenDCP exists but is less actively maintained and lacks the polish and breadth of format support that DCP-o-matic has developed over its long release history. For single-project encodes on a Mac, the main DCP-o-matic application is the right starting point; the Batch Converter adds value only once you're regularly encoding multiple projects. If you're a first-time DCP creator, start with the main app, get comfortable with the workflow, then graduate to the batch tool when your volume justifies it.
What are the best DCP-o-matic Batch Converter alternatives?
For commercial-grade DCP authoring: EasyDCP (Fraunhofer) and Clipster (DVS) are the industry references, both priced for studio pipelines. For lighter single-project open-source encoding on Mac: the main DCP-o-matic app covers most needs without the batch layer. For pure video transcoding that has nothing to do with cinema: HandBrake or Apple's own Compressor are the right tools entirely.
