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Preroll-Plus
Docker app from grtgbln's Repository
Overview
Preroll Plus is a dynamic preroll updater and scheduler. This app bypasses the limitations Plex has for combining random and sequential prerolls (using the "," and ";" delimiters). It works by using Plex webhooks to update the preroll string in Plex whenever a movie is started, allowing file sets that require randomization to remain randomized while maintaining a broader sequence.
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Preroll Plus is a smart preroll scheduler for Plex that overcomes the platform’s limited ","/";" syntax for mixing random and sequential prerolls.
Using Plex webhooks it rewrites the preroll string each time a movie starts, letting you keep ordered sets while still randomizing their contents – and it can also rotate prerolls automatically on a daily/weekly schedule.
Preroll Plus focuses on doing one thing and doing it efficiently with no extra bloat.
See our Introduction for more details on how Preroll Plus works.
Getting Started
Information
Features
- Easy to use web-based graphical interface that is also mobile friendly.
- Combine Buckets and Sequences to generate your desired preroll functionality.
- Sequences can be scheduled to change throughout the year.
- Run a schedule based on a holiday leveraging one of the largest holiday calendar APIs.
- Prioritize schedules so that you can layer schedules adding more power to what sequence plays for that day.
- Can be run natively or in a Docker container.
Support
Licenses
- GNU GPL v3
- Copyright 2026
Preroll Plus is not affiliated or endorsed by Plex Inc.
Download Statistics
31,628
Total Downloads
2,039
This Month
3,093
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Repository
chadwpalm/prerollplus:latestLast Updated2026-03-26
First Seen2025-03-31
Runtime arguments
- Web UI
http://[IP]:[PORT:4949]/- Network
bridge- Privileged
- false
Template configuration
Web UI PortPorttcp
Container Port: 4949
- Target
- 4949
- Default
- 4949
- Value
- 4949
Prerolls FilesPath
Path to preroll files
- Target
- /prerolls
Config PathPath
Path to config files
- Target
- /config
- Default
- /mnt/user/appdata/prerolls_plus/config
- Value
- /mnt/user/appdata/prerolls_plus/config