RxFilmStudio
Score, narrate, caption, and render your film in one window
RxFilmStudio is a native macOS app that consolidates film post-production tasks — scoring, narration, captioning, stills, and rendering — into a single window, with an AI agent that proposes edits for review before they're applied. Version 1.9.0 is a 41 MB download for Apple Silicon Macs.
Key Features
AI music scoring
Generate music cues with Lyria, with sections like Intro, Build, Chorus, and Outro, keeping every take in one reel.
Multi-speaker narration
Voice narration tuned line by line, with multiple speakers (e.g., Narrator, Guest 01, Guest 02) on the timeline.
Transcription and captions
Transcribe, translate, and retime captions, with export to VTT or SRT.
Image generation
Create stills and reference art without leaving the app.
Remotion-based timeline and rendering
A real editing timeline combining video, voice, and score, rendering at 4K (3840×2160) at 60 fps directly from the app.
Agent-directed editing
Ask the agent for a change — e.g., a fade-in on the wide shot, retimed captions, or a swapped chorus take — and review every proposed edit as a diff before it lands.
How It Works
- 1
Work in a single reel
Everything — music, narration, captions, stills, and the timeline — is organized around a reel at 3840×2160 and 60 fps inside one window.
- 2
Direct with the agent
Instead of hand-editing everything, you ask the agent for changes; it proposes file-level edits (e.g., changes to Scene01.tsx or captions.vtt) that you review and approve before they're applied.
Pros & Cons
Pros
- Combines scoring, narration, captioning, image generation, and rendering in one native app
- Renders up to 4K at 60 fps natively, with no separate export pipeline mentioned
- Agent workflow keeps a human in the loop — every proposed edit is reviewed before landing
- Free to download
- Caption tooling includes translation and retiming, not just transcription
Cons
- macOS-only, and specifically Apple Silicon — no Windows or Linux builds
- Requires signing in to use the app
- AI features (music via Lyria, voices, captions, agent) depend on generation quality and may need manual retakes
- Rendering pipeline is built on Remotion (TSX-based scenes), which may not match the workflow of traditional NLEs
- The page describes no team/collaboration features or integrations beyond its own tools
Who It's For
Best for
- Indie filmmakers and solo creators working on Apple Silicon Macs who want an all-in-one tool for scoring, narrating, and captioning
- Creators comfortable reviewing AI-proposed edits (diff-style) rather than hand-editing everything
- Anyone needing quick 4K/60 fps renders of short reels with subtitles
Not ideal for
- Windows or Linux users, or Intel Mac owners
- Productions requiring established NLE workflows or third-party plugin ecosystems
- Teams needing multi-user collaboration features (not mentioned on the page)
Use Cases
- Scoring short films or reels with AI-generated music cues
- Producing multi-speaker narration or voiceover line by line
- Transcribing, translating, and exporting subtitles as VTT or SRT
- Generating stills and reference art during edit
- Rendering a finished 4K/60 fps cut directly from the app
Pricing
Free. The download is listed as "macOS · Apple Silicon · Free" at version 1.9.0.
RxFilmStudio
Free
Full native macOS (Apple Silicon) app, v 1.9.0, 41 MB DMG download
Integrations
- Lyria (AI music generation)
- Remotion (timeline and rendering)
FAQ
What is RxFilmStudio?
A native macOS app that brings scoring, narration, captioning, stills, and rendering into one window, with an AI agent that proposes edits you review before they're applied.
How much does it cost?
It's free — the download is listed as "macOS · Apple Silicon · Free".
Which platforms does it run on?
It runs natively on macOS with Apple Silicon. A 41 MB DMG (v 1.9.0) is available for download.
What can it render?
It renders from a real timeline at up to 3840×2160 (4K) at 60 fps, straight out of the app.
How does the AI agent work?
You ask for a change — such as a fade-in on a shot, retimed captions, or swapping a chorus take — and the agent proposes the edit; every proposal is reviewed before it lands in your project.
What caption formats does it export?
Captions can be exported as VTT or SRT, with support for transcription, translation, and retiming.
Is the source available?
The product links to GitHub Releases and is part of RxLab; releases are distributed there.
