From script to animatic.
Previz Lab breaks your script into shots, boards them with camera moves, plans the set in 3D and cuts an animatic you can watch. It all runs on your own computer.
What it does
One project carries a film from the page to a cut, step by step. You can stop at any step and take the result with you.
Drop in a script. It is broken down into scenes, characters, locations and a numbered shot list you can edit.
Pick a look for the whole film. Characters and locations are drawn once and kept the same from shot to shot.
A floor plan and a 3D room for each location, made from a description, a photo or a frame. Move the camera like in a game engine.
Every shot drawn with its size, angle, lens and movement. Change the camera of any shot from inside the 3D room and draw it again.
The board timed and cut together at 24 frames a second, with the dialogue under each frame.
Shot list as CSV, the board as Word and PDF, the frames, and a timeline for DaVinci Resolve and Premiere Pro (XML and EDL).
Drop a clip or a rough edit, split it into shots, say what changes once (“fire in every compartment of the cabinet”) and approve the look on stills before any video is made.
A workbench with nine tabs: images, painted-over edits, upscaling, video, a node canvas, audio, reference sheets, a 3D stage for camera and blocking, and an agent that turns a brief into a storyboard. It runs on Higgsfield and OpenRouter, and every run is priced first and held to your limits.
A panel inside the app that reads, writes and draws with you. Claude Desktop and Claude Code can drive the same app over MCP.
Your computer, your accounts
Projects, frames and clips are saved in a folder on your computer, and nothing is uploaded to us. Making pictures and video uses your own Higgsfield sign-in or your own OpenRouter key; the script breakdown and the assistant use your own Anthropic or OpenRouter key. You pay those services directly, and you set spending limits in the app. A placeholder mode sends nothing to Higgsfield and spends no credits, so you can learn the steps first. The app opens in Slovenian; English is one click in the top bar.
Get Previz Lab for Mac and Windows
If the download stops with a 504 or “time-out” page, GitHub, which hosts the file, is busy. Wait a minute and press the button again.
It needs
- A Mac with Apple silicon (M1 or later)
- macOS 13 Ventura or later
- About 450 MB of disk space
To install
- Open the downloaded file and drag Previz Lab into Applications.
- The first time, right-click the app and choose Open, then Open again. The app is not notarized by Apple yet, so a double-click is refused once.
- If the app still will not open: System Settings, Privacy & Security, scroll down, Open Anyway.
SHA-256 b3acb39e454232e70bd54b5c6c78c69dfa82f7beac6f8cddab2c8e0c0491b6eb
Previz Lab for Windows
If the download stops with a 504 or “time-out” page, GitHub, which hosts the file, is busy. Wait a minute and press the button again.
It needs
- Windows 10 or 11, 64-bit
- About 570 MB of disk space once unzipped
- No installer and no admin password: it is a folder you unzip and run
Previz Lab for Windows is not code-signed yet, so Windows warns you the first time. If Smart App Control is on (some new Windows 11 PCs), it can block unsigned apps entirely.
First time on Windows
Unblock the zip
Right-click PrevizLab-win-x64.zip, choose Properties, tick Unblock at the bottom, click OK. Doing this before you unzip avoids most warnings.
Unzip it
Right-click the zip, Extract All, and pick a folder you will keep, such as Documents. Do not run it from inside the zip.
Run anyway
Open the “Previz Lab” folder and double-click Previz Lab.exe. If a blue window says “Windows protected your PC”, click More info, then Run anyway.
Keep it handy
Right-click Previz Lab.exe, Send to, Desktop (create shortcut). To update later, replace the folder with the new one: your projects stay.
SHA-256 e2d731efebcd65d948c9cfeda92113920df7bda472afa4b8da534bf3fc7e4b07
Where it stands
Early, and changing fast. Not signed or notarized yet on either system.
macOS 13 or later. Windows 10 and 11, 64-bit. No Intel Mac build yet.