loper

Loper · Broadcast, IPTV & streaming

Open .avs files on your Mac.

.avs

Frame-server scripts for encoding and restoration: source, filters and trims.

Loper is a free, minimal editor for macOS that opens AviSynth script (.avs) instantly and colors every part of the file, so you find the value you need at a glance and can fix it right there. No IDE, no project to load, no gray wall of text.

Download Loper – freeAll formats
encode.avs opened in Loper: AviSynth script (.avs) with color-coded Python
Show the file as text
# Prepare the festival encodeLWLibavVideoSource("A001C003.mov")ConvertToYV12(matrix="Rec709")Trim(50, 1550)Crop(0, 140, 0, -140)Spline36Resize(1920, 800)FadeIn(25)FadeOut(25)

How to open .avs files

  1. Download Loper (free, Apple silicon, signed and notarized) and move it to Applications.
  2. Double-click your .avs file, drag it onto the Loper window, or right-click it and choose Open With › Loper.
  3. Want every .avs file to open in Loper? Choose Loper › Make Loper the Default Editor….

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