AviSynth+ 3.7.5.4289

AviSynth+ is an improved version of the AviSynth frameserver, with improved features and developer friendliness.

  • By The Public
  • Open Source
  • Updated Apr 21, 2025
Download for Windows

About AviSynth+

AviSynth+ is a fork of the well-known frameserver, but with community contributions that avoided mainline inclusion until now. In the hope of modernizing AviSynth to meet present day needs and expectations, the project encourages everybody to help reach our goals: add long-sought features, energize the community, and improve developer and user friendliness. AviSynth+ is fully compatible with plugins and scripts written for AviSynth.

What's new in 3.7.5.4289

Hotfix release for YtoUV and non-x86 platforms

  • CMakeLists.txt: if CMAKE_BUILD_TYPE isn't set, use Release
  • Update build.yml, retire unsupported 20.04, add 24.04
  • Fix an llvm syntax warning.
  • rstdoc: update change log
  • Bump to IF v11.1: Fix AVS_Value 64 bit data member declaration for 64 bit non Intel (X86_X64) systems.
  • rstdoc: open 3.7.5 change log, add Raspberry pi stuff to posix.
  • Fix gcc compilation warning
  • Fix: resizer crash for non-intel (e.g. aarch64), regression in 3.7.4
  • Fix #434: YtoUV crash, regression since 61d2c9aa3ae41fc5def86cc30ff7f7c577fdcd16
  • Add pkgconf->cmake detection fallback message for SoundTouch
  • avisynth+_arm64.iss: assorted fixups
  • plugins/CMakeLists.txt: fix VDubFilter build check
  • Remove upx.exe from the source tree

Full release notes »

Technical details

PublisherThe Public
Authorqyot27
Version3.7.5.4289
Release date2025-04-21
LicenseGPL-2.0
Installer typeinno
Architecturex64, arm64
Package IDAviSynth.AviSynthPlus

Install AviSynth+ from the command line

Install with Windows Package Manager
winget install --id=AviSynth.AviSynthPlus -e
Update to the latest version
winget upgrade --id=AviSynth.AviSynthPlus -e
Uninstall
winget uninstall --id=AviSynth.AviSynthPlus -e
Silent install with the offline installer
"AviSynthPlus_3.7.5_20250420.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-

avisynthavsavs+frameserver

AviSynth+ version history

  • 3.7.4.4273
  • 3.7.3.4003
  • 3.7.2.3661
  • 3.7.1.3593
  • 3.7.0.3382

Frequently asked questions

Is AviSynth+ free?

Yes. AviSynth+ is free and open-source software released under the GPL-2.0 license.

What is the latest version of AviSynth+?

The latest version is 3.7.5.4289, released on Apr 21, 2025.

Is it safe to download AviSynth+?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with a063ce8092d7ce861e2c663a492c7bf185b417fab1215a2a1699f3ca5c0f77d9.

Which Windows versions does AviSynth+ support?

AviSynth+ runs on Windows and is available for 64-bit (x64), ARM64 systems.

How do I install AviSynth+ silently?

Run the offline installer with "AviSynthPlus_3.7.5_20250420.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-, or install it with Windows Package Manager: winget install --id=AviSynth.AviSynthPlus -e --silent.

How do I uninstall AviSynth+?

Open Settings › Apps › Installed apps, find AviSynth+ and select Uninstall. From the command line, run winget uninstall --id=AviSynth.AviSynthPlus -e.