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VapourSynth is an application for video manipulation. Or a plugin. Or a library. Its hard to tell because it has a core library written in C++ and a Python module to allow video scripts to be created. It came to be when I started thinking about alternative designs for Avisynth and most of it was written over a 3 month period. The software has been heavily inspired by Avisynth and aims to be a 21st century rewrite, taking advantage of the advancements computers have made since the late 90s. Requires Python!

Free software
OS: Win
File size: 11MB
Portable version
Old versions
Version history
9.3/10
3 votes
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Screenshots

VapourSynth screenshot
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Latest version

R48 (October 31, 2019)



Download


Visit developer's site

Download VapourSynth R48  11MB  Win

Download VapourSynth R48 64-bit  11MB  Win64




Download Portable and other versions

Download VapourSynth R48 Portable  7MB  Win  Portable

Download VapourSynth R48 Portable 64-bit  8MB  Win64  Portable




Download old versions


Download VapourSynth old versions



Software License

Free software / FOSS (Free download and also Free and Open Source Software)



Supported operating systems

WinWindows




Version history / Release notes / Changelog


R48 AVX2 Instrinsics for Everyone!
After several weeks of testing R48 is finally done. As you may suspect from the title the biggest change this time is optimizations. Now most internal functions have proper AVX2 optimizations and in addition to that the Expr filter was greatly improved and can now rewrite and optimize expressions much better. In addition to that a lot of bugs were fixed and the installer got a few more options. Users of R47 should definitely upgrade.

View full changelog




All features


The main features compared to Avisynth are:

Multithreaded Frame level multithreading
Generalized Colorspaces New Colorspaces can be specified at runtime
Per Frame Properties Additional metadata can be attached to frames
Python Based The scripting part is implemented as a Python module so you dont have have to learn a special language
Support for video with format changes Some video just cant stick to one format or frame size VapourSynth can handle any kind of change




Sections/Browse similar tools






Alternative to VapourSynth


Avisynth







Guides and How to's


Download VapourSynth Portable download from the Download links under Download and Download other versions!



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3 reviews, Showing 1 to 3 reviews


Thank you very much.

Review by Technoman on Nov 1, 2019 Version: R48 OS: Windows 7 64-bit Ease of use: 9/10 Functionality: 9/10 Value for money: 9/10 Overall: 9/10




This what AviSynth should have been: cross-platform, fast, and adapted to new technology. VapourSynth is also compatible with AviSynth+ plugins and scripts.

Review by 11213 on Apr 5, 2018 Version: 43 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




Not for the feint of heart, vapoursynth is intended for people conversant with scripting - this tool is essentially a more modern avisynth replacement using its own python based scripting and new sets of plugins. Some "old" avisynth plugins seem forward compatible, but not all. It is NOT a gui tool although there is a separate gui if you want (see over at doom9, vsedit is its name).

Highly versatile, building on the large knowledge base and many discussions and examples over at doom9, this is a highly versatile "swiss knife" of a thing to use when you can't afford $thousands for a commercial gui tool (vapoursynth is $free).


Review by hydra3333 on Nov 11, 2017 Version: r39 OS: Windows 10 64-bit Ease of use: 6/10 Functionality: 10/10 Value for money: 10/10 Overall: 9/10


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