Multitrack audio and MIDI recorder for your Windows PC

REAPER (64-bit)

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REAPER 6.66 (64-bit)

  -  14.58 MB  -  Trial
Free Download

Security Status

  • Latest Version

    REAPER 7.27 (64-bit)

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Cockos Incorporated / External Link

  • Filename

    reaper666_x64-install.exe

  • MD5 Checksum

    654bc0568efd2da37ea49af0adf5dd15

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of REAPER 6.66 (64-bit).


For those interested in downloading the most recent release of REAPER (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download REAPER 6.66 (64-bit)

  • REAPER 6.66 (64-bit) Screenshots

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    REAPER 6.66 (64-bit) Screenshot 1

What's new in this version:

- FX: fix UI glitches when showing offline FX in chain view (6.65 regression)
- Linux: improve behavior of listview clicks to listview images and manager fields
- Linux: improve listview column alignment to match other platforms
- Master metering: fix RMS stereo loudness readout when RMS window length has been customized
- Media: support Sound Designer II audio files (add .sd2 extension so REAPER can identify the file)
- Media: when loading .sd2 files on macOS, copy resource fork to plain file "mediafile.sd2.rsrc" for portability to non-macOS systems
- Media: import files with .L/.R/.pcm/.raw extensions as raw PCM audio
- Media: when importing raw PCM audio (including .sd2), use best-guess audio parameters and warn with instructions about how to fix incorrect playback
- MIDI: fix stuck notes when using replace recording
- Notation editor: fix various drawing glitches
- Notation editor: improve hit testing of dynamics/custom notation
- Preferences: move media/video and media/import preferences to separate pages
- Project settings: fix enabling/disabling pan law gain compensation in project settings advanced tab (6.65 regression)
- Render: fix applying render fades when project start time is negative and also applying brickwall limiter
- Render: improve behavior of option to automatically increment rendered file name
- Routing/grouping matrix: improve appearance of folder expand/collapse icons

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