File Path:
The reaper-license.rk file is typically located in the REAPER resource directory, which varies by operating system:
File Format: The file is generally small in size (typically under a few kilobytes). It is not a standard executable or a plaintext configuration file easily editable by the user. Instead, it is an encoded data packet containing:
reaper-license.rk is a license/activation file tied to REAPER registration. Keep it backed up, import it via the app when needed, and contact Cockos or vendor support for problems or transfers. Always obtain and manage license files through official channels to stay secure and compliant.
The file reaper-license.rk is the digital license key file used by REAPER (Rapid Environment for Audio Production, Engineering, and Recording), a powerful digital audio workstation (DAW) developed by Cockos Incorporated. 1. Purpose and Function
The .rk file serves as a "key" that converts the evaluation version of REAPER into a fully licensed version. When a user purchases a license, they receive this file (often via email or download) to remove the 5-second splash screen that appears upon startup in the trial version. 2. File Architecture and Security
Unlike many software licenses that rely on complex hardware ID locking or online "phone-home" activation, the REAPER license file is designed with a philosophy of user flexibility: reaper-license.rk
Plain Text/XML Structure: The file typically contains a block of encoded data (often Base64) that includes the user's name, the license type (Discounted or Commercial), and a cryptographic signature.
DRM-Free Approach: Cockos employs a "fair-use" policy. The license is not tied to a specific machine's hardware fingerprint, allowing users to install their license on multiple computers (e.g., a studio desktop and a touring laptop) provided they are the only user. 3. Installation and Pathing
REAPER looks for this file in its resource folder. You can manually install it by dragging the file onto the REAPER interface or placing it in the following directories: Windows: %AppData%\REAPER macOS: ~/Library/Application Support/REAPER Linux: ~/.config/REAPER 4. License Tiers
The content of the reaper-license.rk reflects one of two purchase tiers:
Discounted License: For individuals using REAPER for personal use, or businesses with less than $20,000 annual gross revenue. File Path: The reaper-license
Commercial License: For professional entities exceeding that revenue threshold.
Both licenses provide the exact same software functionality; the .rk file simply stores the legal status of the user. 5. Validity and Updates
A single reaper-license.rk is valid through two major version cycles. For example, a license purchased during version 7.x is valid through all updates until the end of version 8.99. Even after a new major version (9.0) is released, the license remains valid for the older versions indefinitely.
If both previous methods fail (e.g., on Linux or restricted corporate networks):
You will lose the download link after a certain number of downloads. Treat your reaper-license.rk like a car key. File Format: The file is generally small in
After installation, you should never see the REAPER "Evaluation License" splash screen again upon startup. To manually check:
If you see "UNREGISTERED" or "Evaluation" (with a countdown), the installation failed.
The .rk extension stands for REAPER Key. Unlike traditional software where you copy and paste a 20-digit alphanumeric serial number, REAPER uses a cryptographic license file.
The reaper-license.rk is a plain-text file that contains encrypted data specific to you:
Is it safe? Yes. It is not an executable (.exe). It does not contain macros or scripts. It is simply a text file with a digital signature. However, because it is an attachment, some email providers or antivirus software may quarantine it. You must whitelist the email from licensing@cockos.com.