To the point, Powerful Virtual Flight Logging.

ButterLog is the desktop tool that automatically captures your simulator data. No accounts. No subscriptions. Just run it.

The log format is fairly standard, so you have the options to upload them on various log analysis tools, such as flysto.net
Download ButterLog View Sample Log on flysto.net
ButterLog Application Screenshot

Zero-Friction Logging

Why ButterLog is essential for serious sim pilots.

Run and forget

Just install and fly. ButterLog works immediately with your simulator, capturing data locally.

Background Capture

Detects flight start and end automatically. Focus on flying, we handle the logging.

Standardized Format

Logs are saved in a widely compatible format (Garmin G1000 CSV) for easy external use and backup.

Multi-platform

Supports MSFS 2024 and X-Plane 12

Your Data

ButterLog stores logs locally on your computer.

  • No Servers: We do not store, view, or process your flight history.
  • Local Storage: All log files reside on your local hard drive.
  • No Telemetry: The software does not send any flight data back to our servers.

You have full control to view, edit, backup, or delete your logs directly from the tool's installation folder.

log files

Ready for Feedback? Analyze Your Flying with flysto.net

Seamlessly export your logs for professional analysis and a beautiful UI.

  1. Select & Export logs within the ButterLog application.
  2. Upload the files to the secure flysto.net platform.
  3. Review detailed graphs, approach analysis, and a professional flying score.
Analysis
Go to flysto.net for Detailed Analysis Sample flight.

Get Started Now

Download the latest version of ButterLog for Windows.

Download ButterLog 0.1.1 Beta 2

Give Feedback

Feedback welcome, please conteact EmergencyButter on the Voyager Aviation discord