The Ultimate Guide to Osu! Replay Viewers: How to Analyze, Share, and Improve Your Gameplay
Simply watching your cursor move over circles won't make you a better player. You must learn how to actively spot mechanical flaws. Here is what you should look for during review sessions: Identify Your "Aim Choke" Patterns
Circleguard includes advanced metrics like Similarity (to detect replay stealing), Unstable Rate (to flag relax hacks), Snaps (to catch aim correction), and Frametime (to detect timewarp cheats). It presents raw replay data—including time, position, and keys pressed for each frame—in a neatly formatted table.
: If you have an active osu!supporter tag or the score is in the global Top 1,000, click the replay icon (the small camera) next to the username on the online leaderboard.
If you use modifications like , a replay viewer lets you turn off the mod while watching your inputs. This reveals whether you are accurately tracking the invisible notes based on rhythm, or if you are completely guessing where the circles are located. The Future of Replay Viewing: Osu! Lazer osu replay viewer
Replay analyzer improvements · ppy osu · Discussion #31558 - GitHub
This happens if you do not have the beatmap downloaded, or if the beatmap version you have has been updated/modified since the replay was recorded. Ensure you download the exact map version from the osu! website. Missing Cursors or Invisible HUD
The Ultimate Guide to Osu! Replay Viewers: How to Watch, Share, and Analyze Your Gameplay
For a more holistic breakdown of a full play, you need professional-grade software. The Ultimate Guide to Osu
Upload the .osr directly to the website.
To truly understand how these viewers work, one must look at the .osr file format itself. is a proprietary binary file format that stores every action performed during a playthrough.
: Tools like osu-replay-viewer on GitHub allow you to view and render replays into video files (MP4) using FFmpeg without launching the full game.
You can record the replay viewer manually using free software like . Set OBS to capture your game window, start the replay, hit record, and you will have a high-definition video file ready for editing or uploading. Troubleshooting Common Replay Issues Here is what you should look for during
Run the render command (e.g., danser -replay="your_replay.osr" -out="my_video" ). Find your finished video file in the videos output folder. Why Use an External Replay Viewer?
Spotting bad habits—like over-aiming, under-aiming, or tapping too early—is much easier when you can pause, rewind, and slow down the footage.
The easiest way to view a replay is right after you finish a beatmap.
Replay analyzer improvements · ppy osu · Discussion #31558 - GitHub