Mapset Verifier
The #1 osu! modding tool. Catch issues before they become problems.
Mapset
Verifier
The #1 osu! modding tool. Catch issues before they become problems.
A total of unique checks
Higher-snapped hyperdash
Perfect stacks too close in time with Hard Rock applied
Overlay layer usage
Spinner readability
Missing custom hitnormal
Inconsistent omitted bar lines
Inconsistent video offset
Inconsistent hit sounds between difficulties
Objects close in time not overlapping
Too short drain time
Inconsistent mapset id, countdown, epilepsy warning, etc
Obscured reverse arrows
0-byte files
Too many consecutive hyperdashes
Too high or low audio bitrate
Too short hit sounds
Empty difficulty file
Chord too big for its difficulty
More than 20% unused audio at the end
Column usage
Mappers' Guild tag present
Edge dashes
Perfect stacks too close in time
Inconsistent hit sounds between difficulties
Higher-snapped hyperdash
Perfect stacks too close in time with Hard Rock applied
Overlay layer usage
Spinner readability
Missing custom hitnormal
Inconsistent omitted bar lines
Inconsistent video offset
Inconsistent hit sounds between difficulties
Objects close in time not overlapping
Too short drain time
Inconsistent mapset id, countdown, epilepsy warning, etc
Obscured reverse arrows
0-byte files
Too many consecutive hyperdashes
Too high or low audio bitrate
Too short hit sounds
Empty difficulty file
Chord too big for its difficulty
More than 20% unused audio at the end
Column usage
Mappers' Guild tag present
Edge dashes
Perfect stacks too close in time
Inconsistent hit sounds between difficulties
Inconsistent hit sounds between difficulties
Perfect stacks too close in time
Edge dashes
Mappers' Guild tag present
Column usage
More than 20% unused audio at the end
Chord too big for its difficulty
Empty difficulty file
Too short hit sounds
Too high or low audio bitrate
Too many consecutive hyperdashes
0-byte files
Obscured reverse arrows
Inconsistent mapset id, countdown, epilepsy warning, etc
Too short drain time
Objects close in time not overlapping
Inconsistent hit sounds between difficulties
Inconsistent video offset
Inconsistent omitted bar lines
Missing custom hitnormal
Spinner readability
Overlay layer usage
Perfect stacks too close in time with Hard Rock applied
Higher-snapped hyperdash
Inconsistent hit sounds between difficulties
Perfect stacks too close in time
Edge dashes
Mappers' Guild tag present
Column usage
More than 20% unused audio at the end
Chord too big for its difficulty
Empty difficulty file
Too short hit sounds
Too high or low audio bitrate
Too many consecutive hyperdashes
0-byte files
Obscured reverse arrows
Inconsistent mapset id, countdown, epilepsy warning, etc
Too short drain time
Objects close in time not overlapping
Inconsistent hit sounds between difficulties
Inconsistent video offset
Inconsistent omitted bar lines
Missing custom hitnormal
Spinner readability
Overlay layer usage
Perfect stacks too close in time with Hard Rock applied
Higher-snapped hyperdash
Automatic Snapshots
Automatically track mapset beatmap changes over time. Browse snapshot history and see exactly what was added, removed, or modified.
Automatic Snapshots
Automatically track mapset beatmap changes over time. Browse snapshot history and see exactly what was added, removed, or modified.
Up to Date with Ranking Criteria
Every check is updated to match current Ranking Criteria, from metadata and timing to mode-specific rules.
Up to Date with Ranking Criteria
Every check is updated to match current Ranking Criteria, from metadata and timing to mode-specific rules.
Rich Documentation
Built-in documentation explains each check: what it looks for, and why it matters. Browse the full checks reference without leaving the app.
Rich Documentation
Built-in documentation explains each check: what it looks for, and why it matters. Browse the full checks reference without leaving the app.
Complete Overview
One place to understand your entire mapset — metadata, objects, settings, difficulty curves, and audio quality.
Complete Overview
One place to understand your entire mapset — metadata, objects, settings, difficulty curves, and audio quality.
Objects Overview
See every snap divisor and unsnapped object across all difficulties, plus an interactive timeline to compare patterns side by side.
Objects Overview
See every snap divisor and unsnapped object across all difficulties, plus an interactive timeline to compare patterns side by side.
Difficulty Overview
Interactive charts for star rating, slider velocity, and skill strain for all modes, with drag-to-zoom.
Difficulty Overview
Interactive charts for star rating, slider velocity, and skill strain for all modes, with drag-to-zoom.
Audio Overview
Inspect audio format, ranking compliance, and a visual spectrogram — all without leaving Mapset Verifier.
Audio Overview
Inspect audio format, ranking compliance, and a visual spectrogram — all without leaving Mapset Verifier.
Why Mapset Verifier?
Here's how it fares against other modding tools.
Ready to try Mapset Verifier?
Grab the latest release for your platform, or browse beta builds and release notes on the downloads page.
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