Sizely — Build Size Guard & Bloat Auditor

Your build gained 30 MB between two releases and nobody knows which asset did it.

Unity's own build log gives you a wall of file paths, not the texture someone left uncompressed for iOS or the atlas that got packed into two output files. So the size creeps up release after release, until a store limit or a download-conversion chart forces an emergency audit — and by then the change that caused it is fifty commits deep.

Sizely turns every player build into a size report you can act on.

See where the space went:

• What a device actually downloads, not just what the file weighs (Android)
• The compressed size of every group inside the APK or app bundle, beside the same content uncompressed
• Package and output-file size breakdown
• Size by asset category
• Largest individual assets
• Assets packed more than once

Compare builds

• Save a snapshot for each release
• See total size delta between versions
• Find what grew, shrank, was added or removed
• Compare changes by category, output file and individual asset
• Assets matched by GUID, so a renamed folder or package is not a thousand deletions

Find bloat

• Uncompressed textures for the target platform
• Large textures that may need review
• PCM audio
• Assets packed multiple times
• Large assets in Resources

Guard build size in CI

Run the same comparison headlessly after a player build. Set a growth budget and fail the pipeline when the build exceeds it. Sizely names the assets responsible in the log and can export the report as JSON. Separate exit codes distinguish a real size regression from a configuration error.

Sizely works from Unity's own BuildReport and, on Android, from the APK or app bundle it just built. There is no extra capture step and no intermediate path to maintain — build normally, then open Window → Sizely → Analyze Build.

Supported platforms: Android (APK/AAB), iOS and Windows

Unity: 2022 LTS – Unity 6

Editor-only and read-only: Sizely never builds a player, modifies your assets or writes anything into your Assets folder.