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App store metadata length checker

Type App Store and Google Play listing fields to see used and remaining counts against store limits as you go, including the 100-byte Apple keyword field, with findings and a CSV or JSON report.

Type into any field and the counts update live.

Limits here were checked against App Store Connect and Play Console help pages in November 2026; stores change them now and then, so treat the numbers as dated facts rather than law. Findings split hard store rules from ASO conventions: the rules Apple and Google enforce are marked as such, and folk wisdom (duplicated keywords, spaces after commas) is marked as convention you can ignore. Nothing leaves this tab.
Options

More regex & cron tools

- Screenshot size checker (/images/app-store-screenshot-size-checker)
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- Screen & viewport (/browser/screen)
All regex & cron tools (/dev)

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Canonical HTML: https://nutter.tools/dev/app-store-metadata-length-checker
Markdown version: https://nutter.tools/dev/app-store-metadata-length-checker.md
Plain-text version: https://nutter.tools/dev/app-store-metadata-length-checker.txt
Agent index: https://nutter.tools/llms.txt