Android Keystore Check: SHA1/SHA256 with keytool
How to inspect .jks and .keystore files with the keytool command. A reference for all the commands you need during Android releases — from getting SHA1/SHA256 to verifying APK signatures.
Why DevsPayforward?
DevsPayforward makes closed testing accessible by connecting you with a global developer community.
Quickly find testers for your Google Play closed testing tracks.
Developers worldwide act as testers for each other in a pay-it-forward ecosystem.
See who tested your app and track request activity at a glance.
Supports Japanese, English, and more so developers worldwide can participate.
Try the App
Get the 20 testers required for Google Play closed testing — for free — through a developer pay-it-forward community. Test someone's app, and they'll test yours.
Learn more →Projects
Privacy policy for the BearBell (BearRepellent) app by zm soft.
Privacy policy for ChatDiary by zm soft. Covers data collection, usage, and third-party services.
Privacy policy for DevsBoost by zmsoft. Covers data collection, usage, and third-party services.
A free app to help indie Android developers get 20 testers for closed testing under Google's new policy.
Privacy policy for the AndroidDevelopersPayForward app by zm soft.
Privacy policy for the EmergencyLight app by zm soft.
Privacy policy for the InfinitQuiz app by zm soft.
Privacy policy for the No Gym, No App (GymLock) app by zmsoft.
Privacy policy for the ReversiSweeper app by zm soft.
Privacy policy for the WhoIsTheLiar app by zm soft.
Knowledge
Articles on app development, release workflows, and developer insights.
How to inspect .jks and .keystore files with the keytool command. A reference for all the commands you need during Android releases — from getting SHA1/SHA256 to verifying APK signatures.
The design principles behind a multi-stage pipeline for "semantic compression" of logcat and UI tree data before passing it to AI. Covers noise removal, deduplication, and TOON encoding for Android developers.
The differences between npm-based and uvx-based MCP servers when setting up Claude Code/Desktop, with the correct way to configure the filesystem server. Includes Windows-specific caveats.