SerifCraft StringTools
Available on Google Play
100+ installsFreeTools
Updated Jan 8, 2026 · v1.0
A simple Android app for managing your flashcards.
SerifCraft StringTools is a fully offline text toolbox that integrates common conversion and validation functions—JSON, URL, Base64, hashing, timestamps, Unicode, and more. Ready to use, no account required, and leaves no trace.
0 years on Google Play
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