# Waves Ecosystem Apps
Here are some useful applications based on Waves blockchain:
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Displays the Waves blockchain data in human-readable format.
Free Waves on Testnet
Allows to top up account balance in the test network with 10 WAVES at a time.
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Browser extension that provides secure key storage and enables interaction with third-party Waves-based services. Waves Keeper API allows web services to interact with user accounts if their browser has Waves Keeper installed.
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Designed for oracle card registration and search.
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Displays ratings of tokens (projects) issued on the Waves blockchain.