usql - Universal command-line interface for SQL databases
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Open PostgreSQL Monitoring - Oversee and Manage Your PostgreSQL Servers
POEditor - The translation and localization management platform that's easy to use *and* affordable!
Errbit - The open source error catcher that's Airbrake API compliant
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.