PSequel is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is DBeaver, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to PSequel and 16 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to PSequel are phpMyAdmin (Free, Open Source), DataGrip (Paid), pgAdmin (Free, Open Source) and Valentina Studio (Freemium).
DBeaver - Universal Database Manager and SQL Client. DBeaver is free and open source (GPL) universal database tool for developers and database administrators. Usability is the main goal of this project, program UI is carefully designed and implemented.
phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields.
DbVisualizer is the universal database tool for developers, DBAs and analysts. It is the perfect solution since the same tool can be used on all major operating systems accessing a wide range of databases.