Hey all, I've discovered this handy tool called "SQLite Database Browser". I think you might find it handy because basically what it offers is a GUI for database-oriented plugins. It's a little bit tricky at first, but it's saved me a fair few hours making database changes and such. For example, you can't rename column headers in SQLite via its CLI, but you can with this tool. I'm sure there are many other advantages to using this. It's OS-independent, all you need is Nokia's Qt library (download links: Windows, Linux and Mac OS X) - that being said, I downloaded it on my MacBook and it ran fine without having to install Qt... To quote its website: Download SQLite Database Browser (SourceForge) here.
Navicat Light, 'nuf said. Can be used for all mayor databases, also for Mac and Linux. Features (second column): http://www.navicat.com/en/products/navicat_premium/premium_feature.html Download: http://download.cnet.com/Navicat-Lite-Free-Multiple-Database-GUI/3000-10254_4-10870715.html
I think Valentina Studio is better free tool for linux, windows and Mac OX S and the best manager for SQLite for all platforms. http://www.valentina-db.com/en/valentina-studio-overview You can install Valentina Studio (FREE) directly from Mac App Store: https://itunes.apple.com/us/app/valentina-studio/id604825918?ls=1&mt=12