When it comes to productivity software, hearing the term “open-source” can be a turn-off for some. Giving up software capability to save a few bucks or to preserve your privacy is not a trade-off some professionals are willing to take. The good news is, that compromise hardly exists anymore. There are a ton of excellent open-source options out there that rival even the best paid productivity software, and here are my top picks to definitely consider weaving into your workflow.