As long-time digital marketers, we’ve become somewhat of a sommelier of marketing tools – and we collect them with the same fervor that many people reserve for wine, pokemon cards or a good cigar.With all the paid tools out there, it might come as a surprise that the marketing tools that we use the most are almost all free, cobbled together from various sites and sources, and solve a number of smaller needs that no one wants to spend $10 a month on, but nonetheless are a necessary tool in our marketing toolbox.The biggest issue we’ve found with these tools is that, since they are usually built only for SEO reasons, their functionality always leaves a little (or lot) to be desired. Either necessary features are missing, or the site is hosted on some janky geocities account from the 90s.That’s why we at SegMetrics have decided to put together a collection of the most important tools that marketers can have access to, and provide them free of charge to anyone who wants to use them.We’re happy to announce our first two tools in the vault:AB Split Test Significance CalculatorI’ve used a number of split test calculators in the past, but they are universally hard to use, don’t show correct significance, or don’t show the amount of improvement between tests.Our Split Test Significance Calculator updates in real time, and shows all the stats you’ll need to quickly make decisions about your split testing. If you’d like to find out more about how to use split testing in your marketing, be sure to check out our article on how to split test, even when you have low traffic.Personal URL ShortenerI have a love-hate relationship with URL Shortener. Something that I’ve written about before. URL Shorteners are a great way to get pretty URLs that are easy to use in publications, say on webinars, or just anywhere you need a memorable URL. Unfortunately because so many of them kill SEO and strip all tracking information from the links, they’re also the number-one support issue for SegMetrics users who want to track their site usage.You can get the URL Shortener here. For the ultimate in branded shortening, you can get a custom short domain from a registrar like\u00a0Namecheap, and point it to one of the redirection pages above. For example, SegMetrics uses the short URL\u00a0mtr.cx, which we have hooked up to this URL Shortner.We hope you enjoy theses tools, and look forward to adding new ones every month.If you have any tools you’d like to see added to the toolbox, leave a comment below!