![]() When you install it, you get a 30 day free trial, but the trial only counts days that you actually use the software. Unlike a lot of the tools in my Nerdvent list, Beyond Compare isn’t free – but it does have a feature that I haven’t seen in any other software which I think is absolutely brilliant. You can do a “quick compare”, which just looks at the file paths, dates and sizes, or you can compare files based on their contents – and even configure the comparison rules to ignore things that don’t matter (like Windows vs Unix-style line endings). ![]() It’ll compare folders as well as files, which is useful in all kinds of scenarios - particularly if you’ve ended up with two different versions of a project that contains hundreds of files and subfolders, and you just need to know which bits are missing from each one. Turns out that kind of scenario actually happens a lot in collaborative software development (although we’re normally writing websites and mobile apps, rather than airport thrillers) so having a decent comparison tool that supports three-way merges is incredibly useful. Any passages where they didn’t change the text will be updated to reflect your changes any passages where you didn’t change the text will be updated to reflect their changes, and any passages that you’ve both edited will be shown side-by-side so you can cherry-pick the bits you want to keep and/or rewrite that passage so it makes sense. That’s how a three-way merge works - it’ll compare your changes with those made by your co-author. The changes aren’t fundamentally incompatible - we can quite happily end up with a story about a pilot that’s set in Chicago we just need a bit of help reconciling the changes. Now you have three different versions of your story - the original base draft that you both started with, your version, with all the landmarks and street names changed from London to Chicago, and their version, where our protagonist is a helicopter pilot instead of a professor. You get a first draft that you’re both happy with… then a few days later, you email your friend saying “hey, I’ve had a brilliant idea - I’ve moved the story from London to Chicago” - and they email you back going “Oh, crap… I also had a brilliant idea… the lead character isn’t a professor any more, she’s a helicopter pilot!” For readers who haven’t encountered the joys of the three-way merge, it works kinda like this… imagine you and a friend are writing a book together - a thrilling airport blockbuster. Open them up in Beyond Compare and it’ll show you exactly what’s changed between them:īeyond Compare has comparison tools and viewers for many different file formats, so you can compare images visually to highlight any differences between them - and it’ll automatically scale images so your sources don’t even need to be the same size: ![]() ![]() You’ve got two text files, you want to know if they’re different – and if so, how. It’s a file comparison tool called Beyond Compare, it’s available on macOS, Linux and Windows, and it absolutely rocks. Today’s #nerdvent entry is another one of my must-have tools, a tool that’s saved me so much time over the years that it’s probably paid for itself many, many times over. Dylan's Advent of Cool Nerd Things Day 22: Beyond Compare Posted by Dylan Beattie on ![]()
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