Countrysaurus is an online tool for merging country codes into a CSV spreadsheet with country names in it. You can also download a CSV of country codes or access it via REST API.

In my old job, I often had spreadsheets with (sometimes misspelled) country names, but I needed to feed data into something with country codes, be it ISO-2, ISO-3, OECD, AidData, whatever kind of code.

Finally, I hammered out a little web app with Ruby’s Sinatra web framework to help with this problem. You can upload a (small- or medium-sized) CSV spreadsheet and it will:

• Identify unique country names
• Allow you to pick which kinds of codes you need
• Suggest matches
• Allow you to add new matches (in case it doesn’t have your country name already)
• Allow you to download your spreadsheet.

It’s also on Github. Try it out!