FileProInfo - It's All About Files, Software, Online Tools - 100% Free

Intellicus - Intellicus is the global provider of next generation web-based business intelligence and reporting solution.

FileInfo.com - FileInfo is the central file extensions registry and contains a database of over 10,000 file types.

WorkStats.dev - is a dashboard tool for engineers and project managers to quantify their productivity by aggregating various numbers from GitHub, Asana, Slack, etc.

File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.

NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.