Tad is a great tool—very clean and useful for quick exploration.

Data.olllo is focused more on local data processing, not just viewing—things like filtering, transforming, merging, and even running Python code (with AI assistance coming). It’s built for both small and large files with performance in mind, using many cores including Polars under the hood.

Also, good news: the macOS version is in the works and will be submitted to the Mac App Store soon!

And on operating systems other than Windows...