Cetvel is a minimalistic font comparison app to compare uploaded files against web safe and fallback fonts ("sans-serif", "serif", "monospace", "cursive").
Cetvel (/d͡ʒetvel/) means "ruler" in Turkish. As in ruler (/ruːləʳ/), a long flat piece of wood, metal, or plastic with straight edges marked in centimetres (or other units). Rulers are used to measure things and to draw straight lines.
It has been developed with the help of @Potherca, while working at Just Eat Takeaway. We wanted to demonstrate baseline differences of a few fonts. The original version was static without uploading feature. I fine tuned the original and Cetvel was born.
Check out https://pemre.github.io/cetvel/