-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
spaCy https://spacy.io/ has a feature called Parts of Speech recognition, but it isn't "checking" on an ordinary sense, because correctness of the grammar depends on language
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.