metawarc: a command-line tool for metadata extraction from files from WARC (Web ARChive)

Python library to track changes and generate deltas for JSON, CSV and BSON files.

undatum: a command-line tool for data processing. Brings CSV simplicity to JSON lines and BSON

Russian names parsers, gender identification and processing tools

A command line tool for MongoDB documentation generation from mongodb collections schemas

Утилита командной строки, позволяющая редактировать crontab jobs

Russian social NGOs database collection and processing data tools

Awesome list of dataops products, open source and resources