Introducing KORE: 50x Faster Than Parquet, 10x Smaller Than JSON

Introducing KORE: 50x Faster Than Parquet, 10x Smaller Than JSON Published: May 11, 2026 Author: Sai Arun Kumar Katherashala Read Time: 10 minutes The Problem: File Formats Are Broken Every data engineer has felt the pain. You're working with a 500MB CSV file. Loading it into memory takes minutes. Converting it to Parquet for analytics? 2-3 minutes. Reading it back? Even slower. And JSON? Don't even get me started—it's half a gigabyte. The industry standard file formats—CSV, JSON, Parquet, Avro—