Filter CSV Rows with Conditions You Control.
DataOlllo is a desktop data preparation app. Select columns, apply matching conditions, and inspect the resulting rows before export. Follow the complete guide to filter a large CSV file locally.
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Estimated time: 4 minutes
Illustrative filter example. Check matching rows and null values before exporting; processing time depends on your file, conditions, and computer.
Built for Lightning Fast Discovery
Complex Conditions
Apply multiple AND/OR conditions, regex matching, and date range filters effortlessly.
No Pre-indexing
Just open your file in a large CSV viewer and start filtering. No need to wait hours for a database to ingest or index your data beforehand.
Check Before Export
Inspect a few included and excluded records, confirm that text and numbers are interpreted correctly, then export only the rows your next task needs.
Find exactly what you need. Fast.
Standard CSV filtering runs locally on your computer. Optional online AI features have separate data flows.
If columns do not parse correctly, check the source with the free CSV delimiter detector first.