A LITTLE HELP FOR YOUR NEXT TASK
Date Column Normalizer
Convert date columns with explicit input formats and timezone rules.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
Preparing private data workspace…
How to use Date Column Normalizer
- Open or paste your data, or load the working sample.
- Choose columns and explicit processing rules. Review the proposed result and warnings.
- Download the chosen result dataset, JSON artifact or report; save a draft to continue later.
What are the limits of Date Column Normalizer?
Date-only formats are YYYY-MM-DD, DD/MM/YYYY or MM/DD/YYYY; invalid dates are rejected rather than rolled over. Timestamp input requires an explicit ISO offset and is converted to the chosen IANA display zone. No ambiguous date guessing. Failed rows can be preserved and reported or reject processing. Inputs stay in browser memory. No workbook is created. Table limits: 5 MB total text, 25,000 rows, 64 columns and 200,000 cells; expensive operations have stricter limits. Processing can be cancelled.