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Data Sparrow
Local by default
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transform · hybrid

Split Data

Split results by row count, byte target, or column value.

planned
Start locallyNothing leaves this device.
Browser worker
Starting local worker… CSV, TSV, JSON, and NDJSON process locally · native formats open consent review

Local limits are enforced before work starts. This build accepts up to 128 MiB, 2 million rows, 10,000 columns, and 8 MiB per field locally. Measured public limits will be refined by cross-browser evidence.

No formulas or scripts run. Cell content is rendered as text. Formula-like CSV values are counted before export.