ToolJovia
Files

Record-aware File Splitter

Split a UTF-8 CSV or NDJSON file into independently readable record parts in a stored ZIP.

✓ Browser-local processing
Files are read locally and are not uploaded.

Loading tool…

How to use Record-aware File Splitter

Keep quoted CSV rows and JSON records intact instead of cutting arbitrary bytes. Every CSV part repeats the header; generated filenames and a manifest make the part order explicit.

  1. Enter local file, records per part.
  2. Choose the settings for record-aware file splitter, then run the tool.
  3. Review the result and any limitations before copying or downloading it.

Good to know

  • 200,000-byte UTF-8 input,5000 records and50 parts. Generated ZIP is stored without compression; no archive import or extraction.
  • CSV is reserialized with formula-protected cells and repeated headers. NDJSON is parsed/reserialized, so whitespace and numeric spelling can change.
  • Processing is local. Output is limited to 1,000,000 text characters unless a stricter file limit is stated.

Common questions

Can a quoted multiline CSV record be split?

No. Part boundaries are chosen after CSV parsing, so the entire logical record remains in one part.

Is this input sent to a server?

No. The application processes this input inside your browser tab and does not save it to persistent storage.

Keep going with related tools

All files →
Files

Binary File Split and Join

Split local bytes into stored ZIP parts with a hash manifest, or concatenate an explicit ordered file selection.

Data

CSV Record Concatenator

Append local CSV records with strict, intersection or union header alignment and source-file provenance.

Data

NDJSON Converter

Convert a JSON array to independent JSON lines or collect NDJSON records with line-numbered errors.