Split Text File (By Lines or Delimiter)

Split a large text file into smaller chunk files by line count or custom delimiter string.

How It Works & Processing Standards

Split a large text file into smaller chunk files by line count or custom delimiter string.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Desktop max file size: 100MB
  • Mobile max file size: 40MB

Split Text File (By Lines or Delimiter) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Split Text File (By Lines or Delimiter)

  1. 1
    Upload Text FileSelect the file to divide.
  2. 2
    Choose Split RuleSpecify lines per chunk or delimiter string.
  3. 3
    Download ChunksSave divided chunks in a ZIP archive.

Common Use Cases

  • Splitting massive CSV datasets into 10,000-line files for spreadsheets with row limits
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