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 Split List Into Chunks

Split large lists into smaller chunks, groups, or batches based on chunk size or desired chunk count. Clean and sort list items, randomize order, remove duplicates, and export chunked output in multiple formats. All processing runs locally in your browser.

Options
Leave empty for a new random order each run.
Statistics
Total items: 0
Total chunks: 0
Average chunk size: 0
Largest chunk: 0
Smallest chunk: 0
Duplicates removed: 0
Empty lines removed: 0
Distribution: -

⭐ Split List Into Chunks Tool - Explanation and Examples

Split List Into Chunks helps you divide long lists into smaller groups, batches, or parts. You can split by chunk size, by number of chunks, by balanced distribution, or with round-robin assignment. This is useful for workload balancing, batch imports, API requests, and list processing workflows.

🔎 Supported input methods

  • Paste line-separated, comma-separated, tab-separated, or custom-delimited list data
  • Upload TXT, CSV, TSV, XLSX, XLS, JSON, and XML files
  • Select a specific column from uploaded table-like files
  • Pre-clean and re-order data before splitting

⚙️ Chunking modes

  • Split by chunk size: define how many items each chunk should contain
  • Split into number of chunks: define how many chunks to create
  • Balanced distribution: split as evenly as possible (for example 10 items into 3 chunks gives 4,3,3)
  • Round-robin distribution: distribute items one-by-one across chunks for fair assignment

🔎 Example: Split by chunk size

Input:

Apple
Banana
Orange
Pear
Kiwi
Mango

Chunk size: 2

Output:

Chunk 1
Apple
Banana

Chunk 2
Orange
Pear

Chunk 3
Kiwi
Mango

🔎 Example: Round-robin distribution

Input:

A
B
C
D
E
F

Number of chunks: 3

Output chunks:

  • Chunk 1: A, D
  • Chunk 2: B, E
  • Chunk 3: C, F

⚙️ Cleanup and ordering options

  • Trim whitespace and remove empty lines
  • Remove duplicates with optional case-insensitive matching
  • Filter rows containing specific text
  • Keep only rows that match a regex pattern
  • Sort alphabetically, numerically, naturally, by length, reverse, or shuffle with seed

⭐ Output and exports

  • Live output as plain text, CSV, TSV, or JSON
  • Download as TXT, CSV, TSV, JSON, XLSX, or ZIP
  • XLSX export supports one worksheet or one worksheet per chunk
  • ZIP export creates one file per chunk

⚠️ Privacy note

All chunk splitting and file parsing runs in your browser. Your data is not uploaded to a server.

This tool is also known as

  • split list into chunks online
  • chunk list generator
  • divide list into batches
  • split lines into groups
  • round robin list splitter

Frequently Asked Questions

This tool splits one long list into smaller chunks, groups, or batches using chunk size, chunk count, balanced distribution, or round-robin mode.

Yes. You can choose either a fixed chunk size or a fixed number of chunks, plus balanced and round-robin distribution modes.

Balanced mode spreads items as evenly as possible across chunks. Example: 10 items into 3 chunks becomes 4, 3, and 3.

Round-robin places items one-by-one into each chunk in sequence. This is useful for fair workload distribution across teams or tasks.

You can upload TXT, CSV, TSV, XLSX, XLS, JSON, and XML files. For tabular files, you can select the column to split.

Yes. Cleanup options include trim whitespace, remove empty lines, remove duplicates, and optional case-insensitive duplicate detection.

Yes. Sorting options include alphabetical, numerical, natural sort, length-based sorting, reverse order, and random shuffle with optional seed.

Yes. You can keep only rows containing specific text and optionally keep only rows that match a regex pattern.

You can view and download results as Plain Text, CSV, TSV, and JSON. Additional download options include XLSX and ZIP.

You can export all chunks to one worksheet or create a workbook with one worksheet per chunk.

ZIP export creates separate files per chunk, so each chunk is easy to share or import independently.

No. All processing is done in your browser, and your input stays on your device.

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