List Delimiter Converter
Free online list delimiter converter. Convert lists between comma, newline, tab, pipe, semicolon, space, and custom separators. Auto-detect, deduplicate, sort, and trim items. 100% client-side.
Loading tool...
What is List Delimiter Converter?
The List Delimiter Converter is a free, browser-based tool that converts lists of items between different delimiters — comma, newline, tab, pipe, semicolon, space, or any custom separator. It can also auto-detect the source delimiter, trim whitespace, remove empty items, remove duplicates, and sort the output alphabetically. Everything runs locally in your browser, so your data never leaves your device — making it safe for email lists, IDs, and other sensitive data.
Key Benefits
- Convert between 7 built-in delimiters plus unlimited custom separators
- Auto-detect intelligently identifies the source delimiter from your text
- Remove duplicates with optional case-insensitive matching
- Trim whitespace and strip empty items for clean output
- 100% client-side — no data leaves your browser
Common Use Cases
- •Convert a column of email addresses into a comma-separated list for an email client
- •Turn a CSV row of values into a newline-separated list for a spreadsheet
- •Transform tab-separated data into pipe-delimited format for databases
- •Clean up a list by removing duplicates and empty entries
- •Prepare IDs or tags for use in SQL IN clauses or API queries
How to Use the List Delimiter Converter
- Paste Your List: Paste your list of items into the input box. The items can be separated by commas, new lines, tabs, pipes, semicolons, spaces, or any custom delimiter.
- Choose Source Delimiter: Select the delimiter your input currently uses, or leave it on Auto-detect to let the tool identify it automatically based on frequency.
- Set Processing Options: Optionally enable trim whitespace, remove empty items, remove duplicates (with case-insensitive option), and sort the results alphabetically.
- Pick Target Delimiter and Copy: Choose the delimiter you want for the output, then copy the converted list to your clipboard or download it as a text file.
Key Features
- Convert between 7 built-in delimiters: comma, comma+space, newline, tab, semicolon, pipe, and space
- Auto-detect mode intelligently identifies the source delimiter from your pasted text
- Custom source and target delimiters for any separator, including emojis and multi-character strings
- Remove duplicates with optional case-insensitive matching
- Trim whitespace and remove empty items automatically
- Sort results A→Z or Z→A, copy to clipboard, or download as .txt