Free Online Delimiter Converter - Split & Join Text Instantly

Delimiter.site is a free, browser-based delimiter converter that lets you split any column of text into a clean, delimited list in seconds. Paste your data, choose how to split it, choose how to join it, and press the convert button - no account needed, no data ever leaves your browser.

What Is a Delimiter Converter?

A delimiter converter takes a block of text where each item sits on its own line (or is separated by a known character) and reformats it so the items are joined by a different separator. The most common use case is turning a column copied from a spreadsheet into a comma-separated list you can drop straight into a SQL IN (…) clause, a Python list, or a CSV field.

Delimiters are everywhere in data work: commas in CSV files, tabs in TSV exports, semicolons in European locale CSVs, pipes in log files, and newlines in plain lists. Being able to switch between them quickly - without writing a script or opening Excel - saves real time every day.

How to Use the Delimiter Converter

Step 1 - Paste Your Data

Click the Paste button to pull text directly from your clipboard, or click Try sample to load a demo list of fruits. You can also type directly into the left panel. Each item should be on its own line for the default Newline split mode.

Step 2 - Choose Your Split Mode

Use the tab bar at the top to tell the converter how your input is currently delimited. Options include Newline, Comma, Semicolon, Tab, Space, Pipe, and Custom (enter any character or string).

Step 3 - Pick a Join Character

The dropdown in the center panel controls how the output items will be joined. Choose from comma, pipe, semicolon, tab, newline, space, or type any custom string. The output updates only when you press the green convert button, so you can tweak settings freely before committing.

Step 4 - Apply Options & Convert

Open the Options panel to trim whitespace, remove empty lines, deduplicate items, or sort the list A→Z or Z→A. You can also wrap each item in double quotes, single quotes, backticks, or parentheses using the Wrap selector. When everything looks right, press › to convert, then copy the result with one click.

Common Use Cases

SQL IN Clauses

Copy a column of IDs from a spreadsheet, paste them in, choose Comma as the join character, wrap with single quotes, and you have a ready-to-paste IN ('id1', 'id2', 'id3') list for your query.

Programming Lists

Python, JavaScript, and most other languages use comma-separated items inside brackets. Paste your values, join with , , wrap with double quotes, and copy the output straight into your code editor.

Cleaning Exported Data

Tab-separated exports often need to be converted to CSV or vice versa. Switch the split mode to Tab, the join to Comma, enable Trim whitespace, and convert in one step.