Merge Multiple Text Blocks
Join multiple text lists or blocks into one, with customizable separators (newlines, commas, pipes).
Merge Settings
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Merge Text Online
Need to join a list of names into a single line? Or combine multiple text files into one document? The Merge Text Tool allows you to concatenate text blocks, join lists, and combine files with custom delimiters instantly.
It's the perfect utility for developers, data analysts, and writers who need to clean up lists, prepare SQL queries, or aggregate content without manual formatting.
Features
List to String
Convert vertical lists into comma-separated strings (CSV) or any other format.
Custom Delimiters
Join with logic: commas, pipes, newlines, arrows, or custom text.
Merge Files
Upload multiple .txt, .md, or .json files to merge them into one document.
Prefix & Suffix
Wrap every item in quotes, brackets, or tags automatically.
Smart Cleaning
Automatically trim whitespace and ignore empty lines for clean output.
Secure & Private
Runs 100% in your browser. No data ever sent to servers.
Common Use Cases
Prepare SQL Queries
Turn a Excel column or list of IDs into a format ready for SQL `IN (...)` clauses. Use the Prefix/Suffix settings to add quotes around each ID.
Output: 'A1', 'B2', 'C3'
Generate CSV Data
Quickly combine data fields into a comma-separated row. Perfect for manually constructing CSV lines from disparate text snippets.
Output: John,Doe,New York
Array Creation (Coding)
Turn a list of words into a JavaScript or Python array. Use `, ` as separator and `"` as wrapper.
Output: "apple", "banana"
Combine Notes
Merge different sections of a report or chapters of a story into one master file. Use `---` as a separator to keep sections distinct.
Output: Intro... --- Body...
Example: List to CSV
Frequently Asked Questions
How do I combine a list of names into a comma-separated string?
Simply paste your list of names into the text blocks (or use one block with multiple lines). Choose "Comma" as your separator. The tool will instantly join them into a single line like Name1, Name2, Name3. Perfect for email lists or tag generation.
Can I format items for SQL queries?
Yes! To create an SQL IN list, set the separator to , (comma space). Then, in the settings, add a single quote ' to both the Prefix and Suffix fields. Your output will look like 'Item1', 'Item2', 'Item3', ready to paste into your query.
How do I merge multiple text files?
Click the Upload icon on any text block to load a file (.txt, .csv, .md, .json). You can add as many blocks as needed and upload a different file to each. The tool will combine their contents in the order you arrange them.
Can I ignore empty lines when merging?
Yes, just check the "Ignore Empty" box. This will automatically skip any text blocks that contain no text, ensuring your final merged result doesn't have gaps or double separators.
Is my data secure?
Yes, 100%. This tool runs entirely in your browser using client-side JavaScript. Your text files and content are never uploaded to our servers. It works completely offline for maximum privacy.
What separators can I use?
You can use standard separators like newlines, spaces, tabs, or commas. You can also define a Custom Separator of any length, such as | or -->, to format your joined text exactly how you want it.