About the String Builder
Turn a list of lines into the string you need. Add a prefix or suffix, wrap each line in quotes, join with commas, or apply a template like INSERT ... VALUES ('{line}').
Key features
- Add a prefix and suffix to every line
- Wrap lines in single quotes, double quotes or backticks
- Join lines with any delimiter (\n for new lines)
- Templates with {line} and {n} placeholders
- Skip empty lines automatically
- Live output as you type
Turn lists into the string you need
Developers, analysts and marketers constantly reshape lists: IDs into a SQL IN (...) clause, names into a JavaScript array, URLs into HTML links, or keywords into a comma-separated tag list. String Builder does it in seconds without a spreadsheet or script.
Examples
Starting from:
apple
banana
cherry
| Goal | Settings | Output |
|---|---|---|
| SQL list | Wrap ', join , | 'apple', 'banana', 'cherry' |
| JS array items | Wrap ", join , | "apple", "banana", "cherry" |
| Hashtags | Prefix #, join space | #apple #banana #cherry |
| Numbered list | Template {n}. {line}, join \n | 1. apple … |
| SQL inserts | Template INSERT INTO fruit VALUES ('{line}');, join \n | one statement per line |
| HTML list | Template <li>{line}</li>, join \n | <li>apple</li> … |
Typical workflows
- Database queries: paste IDs exported from a spreadsheet and build
WHERE id IN (...). - Code: build arrays, enums or switch cases from a list.
- Marketing: create hashtag sets or comma-separated keyword lists.
- Bulk URLs: add a domain prefix to a list of paths.
- Data loading: generate one INSERT or UPDATE statement per line.
Tips
- Clean the list first with Remove Empty Lines and Remove Duplicate Lines.
- Sort it with Sort Text Lines.
- Pull one column out of a CSV with the Delimited Text Extractor before building.
How to use the String Builder
- Type or paste your text into the input box.
- Choose the options you want.
- The result updates instantly as you type.
- Copy the output or download it as a .txt file.