Add Prefix, Suffix & Line Numbers Tool
Free online prefix and suffix generator for lines and words. Prepend prefixes, append suffixes, wrap words or lines in double quotes, single quotes, backticks, or brackets, and automatically number text lines with custom separators. 100% private, client-side execution.
Add Prefix, Suffix & Line Numbers
Prepend or append text, wrap words/lines in quotes or brackets, and add automatic numbering.
Step-by-Step Instructions
Paste Multi-Line List
Input your list of keywords, file names, URLs, database IDs, or code statements into the text area.
Specify Prefix and Suffix
Enter the text, quotation mark, HTML tag, markdown symbol, or numbering sequence to prepend to the beginning or append to the end of each line.
Configure Line Filtering Rules
Choose whether to skip empty lines, ignore leading/trailing whitespace, or apply incremental line numbering (e.g. 1., 2., 3.).
Copy Formatted Output
Instantly copy the wrapped list to your clipboard for database queries, HTML lists, markdown drafting, or script variables.
Key Features & Capabilities
- Simultaneous prefix prepending and suffix appending across thousands of lines in real time
- Dynamic sequential numbering variable (`{{i}}`, `1.`, `01.`) with custom starting index and step size
- Empty line preservation or omission options to avoid unwanted wrappers on blank lines
- Pre-configured formatting presets for SQL `IN ('...')` clauses, HTML `<li>...</li>` tags, JSON string arrays, and Markdown checklists
- High performance JavaScript string processing handling 50,000+ lines in milliseconds
- 100% private in-browser execution with zero network data transfer
Frequently Asked Questions
How can I wrap a list of items into SQL quotes and commas?
Enter `'` into the Prefix field and `',` into the Suffix field (or use the built-in SQL preset). The tool instantly formats a plain column of items into `'item1', 'item2', 'item3'`, ready to paste directly into a SQL `WHERE column IN (...)` query.
Can I add sequential line numbers or bullet points to each line?
Yes. You can add incremental numbers (e.g., `1. `, `2. `) or custom bullet characters (e.g., `- `, `* `, `• `) as a prefix to quickly create numbered outlines and markdown lists.
Does the tool add prefixes and suffixes to empty or blank lines?
By default, the tool skips blank lines so you don't end up with orphan quotes or tags on empty rows. You can toggle this setting if you want blank lines included.
Is there any limit on how many lines can be formatted at once?
No. The local browser string engine can process massive lists of over 100,000 lines without lag or server timeouts.
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