Text Line Prefix, Suffix & Numbering Studio
Prepend prefixes, append suffixes, add sequential line numbers, wrap items in quotes, and format lists for SQL, JSON, Markdown, or code.
Private by architecture:
All processing is 100% client-side memory. Your data never leaves this browser tab.
Quick Presets:
About This Tool
Add custom prefixes and suffixes to every line of text simultaneously, ideal for generating SQL queries, formatting configuration lists, or building code arrays.
Supports line numbering with custom prefixes, custom start numbers, zero padding, bracket wrapping, deduplication, and natural sorting.
Includes instant one-click presets for SQL IN clauses, JSON string arrays, Markdown lists, and code comment blocks.
Key Features
- Prefix & Suffix Wrapping: Prepend and append custom text, quotes, commas, brackets, or code symbols to every line.
- Line Numbering System: Add sequential numbering with custom start offsets, steps, and formats (1., 1), #1, [1], 01.).
- Quote & Syntax Wrapping: Wrap lines in single quotes, double quotes, backticks, parentheses, or square brackets.
- Deduplication & Sorting: Filter duplicate lines, remove blank rows, trim whitespace, and sort alphabetically or naturally.
Frequently Asked Questions
How do I generate an SQL IN clause from a column of IDs?
Click the "SQL IN List" preset. It trims whitespace, skips empty lines, wraps each item in single quotes ('...'), and appends a comma to every row.
What is natural sorting versus alphabetical sorting?
Standard alphabetical sorting places "item10" before "item2". Natural sorting parses embedded numbers by magnitude, correctly ordering "item2" before "item10".
Are my text lines sent to any server?
No. All line parsing, regex replacements, deduplication, and transformations execute 100% locally in your browser memory.
