First Characters from a String Tool – Keep First Characters Of Each Line
Instantly extract and keep the first N characters from the beginning of each line or from an entire text block. Perfect for pulling fixed-width prefixes (like YYYY-MM-DD timestamps, SKU codes, or 3-letter currency symbols) and truncating SEO descriptions with smart word-boundary protection and emoji-safe slicing.
Practical Examples of Keeping the First N Characters
Whether you are cleaning spreadsheet columns, parsing server logs, or truncating product titles, here are the most common ways to use this tool:
| Use Case | Sample Input Line | Settings | Extracted Result |
|---|---|---|---|
| Extract Log Dates | 2026-11-09 14:22:01 [INFO] Started |
Keep 10 (Each Line) |
2026-11-09 |
| Extract Currency / Country Codes | USD - United States Dollar |
Keep 3 (Each Line) |
USD |
| Extract 5-Digit ZIP Codes | 90210-1234 Beverly Hills, CA |
Keep 5 (Each Line) |
90210 |
| Headline / Excerpt Truncation | Learn how to optimize your web pages |
Keep 20 + Avoid cutting words + Ellipsis |
Learn how to... |
How to Extract the First N Characters in Spreadsheets & Code
Need to perform the same operation inside Excel, Google Sheets, SQL, or your own code? Use these built-in substring functions:
| Environment / Language | Formula / Code Syntax | Description |
|---|---|---|
| Excel & Google Sheets | =LEFT(A1, 5) |
Returns the first 5 characters from cell A1. |
| JavaScript / TypeScript | str.slice(0, 5) or Array.from(str).slice(0, 5).join('') |
Array.from prevents splitting 4-byte emojis in half. |
| Python | text[:5] |
Uses Python slice notation from index 0 to 5. |
| SQL (PostgreSQL, MySQL, SQL Server) | SELECT LEFT(column_name, 5) FROM table; |
Extracts the leftmost 5 characters of a column. |
Frequently Asked Questions
How do I remove blank lines from the output?
Uncheck Preserve empty lines in the settings panel. Any blank or whitespace-only lines in your input will be automatically stripped from the result.
What is the difference between "Apply to Each Line" and "Apply to Entire Text"?
Apply to Each Line keeps the first N characters of every individual line in a list. Apply to Entire Text treats your whole input (including line breaks) as a single document and keeps only the first N characters from the very beginning of the text.
Does "Trim leading/trailing spaces" happen before or after keeping characters?
When Trim leading/trailing spaces is checked, accidental leading spaces at the start of a line are removed first (so you don't waste your character count on blank indentation), and any trailing spaces left after slicing are cleaned up before adding an optional ellipsis (...).