Developer
Grep Tool
Use a grep tool to filter pasted lines with plain-text or regex matching online.
Input text
Matched lines
Why use an online grep tool
An online grep tool helps you filter pasted logs, copied lists, and raw text without opening a terminal. It is useful when you need to isolate matching lines quickly and copy the result into notes, tickets, or another tool.
Because the page supports plain text search, regex mode, line numbers, and inverted matches, it covers the most common quick grep workflows in the browser.
Search pasted text with grep-style filters
Use the grep tool to scan logs, trace outputs, CSV-like lines, or copied code fragments. Regex mode helps when you need pattern-based filtering, while inverted matches are useful for removing noisy lines from a larger paste.
When a browser grep tool is useful
Grep Tool is useful for quick investigations when you do not want to move into a shell just to filter copied text. It works well for log review, support tickets, exported records, and regex experiments where the main goal is to narrow the visible lines and copy the cleaned result immediately.
FAQ
What does a grep tool do?
A grep tool filters pasted lines by a plain-text search or regular expression so you can isolate matching content quickly.
Can I use regex patterns?
Yes. Enable regex mode to use regular expressions, or leave it off to search for plain text safely.
Can I show line numbers or invert matches?
Yes. The tool can prepend line numbers and can also invert the match to show only lines that do not match the current pattern.
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