how it works
See how the tool analyzes each line of your text
counting characters and words per line is a common task in many workflows. developers use it to check that code lines do not exceed maximum line length limits enforced by linters and style guides like eslint, prettier, and pep8. data analysts use it to verify that data fields in csv or log files have consistent lengths and to spot anomalies in datasets. content writers use it to ensure their text lines fit within character limits for social media posts, sms messages, form fields, meta descriptions, ad copy, and email subject lines. students use it to count vocabulary words or items in study lists and flashcard sets. translators use it to verify that translated lines match the approximate length of source lines for layout consistency.
this tool offers four display modes to suit different needs. the count characters mode shows only the character count for each line, which is the fastest and cleanest view when you only need to check string lengths. the count words mode shows only the word count per line, ideal when you need to know how many items are in each line. the characters plus words mode displays both counts side by side for each line, giving you complete information at a glance without switching between views. the line text only mode hides all counts and shows just the numbered lines, useful when you simply need to add line numbers to your text without any analysis or when you want to present the raw data cleanly.
the table-style result panel is designed for easy scanning and quick comparison. each row has a line number on the left for easy reference, the actual line text in the middle with word-break support for long lines, and the count columns on the right with small colored icons that help you identify which count is which at a glance. a summary row at the bottom of the results shows the total number of lines, total characters, total words, and the length of the longest line in your text. this summary helps you quickly identify the longest line, which is useful when you need to find lines that exceed a specific character limit like the common 80 or 120 character limits in coding standards.
empty lines are preserved in the output and counted as zero-length lines, which is important for maintaining the exact line structure of your text. if you enable the line text only mode, empty lines are still numbered but have no text content displayed next to their number. the tool handles very large texts efficiently and processes everything instantly in your browser without any lag. you can copy the entire result as formatted text with line numbers and counts included, download it as a plain text file, or import text from files on your computer in .txt, .csv, .md, .html, and .log formats. the copy button produces a clean numbered format suitable for pasting into documents, emails, or chat messages.
all text processing happens entirely in your browser using client-side javascript. no text is ever sent to any server, stored in any database, or logged anywhere. your content stays completely private on your device at all times. this makes it safe for confidential data exports, private code snippets, sensitive log files, personal lists, proprietary business data, and any material you would not want to share with a third party. whether you are a developer checking code style compliance and line lengths, a data analyst profiling csv field lengths and spotting anomalies, a content writer fitting text into character-limited fields, a student organizing study materials by line, a translator verifying translated text lengths, or anyone who needs to count items per line quickly, this count each line tool on mtools.cloud is the fastest and most private free option available online.