Tool categories

Wrap each line of text in square brackets. Paste a list and get bracketed output instantly. Works fast in your browser.

Wrap each line of text in double quotes. Paste a list and get quoted output instantly. Use it in your browser for quick, copy-ready results.

Add line numbers to each line of text with selectable separators. Choose no separator, a period, or a closing parenthesis.

Add a custom prefix to every line in your text. Enter a prefix once and apply it to all lines instantly. In your browser.

Add a custom suffix to every line in your text. Enter a suffix once and apply it to all lines instantly. In your browser.

Wrap each line of text in parentheses. Paste a list and get parenthesized output instantly. Works fast in your browser.

Wrap each line of text in single quotes. Paste a list and get quoted output instantly. Use it in your browser for quick, copy-ready results.

Calculate exact age from a birth date. Enter a date of birth and get years, months, and days instantly, computed privately in your browser.

Calculate how old you are in days. Enter a birth date and get the total completed days instantly, computed privately in your browser.

Calculate how old you are in months. Enter a birth date and get the total completed months instantly, computed privately in your browser.

Calculate how old you are in weeks. Enter a birth date and get the total completed weeks instantly, computed privately in your browser.

Calculate how old you will be in a set number of days. Enter a birth date and day count to get exact years, months, and days.

Calculate how old you will be in a set number of months. Enter a birth date and month count to get exact years, months, and days.

Calculate how old you will be in a set number of weeks. Enter a birth date and week count to get exact years, months, and days.

Calculate how old you will be on a specific date. Enter a birth date and target date to get exact years, months, and days.

Estimate AI token count instantly from your text input. Paste content and get a quick token estimate for prompt planning.

Calculate the average of a line-separated list of numbers. Paste values and get the mean instantly. Works fast in your browser.

Calculate average sentence length instantly. Paste text and get the mean words per sentence in one click. In your browser.

Calculate average word length instantly. Paste text and get the mean characters per word in one click. In your browser.

Calculate the total UTF-8 byte size of your text instantly. Paste content and get an exact byte count in one click.

Generate checkbox HTML inputs from a list of values. Paste items and get checkbox markup instantly. Works fast in your browser.

Replace every group of four spaces with a tab character instantly. Paste any indented code or text and convert spacing in your browser.

Replace tab characters with four spaces. Clean up pasted text and align indentation instantly. Works fast in your browser.

Replace tab characters with a single space. Clean up pasted text instantly. Use it in your browser for quick, copy-ready results.

Count how many IPv4 addresses exist between two endpoints. Paste start and end IPs to get the total. In your browser.

Count the number of lines in a text block. Paste your text and get the line count instantly. Works fast in your browser.

Turn YouTube channel URLs into subscribe links. Paste one URL per line and get confirmation-ready links instantly.

Convert CSV data into a clean HTML table. Paste CSV and get table markup instantly. Use it in your browser for quick, copy-ready results.

Decode Base64 strings into readable text. Paste Base64 data and get clear output instantly. Works fast in your browser.

Remove empty lines from text. Paste your text and get a cleaner block instantly. Use it in your browser for quick, copy-ready results.

Encode plain text into Base64 so it can travel safely through APIs, JSON, or HTML. Runs locally in your browser.

Estimate how long text will take to read. Set words per minute and get instant reading time. Works fast in your browser.

Grade any test or quiz instantly. Enter the number of questions and wrong answers to get a percentage score and letter grade. Free, fast, browser-based.

Find out what grade you need on your final exam to hit your target course grade. Enter your current grade, goal grade, and exam weight. Instant result.

Find the highest number in a line-separated list. Paste values and get the maximum instantly. Works fast in your browser.

Find the longest line in a text block. Paste your text and get the longest line instantly. Works fast in your browser.

Find the lowest number in a line-separated list. Paste values and get the minimum instantly. Works fast in your browser.

Filter a line-separated list of numbers using inclusive start and end values. Return matching numbers instantly.

Find the shortest line in a text block. Paste your text and get the shortest line instantly. Works fast in your browser.

Convert dot-separated names like john.doe into Last, First format with proper Title Case. Paste a list and get results instantly.

Extract the domain from any URL list. Paste one URL per line and get clean hostnames instantly in your browser.

Extract YouTube video IDs from links. Paste URLs and get the video IDs instantly. Use it in your browser for quick, copy-ready results.

Calculate your GPA from letter grades and credit hours instantly. Enter each course grade and credits to get your weighted GPA. Free and browser-based.

Convert grams to teaspoons instantly for sugar, salt, flour, water, butter, and honey. Enter one gram value per line and get accurate results fast.

Generate HTML button markup for each line of text. Paste labels and get buttons instantly. Works fast in your browser.

Generate iframe HTML markup from a list of URLs. Paste links and get iframe tags instantly. Works fast in your browser.

Generate image tag HTML from a list of URLs. Paste links and get <img> tags instantly. Use it in your browser for quick, copy-ready results.

Convert integer IP values to IPv4 dot-decimal format. Paste one integer per line and get IPs instantly. In your browser.

Sort a list of IPv4 addresses from lowest to highest. Paste IPs and get sorted output instantly. Works fast in your browser.

Convert IPv4 dot-decimal addresses to integer format. Paste one IP per line and get numeric output instantly. In your browser.

Convert a line-separated list into a PHP array with double-quoted values. Works instantly in your browser. In your browser.

Convert a line-separated list into a PHP array with single-quoted values. Works instantly in your browser. In your browser.

Prepend a dollar sign to each line of numbers. Format currency values instantly. Use it in your browser for quick, copy-ready results.

Count the total number of paragraphs in your text instantly. Paste content and get an exact paragraph count in one click.

Convert any percentage score to a letter grade instantly. Uses the standard US grading scale with plus and minus grades. Free and private, runs in your browser.

Generate radio button HTML inputs from a list of values. Paste items and get radio markup instantly. In your browser.

Generate a list of random IPv4 addresses. Enter how many IPs you need and get them instantly. Works fast in your browser.

Strip dollar signs from currency values. Paste your list and get clean numbers instantly. Use it in your browser for quick, copy-ready results.

Remove duplicate lines from a list. Paste one value per line and get a clean, unique list instantly. In your browser.

Collapse multiple spaces into a single space. Clean up pasted text instantly. Use it in your browser for quick, copy-ready results.

Generate a <select> dropdown from a list of values. Paste items and get HTML instantly. Use it in your browser for quick, copy-ready results.

Count the total number of sentences in your text instantly. Paste content and get an exact sentence count in one click.

Randomly shuffle a line-separated list. Paste your items and get a randomized order instantly. Works fast in your browser.

Convert titles and phrases into clean, SEO-friendly URL slugs. Runs entirely in your browser and works line by line.

Sort a line-separated list by line length. Choose shortest-to-longest or longest-to-shortest ordering. In your browser.

Sort a line-separated list alphabetically. Choose A–Z or Z–A ordering with one click. Use it in your browser for quick, copy-ready results.

Sort a line-separated list of numbers in ascending or descending order. Get ordered output instantly. In your browser.

Convert text to lowercase instantly. Paste your text and get lowercase output in seconds. Use it in your browser for quick, copy-ready results.

Convert text to uppercase instantly. Paste your text and get uppercase output in seconds. Use it in your browser for quick, copy-ready results.

Remove hash fragments from URLs in bulk. Paste one URL per line and get clean links instantly. Works fast in your browser.

Remove the host from URLs and return only the path, query, and hash. Works in bulk and runs in your browser. In your browser.

Remove HTML tags and keep the readable text. Paste markup and get clean text instantly. Use it in your browser for quick, copy-ready results.

Remove port numbers from URLs in bulk. Paste one URL per line to get clean hostnames instantly. Works fast in your browser.

Remove query strings from URLs in bulk. Paste one URL per line to get clean shareable links instantly. In your browser.

Remove the scheme from URLs (http, https, ftp). Paste one URL per line to get scheme-free links instantly. In your browser.

Calculate the sum of a line-separated list of numbers. Paste values and get the total instantly. Works fast in your browser.

Convert teaspoon amounts to grams instantly. Choose your ingredient for accurate density-based results. Free, fast, and browser-based.

Invert the case of every letter. Lowercase becomes uppercase and uppercase becomes lowercase. Works fast in your browser.

Calculate the total character length of your text instantly. Paste any text and get an exact count in one click.

Reverse text line by line. Paste your content and get reversed output instantly. Use it in your browser for quick, copy-ready results.

Trim whitespace before and after each line of text. Clean up lists instantly in your browser. Works fast in your browser.

Trim each line to a maximum character length. Set a line length count and truncate all lines instantly. In your browser.

Trim each line to a maximum number of words. Set a word count and truncate all lines instantly. Works fast in your browser.

Convert tab-separated values to CSV instantly. Handles commas, quotes, and embedded newlines with proper RFC 4180 CSV quoting. Free and browser-based.

Convert TSV data to a JSON array of objects instantly. Headers become keys, rows become records. Fast, free, and browser-based.

Convert TSV data to XML instantly. Headers become element tags, rows become XML nodes. Special characters are escaped automatically in your browser.

Convert TSV data to YAML instantly. Paste tab-separated values and get a clean YAML list of mappings. Fast, free, and browser-based.

Count unique words in your text instantly. Paste content and get an exact unique word total in one click. In your browser.

URL decode text and URLs line by line. Paste encoded data and get readable output instantly. Works fast in your browser.

URL encode text and URLs line by line. Paste data and get encoded output instantly. Use it in your browser for quick, copy-ready results.

Calculate your overall course grade from weighted assignments, exams, and projects. Enter grade and weight pairs to get your final percentage and letter grade.

Count the total number of words in your text instantly. Paste any content and get an exact word count in one click.