Calculate your Body Mass Index with metric or imperial units. See your BMI, weight category, and position on a visual scale.

Calculate age in years, months, days, and total time units between any two dates. Perfect for birthdays and milestones.

Calculate exact date differences in years, months, days, and more. Add or subtract days, months, or years from any base date.

Live countdown to any date and time with seconds precision. Count up from past dates and save your favorite targets.

Floating panel to simplify ratios, find missing values, visualize with bars, and insert results anywhere.

Floating panel to calculate print dimensions, DPI, aspect ratio, and fit for images. Insert results anywhere.

Floating panel to scale images with aspect ratio lock, showing dimensions, scale factor, megapixels, and file size.

Floating panel to calculate standard deviation, variance, mean, and summary stats with sparkline visualization.

Floating panel to calculate golden ratio values, Fibonacci sequence, and visual rectangle/spiral representation.

Display real-time Unix timestamp with date, time, and one-click copy.

Auto-refresh pages at custom intervals with countdown timer and controls.

Adjust page scrolling speed and smoothness with sliders and per-site persistence.

Force all links to open in a new tab with security attributes and per-site toggle.

Enable drag-and-drop on pages that block it with one-click toggle.

Force lazy loading on all images with configurable threshold and per-site memory.

Double-click any word to search it with Google, DuckDuckGo, Wikipedia, and more.

Middle-click and move mouse to scroll pages with customizable speed and sensitivity.

Disable hover cards, tooltips, and popups on links, images, and usernames.

Check page title length against SEO recommendations with visual indicators.

Check meta description length against SEO recommendations with visual indicators.

Count internal vs external links with summary, percentages, and export.

Count external vs internal links with summary, percentages, and visual highlighting.

Highlight rel="nofollow" links with visual indicators and count statistics.

Extract and analyze anchor texts from links with word frequency and CSV export.