Popular tools
The handpicked shortlist — the tools most people land on first. Every tool runs locally in your browser; nothing is uploaded.
Screenshot Mockup
Turn raw screenshots into polished mockups with backgrounds, window chrome, 3D tilt and text — free, in your browser. Export PNG, JPEG, SVG. Updated 2026.
App Icon Generator
Free app icon generator for 2026. Drop one icon, get every size for iOS, macOS, Android, Chrome and the favicon set — packaged as a ZIP. No upload, runs in-browser.
Markdown Preview
Free online markdown previewer (2026). Drop multiple .md files, reorder them, switch between four reading themes and read continuously. Renders locally — nothing uploaded.
BMI Calculator
Free BMI calculator for 2026. Enter your height and weight in metric or imperial units to see your Body Mass Index, healthy weight range and category — instantly, in your browser.
BMR Calculator
Free BMR calculator using the Mifflin–St Jeor equation. Enter your height, weight, age and sex to find how many calories your body burns at rest. Updated 2026.
TDEE Calculator
Free TDEE calculator. Find how many calories you burn per day at your activity level using Mifflin–St Jeor BMR plus an activity multiplier. Updated 2026.
Calorie Calculator
Free calorie calculator for 2026. Find daily calorie targets for weight loss, maintenance and gain at sustainable rates. Uses Mifflin–St Jeor + activity multiplier.
Macro Calculator
Free macro calculator. Enter your stats and pick a split (Balanced, Low fat, Low carb, High protein, Keto) to get your daily protein, carbs and fat in grams. Updated 2026.