High-Precision Tools.
Zero Signup. Instant Results.

Measure real-world objects on your screen at true mm/cm/inch scale — stays accurate even when you zoom.

Get matching dimensions for any ratio (1:1, 4:5, 9:16...) or calculate a center-crop for your image.

Find the max print size your image supports, or how many pixels you need for a target size and quality.

Resize and compress an image right in your browser, preview the result, and download it — nothing is uploaded.

Pick any color and get HEX, RGB, HSL, HSV values instantly. Generate complementary, analogous, and triadic palettes with CSS/Tailwind/JSON export.

See how strong a password is and how long it would take to crack — checked 100% in your browser.

Find your daily calorie needs (TDEE) and a suggested macro split, then log what you eat against it.

Estimate your due date, current week of pregnancy, or your next ovulation and fertile window.

Test regular expressions live with match highlighting, capture groups, and a quick-reference cheatsheet.

Build, validate, and parse cron expressions with human-readable explanations and execution previews.

Convert between the three formats instantly — nothing is uploaded, it all runs in your browser.

Create customizable QR codes for links, Wi-Fi, vCard contacts, email & text with high-res PNG & SVG downloads.

Convert images to PDF, merge multiple PDFs into one, or split a PDF into individual pages — 100% in your browser, zero upload.

Convert between 80+ units across length, weight, temperature, area, volume, speed, time, data storage, energy, and pressure — instantly in your browser.