Ücretsiz çevrimiçi araçlar

Design CSS buttons with colors, borders, shadows, and hover states. Copy ready-to-use CSS, HTML, and Tailwind classes.

Prepare analytical standard solutions from solid or stock. Calculate mass to weigh, stock aliquot for dilution (C₁V₁=C₂V₂), and verify actual molarity. Step-by-step lab procedure for volumetric flasks. Free, browser-based.

Ideal gas law calculator free — solve PV=nRT for pressure, volume, moles, or temperature. atm, kPa, L, K, °C. No signup.

Convert JSON into clean, readable YAML with adjustable indentation — entirely in your browser.

Calculate telescope magnification from focal lengths. Get exit pupil, true field of view, resolving power, and light grasp. Find eyepiece or scope FL for target magnification. Free, browser-based.

Calculate maximum beam deflection and bending moment for simply supported, cantilever, and fixed-end beams under center point loads or uniform distributed loads. Enter span, E, I, and load — results in mm or inches with L/360 and L/250 limit checks. Free, browser-based.

Free Open Graph and Twitter Card preview — paste HTML or fetch a URL to see Facebook and X social previews, plus a meta tag checklist. No signup.

Calculate rock bulk density from mass and volume, rectangular blocks, or drill cores. Porosity from grain density. Compare to typical granite, basalt, limestone, and more. Free, browser-based.

Free social media crop pack — crop one image for Instagram, YouTube, LinkedIn, X, and more. Preview every size and download a ZIP. No signup.

Convert RGB and RGBA channel values into HEX color codes with a live preview.

Free map veto and ban/pick helper — run CS or Valorant-style sequences, ban and pick maps in order, and copy the final veto log.

Trace the network path to a hostname or IP. Shows each hop, round-trip times, and whether the route completed.