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Plan lab dilutions with pipette volumes, 1:N ratio dilutions, and serial dilution schemes. Get C₁V₁=C₂V₂ stock aliquots, sample and diluent volumes, and step-by-step bench procedures in µL, mL, or L. Free, browser-based.

Resize images in your browser with custom dimensions, aspect-ratio lock, and format export.

Convert images between PNG, JPG, WebP, AVIF, and BMP right in your browser, with quality control and transparency handling.

Convert HEX color codes to HSL and HSLA values with hue, saturation, lightness, and a live preview.

Convert RGB screen colors to CMYK print values with cyan, magenta, yellow, and key (black) percentages.

Convert CMYK print color values to on-screen RGB and HEX for web and digital design.

Design layered CSS box shadows with live preview and copy-ready CSS, inline styles, and Tailwind classes.

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

Estimate YouTube ad revenue from views and RPM. See daily, monthly, and yearly earnings with monetized view rate adjustments.

Convert CSV spreadsheets to JSON arrays with header detection, type parsing, and dot-key unflattening.

Encrypt and decrypt text with AES-GCM or AES-CBC using a passphrase or hex key, entirely in your browser.

Decrypt AES-GCM or AES-CBC JSON payloads using the passphrase or hex key that was used to encrypt them.