Free alt text generator for images

Calculate the APCA contrast level of two colors.

Get color inspiration for your projects. Choose from 20+ themes, see color variations, and download your swatches in a PDF doc.

Input a color and get transparency variations. Select a variation to copy its RGBA value to your clipboard.

Calculate a website vistior-to-conversion value as a percentage. Download the result as an image.

Compare conversion rates between two data sets. Download the results as an image.

Create an HTML email signature — no coding experience required.

Upload a logo image and convert it to black, white, or a custom color, and then download the recolored logo.

Calculate NPS based on the total number of Promoter, Passive, an Detractor scores from your survey.

Calculate the percentage increase (or decrease) between two numbers.

Generate a QR code based on an URL or text. Download the QR code as a high-quality PNG or SVG file.

Test the readability of your text against Flesch-Kincaid grade level and reading ease metrics. Get recommendations for improving your writing.

Calculate the increase or decrease between two numbers.

Quickly find the time for any city in the world.

Create a custom UTM link and copy it to your clipboard.

Check the contrast between a foreground text color and a background color. Uses WCAG standards to determine whether the contrast level is sufficient.

Get hero section title, description, and CTA button recommendations for your website.