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10 free tools

Free Art & Paint Tools

From painting a room to painting on canvas: work out how much paint you need, mix and match colours, and prepare your photos for a painting.

Paint CalculatorEnter your rooms, subtract doors and windows and find out how much paint you need in litres or gallons, kilograms or pounds, and which cans to buy.RAL Colour ChartBrowse RAL Classic colours by family, search by code or name, copy approximate HEX/RGB/CMYK values and find the RAL code closest to your own colour.Color Harmony GeneratorPick a base color, build harmonious palettes from color-wheel rules, check contrast and export them as HEX or CSS variables.Palette from ImagePick a photo or a painting and get its dominant colours, each with its share of the image and its HEX and RGB code.Paint by Numbers GeneratorTurn a photo into simple colour regions and get a printable template with a number in every region plus a colour key.Drawing Grid MakerSplit your reference photo into cells that match the grid on your canvas, so proportions transfer accurately.Value CheckerSee the light–dark structure of a photo or painting and check whether the composition works in values, regardless of colour.Paint Color MixerPreview a mix before you squeeze out acrylic, oil or gouache: choose paints and parts, and the tool estimates the pigment mix with a physical model.Canvas SizesSee common canvas, frame and paper sizes in inches and centimetres, and work out the aspect ratio, the pixels you need for a print and whether your photo fits.Artwork PricingGive your paintings consistent prices: calculate three common methods side by side, add gallery commission and tax, and see the result as a price range.

For walls and home decorating

The paint calculator works out wall and ceiling area minus doors and windows and tells you how much paint you need for your coats, including a waste allowance; it suggests a can combination and, with prices you enter, the cost. The RAL colour chart lists all RAL Classic colours with HEX, RGB and approximate CMYK values and finds the nearest RAL code to any colour. Screen colours are approximate – check an official physical colour card before ordering.

Mixing, harmony and palettes

The paint colour mixer combines acrylic or oil paints by parts and shows a realistic result, a colour mixing chart and recipes for a target colour. The colour harmony generator builds complementary, analogous and triadic palettes from a base colour. Palette from image extracts the dominant colours of a photo with their percentages – a quick way to find inspiration for design, interiors or painting.

Studio tools for painters

The paint-by-numbers generator turns a photo into numbered regions with a colour legend. The drawing grid tool overlays a grid on a reference photo so you can transfer proportions to canvas, and the value checker reveals the light–dark structure of a composition. The canvas sizes chart covers common canvas, frame and paper sizes, and the artwork pricing calculator gives a consistent price range for your work. Your images are never uploaded; everything runs in your browser.

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