Tools starting with I

Convert ICO images to JPG in your browser, with no upload and no watermark.

Convert ICO images to PNG in your browser, with no upload and no watermark.

Compare healthy weight ranges for your height across several established formulas.

Check the alt text on a page's images, including the difference between missing and decorative.

Arrange up to 30 images into a grid, with adjustable gaps and background.

Pick colours from an image by clicking, with an adjustable sample area and hex, RGB and HSL values.

Reduce image file size with an adjustable quality setting and a side-by-side before and after comparison.

Convert images between JPG, PNG and WebP, with quality control for the lossy formats.

Crop an image by dragging a selection, with optional fixed aspect ratios such as 1:1 and 16:9.

Identify an image's real format from its bytes, with dimensions and print quality.

See an image's tonal distribution per channel, and how much detail is clipped.

Place one image over another with position, size, opacity and blend mode, then export a PNG.

Resize an image to exact pixel dimensions or a percentage, with the aspect ratio locked by default.

Check an image's size, dimensions, format and filename against what a web page actually needs.

Turn an image into a data URL for inlining, or decode a data URL back into an image.

See what an amount is worth after inflation over a number of years.

Work out bread ingredient weights from baker's percentages, including hydration, salt, yeast and starter.

Resize a photo to Instagram's post, portrait, landscape, story or reel sizes.

Invert an image's colours to produce a photographic negative.

Create a professional invoice with line items, tax and totals, and download it as a PDF.

Convert a date between ISO 8601, Unix time, week dates and ordinal dates.