Image Resizer
Set a width and height in pixels and get the image back at those exact dimensions. Like the compressor, this runs entirely in your browser, so your file stays on your device.
Because the dimensions are applied exactly as entered, the aspect ratio is not preserved for you. If the new proportions differ from the original the image will stretch, so it is worth working out the matching height for your chosen width first — divide the original height by the original width and multiply by the new width.