Photoshop is professional software sold by paid subscription, which is a lot to take on if all you need is to resize, crop or convert a photo. Free browser-based tools handle those quick jobs on your own device, with no install, no account and no upload.
Free online image resizer. Change an image to exact pixel dimensions or by percentage, lock the aspect ratio, and download the result. Private.
Open Image Resizer → Free toolFree online image cropper. Drag a crop box over your photo to keep only the part you want, then download the cropped image. Nothing uploaded.
Open Image Cropper → Free toolFree grayscale image converter. Turn any photo black and white in your browser using true luminance values, then download the result. Private.
Open Grayscale Image Converter →Photoshop is the industry standard for a reason: layers, retouching, compositing and color work that no quick web tool will replace. But it is paid subscription software that has to be installed, and reaching for it to resize an image to exact pixels, crop out a region or convert a photo to black and white is overkill. Single-purpose browser tools do each of those jobs in seconds, processing the image locally on your device.
The browser tools win when the task is small and the machine is not yours or not set up: resizing a picture to a required dimension, cropping a screenshot, converting a photo to grayscale using true luminance values. There is nothing to install or license, the file never leaves your device, and the result downloads immediately. For real design and retouching work, Photoshop remains the right tool; for the quick jobs, you do not need it.
No. Each tool runs in your browser with nothing to download or license.
No. Resizing, cropping and grayscale conversion all happen locally on your device.
No. They cover quick single tasks like resize, crop and convert. Layered editing and retouching still belong in a full editor.