About Image Optimizer
The Image Optimizer combines image compression, format conversion, and resizing into a single browser-based tool - replacing the need to use separate tools for each step. Upload any JPG, PNG, WEBP, GIF, or BMP image and configure all three transformations at once: change the output format, adjust the quality level, and set maximum dimensions. The result is immediately previewed alongside the original so you can compare before downloading.
Choose your output format from JPG, PNG, or WEBP. JPG and WEBP support a quality slider from 10% to 100% - higher quality means larger file size. PNG is lossless and produces the sharpest result at the cost of larger files, making it ideal for logos, icons, and screenshots with flat colors or text. WEBP typically achieves the best compression-to-quality ratio for photographs and is the recommended format for modern websites.
The resize controls let you set a maximum width and height. With "Shrink only" mode (the default), the tool only scales the image down - images smaller than your limits are left at their original size. With "Exact dimensions" mode, the image is forced to exactly the dimensions you specify regardless of the original size. Both modes preserve the aspect ratio unless you choose exact dimensions.
The before/after preview shows the original file size and pixel dimensions alongside the optimized result, with a savings badge showing how many kilobytes were saved and the percentage reduction. If the output is larger than the input (which can happen when converting PNG to JPG at high quality), the badge highlights this in amber so you can adjust settings.
Common use cases include optimizing product photos for an e-commerce store, reducing image sizes before uploading to a CMS, converting screenshots for web use, and batch-preparing images for a portfolio or marketing campaign.