Image Compressor & Converter

You can upload JPEG, PNG, WebP, GIF, BMP, and AVIF files (any format your browser can display). Output can be saved as JPEG, PNG, or WebP.

Grayscale converts each pixel to a shade of grey based on its luminance — you get a full range of grey tones from near-black to near-white. Monochrome (true black-and-white) maps every pixel to either pure black or pure white with no grey in between, creating a high-contrast, graphic look.

For web images, 75–85% quality is the sweet spot: files are noticeably smaller with no visible quality loss. For thumbnails or social media previews, 60–75% works well. For print or archiving, use 90%+. Note that PNG output is always lossless, so the quality slider does not apply.

PNG uses lossless compression, meaning it stores every pixel exactly. JPEG uses lossy compression that discards imperceptible detail to achieve much smaller sizes. Converting a JPEG to PNG therefore makes the file larger. To reduce a JPEG's file size, keep the output format as JPEG and lower the quality slider.

WebP is a modern image format developed by Google that achieves 25–35% smaller file sizes than JPEG at the same visual quality. It is supported by all modern browsers. Use WebP when you want the smallest possible file for web delivery.

The tool accepts images up to 50 MB. Very large images (e.g. high-resolution photos over 6000×6000 px) may take a few seconds to process, since the Canvas API works entirely in your browser's memory.

Yes — completely. Your image never leaves your device. No data is transmitted to any server, no analytics are collected on the image content, and nothing is stored after you close the tab.