Image Compressor
Compress and resize images in your browser. Adjust quality, change format, and reduce file size — nothing is uploaded to any server.
Drop an image here or click to browse
PNG, JPG, GIF, WebP, BMP — max 20 MB
About Image Compression
This tool compresses images entirely in your browser using the Canvas API. No data is sent to any server — your images stay completely private.
JPEG: Best for photographs. The quality slider controls lossy compression — lower values mean smaller files but more artifacts. 70-85% is typically a good balance.
WebP: Modern format with superior compression. Produces ~25-35% smaller files than JPEG at equivalent quality. Supported by all modern browsers.
PNG: Lossless format — no quality slider. Best for graphics, icons, and images with transparency. File size depends on image complexity, not a quality setting.
Resizing: Set max width and/or height to downscale images. The tool never upscales — if the original is smaller than the specified dimensions, it keeps the original size.