Home / Free Image Compressor
Reduce image file sizes in your browser. Select images, choose a format and quality, then download the results.
Choose JPG, PNG or another browser-supported image, set the quality and output format, then process it. JPEG and WebP quality settings can reduce file size, while PNG is useful when you need lossless output or transparency. Compare the downloaded result with the original before replacing your source image.
QR Code Generator · Image Compressor · Image Resizer · Word Counter · Password Generator · PDF Compressor · HEIC to JPG
Yes. You can use this Fileswin tool without creating an account. The processing is performed in your browser where supported.
These tools are designed to work locally in your browser. QR generation and password generation do not require sending your entered content to Fileswin servers. Avoid using shared devices for confidential work.
For cropping, colour adjustments and other desktop editing tasks, see GramFile’s selection of photo editors for Windows. An installed editor can complement this quick browser-based compressor when you need more control over an image.
Image compression can reduce upload times and storage use, but the best settings depend on the image. JPEG is useful for photographs, PNG is often suitable for graphics that need transparency, and WebP can provide efficient web delivery where supported. Keep an original copy before replacing an image.
There is no single ideal quality setting. Start with a moderate setting, compare the preview and file size, and increase compression only while visible artifacts remain acceptable. For website performance, also resize oversized images to the dimensions at which they will actually be displayed.
Browse related image tools.