Image Resizer & Compressor
Resize images by dimension or percentage and compress them to PNG, JPEG or WebP.
Everything happens locally in your browser — images are never uploaded anywhere.
Resize images by exact dimensions or by percentage, and compress the output to PNG, JPEG, or WebP — useful for shrinking file sizes before uploading, or fitting an image to a specific size requirement without installing photo-editing software.
All processing happens locally in your browser, so images are resized and compressed on your own device without being uploaded anywhere.
Frequently asked questions
- Which format gives the smallest file size?
- WebP generally produces the smallest files at a given quality level for photos, followed by JPEG; PNG is best reserved for images needing transparency or sharp lines like screenshots and logos.
- Will resizing reduce image quality?
- Reducing dimensions doesn't itself reduce quality (it can even look sharper at a smaller size), but increasing compression to shrink file size does trade off some visual quality — adjust the setting to find the balance you need.
- Can I resize without changing the aspect ratio?
- Yes — lock the aspect ratio and enter either a new width or height; the other dimension is calculated automatically to avoid distortion.