Step 1
Add images (PNG/JPG/WebP).
Image Resizer
Resize PNG, JPG, and WebP by width/height or a single long edge — all in your browser.
Drag & drop your files here, or
browse
Scale
Notes
- Resize by width, height, or percentage — on device.
- Maintain aspect ratio automatically when needed.
- Export PNG, JPG, or WebP; preview results instantly.
- Upscaling can soften details; keep moderate factors for best quality.
How to use Image Resizer?
Step 2
Set a long‑edge size (e.g., 1600 px).
Step 3
Click “Resize” and download.
Image Resizing: Frequently Asked Questions
Are my files uploaded to a server during processing?
No. Resizing happens locally in your browser; files remain on your device.
Will resizing affect image quality?
Downsizing usually keeps images sharp; upscaling can soften details. The tool uses smart interpolation to minimize quality loss.
Can I lock aspect ratio?
Yes. Enable aspect ratio lock and set one dimension; the other is calculated automatically.
Can I resize to exact pixel dimensions?
Yes. Enter width and/or height in pixels. Enable aspect-ratio lock to avoid distortion, or disable it for exact dimensions when layout requires a fixed size.
What happens when I upscale an image?
Upscaling adds pixels via interpolation and can soften detail. For best results, limit the scale factor and start from the highest-quality original you have.
Recommended Tools
Convert images to or from AVIF in your browser. Smaller files with strong quality; PNG/JPG/WebP input. Private, on-device processing.
Convert HEIC photos to JPG or PNG directly in your browser. Private, on-device conversion with batch support and excellent visual quality.
Merge PDFs privately in your browser. Drag to reorder, then export a clean combined file. Limits depend on your device; no uploads.
About these formats
What is a PNG (Portable Network Graphics) file? .png
PNG is a lossless image format that supports transparency (alpha). It preserves crisp edges and exact pixels, making it ideal for UI graphics, logos, and screenshots.
Best for: graphics with text, sharp lines, transparency. Trade‑off: larger than JPEG/WebP for photos.
MIME: image/png
What is a JPG (Joint Photographic Experts Group) file? .jpg,.jpeg
JPEG is a lossy format optimized for photographs. It achieves small file sizes by discarding fine detail that is hard to perceive.
- Best for: photos.
- Limitations: no transparency; re‑saving repeatedly can introduce artifacts.
MIME: image/jpeg
What is a WebP (Web Picture) file? .webp
WebP is a modern image format offering both lossy and lossless compression, usually producing smaller files than JPEG and PNG at similar quality.
Best for: the web when you want smaller images. Notes: older tools may lack WebP editing/export support.
MIME: image/webp
Your Data, Our Priority
All processing happens locally in your browser. We do not upload or store your files.