N Nyxbo

Image Compressor / Resizer

Upload an image, set new dimensions and quality, and download the optimized version. Everything stays on your device — no uploads, 100% private.

How to Compress & Resize Images Online

Use our free tool to reduce image file size and adjust dimensions in three easy steps:

  1. Upload your image – Click or drag & drop a JPEG, PNG, or WebP file.
  2. Adjust settings – Enter new width/height (or leave blank to keep original). Change the output format and quality slider. Check "Lock aspect ratio" to prevent distortion.
  3. Download – Click "Compress & Resize", then "Download Processed Image". The optimized file is saved directly to your device.

Why Use Our Image Compressor?

  • 100% free & no sign‑up – Use as many times as you want.
  • Privacy first – All processing happens in your browser; no images are ever uploaded.
  • Works offline – Once the page is loaded, you can compress images without an internet connection.
  • Multiple formats – Convert between JPEG, PNG, and WebP while resizing.
  • Real‑time preview – See exactly how the compressed image looks before downloading.

Frequently Asked Questions

How do I compress an image without losing quality?

Use the quality slider to balance file size and quality. Values above 85% produce near‑lossless results for JPEG. For PNG, quality is lossless.

Is my image uploaded to a server?

No. Everything happens locally in your browser. Your image never leaves your device.

Can I resize an image and keep the original proportions?

Yes, keep the "Lock aspect ratio" checkbox enabled. When you change width or height, the other dimension adjusts automatically.

What image formats are supported?

You can upload JPEG, PNG, WebP, and most common image formats. Output can be saved as JPEG, PNG, or WebP.

What’s the maximum image size I can process?

There’s no hard limit, but very large images (e.g., over 50 megapixels) may be slow depending on your device. For typical photos, performance is instant.

Can I convert WebP to JPEG?

Absolutely. Upload your WebP image, select JPEG as the output format, and download the converted file.

Does the tool work on mobile?

Yes, the interface is fully responsive and works on smartphones and tablets.

How much can I reduce the file size?

It depends on the original image and quality setting. You can often reduce a 5 MB photo to under 500 KB with good quality.

Is there any watermark added?

No. Your processed image is exactly as you see it — no watermarks, no branding.

Can I compress multiple images at once?

This tool processes one image at a time. For batch processing, you may need dedicated software, but you can quickly repeat the steps for multiple images.

If you’re working with images or documents, these Nyxbo tools may also help: