Resize by pixels or percentage, keep aspect ratio, pick format and quality – all in your browser.
What is the Image Resizer?
Resize photos to the exact size you need for websites, social media, online forms and email. This image resizer changes the width and height of JPG, PNG and WebP images, keeps the aspect ratio if you want, and lets you choose the output format and quality to make the file smaller.
Everything runs in your browser using HTML canvas, so your photos are never uploaded – ideal for ID photos, documents and personal pictures.
How to use the Image Resizer
- Choose an image from your phone or computer.
- Enter a new width or height (or a scale percentage) and choose the format and quality.
- Click Resize, check the preview and download.
Recommended image sizes
| Use | Size (px) |
|---|---|
| Blog featured image | 1200 × 630 |
| Instagram post | 1080 × 1080 or 1080 × 1350 |
| Instagram / WhatsApp story | 1080 × 1920 |
| YouTube thumbnail | 1280 × 720 |
| Facebook cover | 820 × 312 |
Tips for small, sharp images
- Resize before uploading to WordPress – huge photos slow your site.
- Use WebP or JPG at 75–85% quality for photos, PNG for logos and screenshots.
- Avoid enlarging small images a lot – it makes them blurry.
Frequently asked questions
Does resizing reduce quality?
Making an image smaller keeps it sharp; enlarging can make it soft.
How can I get under 100 KB?
Reduce the width (for example to 1000 px) and use JPG or WebP with 60–75% quality, or use our Image Compressor.
Are my photos uploaded?
No. Resizing happens on your device.
Can I resize many images at once?
Currently one at a time.
This image resizer is 100% free, needs no signup and works on phones, tablets and computers. Your data is processed in your browser and never uploaded.
Last updated: · By NodifyTech