Image Resizer
Resize images to exact pixel dimensions or a percentage.
- Runs in your browser
- No upload required
- Free, no signup
Drag & drop an image to resize
or
JPG · PNG · WEBP · GIF
- File
- Format
- Size
- Original
Output will be —.
Social media
Common widths
Resized image ready
Your image is processed locally in your browser and is not uploaded to our server.
A photo straight from a camera or phone is almost never the size you need. This image resizer lets you type exact pixel dimensions, scale by percentage, or jump straight to a preset for the platform you are posting to.
Aspect ratio locking keeps your subject from looking stretched: change the width and the height follows automatically. The live preview shows you the result before you download it in JPG, PNG or WEBP.
How to use this tool
- Choose an image, or drag and drop it into the upload area.
- Check the original dimensions shown under the preview.
- Leave "Maintain aspect ratio" ticked, then type a new width — the height updates automatically.
- Or pick a preset such as Instagram Post (1080 × 1080) or YouTube Thumbnail (1280 × 720).
- Use the zoom percentage mode if you prefer scaling, then press Resize and download in your preferred format.
Frequently asked questions
Will resizing distort my image?
Not when "Maintain aspect ratio" is enabled — the second dimension is recalculated for you. Untick it only when you deliberately need a stretched or squashed result.
Can I make an image bigger?
Yes, you can upscale, but no browser tool can invent detail that was never captured. Moderate upscaling works well for icons and screenshots; for large enlargements a dedicated AI upscaler will give better results.
What are the correct social media sizes?
The presets are kept in one configuration object in the tool source, so they can be updated as platforms change their recommended dimensions. Current values include Instagram Post 1080 × 1080, Instagram Story 1080 × 1920, YouTube Thumbnail 1280 × 720 and LinkedIn Banner 1584 × 396.
Which output format should I pick?
Use JPG for photographs, PNG when you need transparency or crisp text, and WEBP for the smallest files on modern browsers.
Is there a file size limit?
The tool accepts images up to 25 MB each, which comfortably covers phone and mid-range camera photos.