Photo Resizer
Resize photos to specific dimensions. Free, fast, and no server uploads.
How to use
- 1Drop a photo or click to browse.
- 2Pick a preset size or enter custom dimensions. Lock the aspect ratio to avoid distortion.
- 3Download the resized image.
Photo Resizer
Resize images instantly in your browser
Drag & drop an image or click to browse
PNG, JPEG, WebP, GIF, BMP, TIFF
Resizing changes the pixel dimensions of your image. Use it to shrink photos for email, social media, or web layouts where large dimensions aren't needed.
The aspect ratio lock keeps your image proportional. Unlock it only when you need a specific width and height regardless of distortion.
Resize by pixels, aspect intact
We scale via Canvas with high-quality smoothing and lock aspect ratio to avoid distortion. Choose by max width/height (e.g., 1920 for HD screens) or exact pixels for avatars and store listings. Sharpness after downscale is typically excellent; upscale beyond original adds softness, not detail.
For web vs print
Web: 1280–1920 px width covers most layouts and is far smaller than 6000 px phone originals. Print: compute pixels = inches × DPI (e.g., 8×10" at 300 DPI = 2400×3000 px). Use our image-resolution converter to sanity-check.
Batch and format tips
Resize first, then compress the opposite order wastes work. For many images, do one representative file, note the dimensions, then repeat; browser resizers process one at a time for accurate previews.
Frequently Asked Questions
Distort?
No aspect locked unless you choose otherwise.
Upscale quality?
Upscaling invents blur; shoot larger instead.
Private?
Yes Canvas locally.
Quick Answer
Set max width like 1920 px, drop a photo, keep aspect ratio, and download. Resize first, then compress order saves bytes.
What is this tool?
A photo resizer changes how many pixels wide or tall a picture is. A phone photo is often 4000 pixels wide, but a website or email needs only 1920 or 1280. Making it smaller makes the file much smaller and faster to load. You need this when a photo is too big for a form or slow for a website. Our tool scales with Canvas, keeps the same shape so it does not stretch, and saves locally.
How it works
We use your browser’s FileReader and Canvas APIs. The file is read into memory, decoded to pixels, and then re-encoded to the target format. For lossy formats we apply quality, for lossless we keep all pixels. The preview and size are computed from the same bytes you will download, so what you see is what you get. No upload happens the bytes live only in your tab until you close it, which keeps it private and fast even on slow internet.
How to use 4 steps
- 1Drop the image onto the box or click to browse.
- 2Pick settings if shown (quality or size) and watch preview.
- 3Check the estimated size and look for blurry text.
- 4Click Download and verify the result opens everywhere.
Specs & formulas
| Item | Detail |
|---|---|
| Input | PNG, JPG, WebP, HEIC, SVG depending on tool |
| Output | Target format with correct background handling |
| Privacy | Local Canvas, no server |
| Tip | Resize first if image is huge |
Quick reference
3 worked examples
1. Share to friend
Friend cannot open your file.
Convert HEIC/WebP to JPG → opens everywhere
2. Email limit
File too big for email.
Convert PNG photo to JPG 80 → halves size
3. Site upload
Site wants specific format.
Convert to required format locally, no re-upload to cloud
Mistakes to avoid
- Converting a photo to PNG makes it bigger use JPG/WebP for photos.
- Converting PNG clear parts to JPG turns them white expect that.
- Re-converting many times adds blur for JPG keep original.
Pro tips
- Keep original and convert copies.
- For email, prefer JPG 80; for logos, keep PNG.
- Check transparent parts after conversion.
When to use it
Sharing iPhone photos, fixing uploads that reject a format, preparing logos for print, and shrinking files for email. Because our converters are local, you can fix formats even on slow internet and keep private photos private.
Frequently Asked Questions
Are images uploaded?
No local Canvas and FileReader. Close tab to clear.
Will quality drop?
JPG/WebP lossy may, PNG lossless keeps all. Convert from original when possible.
What about transparency?
PNG/WebP keep it, JPG flattens to white. Expect white background for JPG.
Can I batch?
One at a time for honest preview. Repeat for each file.
Why convert at all?
Compatibility some apps only accept JPG or PNG or PDF.