Set pixel width and height or use a preset. Export as PNG so alpha channels survive.
SnapResizerPro
Bigger batches and a human on email when you’re stuck. We’ll say if we can help.
or, drag and drop images here
Max file size: ~5 MB per image (browser limit). Contact us for larger workflows.
Or drag and drop PNG images here. Max about 5 MB per file (browser limit). Opens the editor with PNG as the export starting point. Skip upload
SnapResizer
PNG
Steps
Shrinking usually looks crisp. If you upscale, expect softness. Keep PNG selected on export when you care about transparency.
Details
PNG is still the default when you need a crisp edge on a non-rectangular shape. E-commerce cutouts, UI assets, and screenshots with text often land here first.
The honest tradeoff is file size. A full-photo PNG can be huge next to a tuned JPEG or WebP. Many teams resize first to the display size they need, then decide if another format is worth testing.
Set dimensions, export, and move to the next step.
Platforms rarely want a raw rectangle. A 1200×630 og image and a 1080×1350 portrait post are different animals. Presets save you from memorizing numbers.
If the subject is off-center, pair resize with our crop tool before you export. That beats stretching a wide photo into a tall frame.
Set dimensions, export, and move to the next step.
Photos without transparency usually shrink further as JPEG or WebP at a similar look. Try our format comparison page if you are tuning a product gallery.
You can still start from PNG. Resize to the final pixel dimensions here, then export as JPEG or WebP in the same editor if you want to experiment.
Set dimensions, export, and move to the next step.
Why people use this page
Upload, set size, download. You should not need a video tutorial for the basics.
We call out transparency and format choice in plain language so you are not guessing what the exporter will do.
If you have twenty storefront images that all need the same long edge, the editor can keep settings consistent.
Long-form sections and FAQs give readers real answers, which also plays nicer with quality guidelines for display ads.
Practical answers about transparency, quality, and when to pick another format.
Not if you export as PNG. If you switch the output to JPEG, transparency is removed and the empty areas get filled with a background color you choose.
Changing pixel dimensions rewrites the image. Shrinking throws away detail in a controlled way; enlarging guesses new pixels. The file can still be PNG with transparency, but it is not the same as a lossless re-encode at the original size.
PNG compresses patterns well but struggles on noisy photos. A smaller canvas helps, yet a busy photo may still beat a JPEG on byte size. Try WebP if the platform allows it.
Match the largest size you actually render. If CSS shows the image at 800px wide, a 4000px source mostly wastes bytes. Resize to twice the display width if you want Retina sharpness, not more unless you have a reason.
Yes. Heavy folders may feel slower than on a laptop because the work runs on your device. Start with a few files if the tab feels tight on memory.
Instagram accepts PNG uploads, but the app recompresses on its side. Resize to their recommended dimensions first so you are not relying on their scaler more than needed.
Keep sharp text at integer scale factors when you can. Odd fractional scales can soften small type. Export at the size it will display when possible.
Yes. Finish dimensions here, then use the output format option to try WebP. WebP supports transparency in modern browsers.
For resize, crop, flip, and rotate, processing stays in your browser tab. We are not using your file as training data or keeping a copy on our disk for that workflow.
About 5 MB per file is a practical limit for most users. The real ceiling is your device RAM, especially with many images at once.
Your browser sets the download name. Many people append -800w or similar so exports do not overwrite the original.
Some PNGs from phones carry orientation metadata. Our editor works from the decoded pixels you see in preview. If something looks sideways, rotate in the editor before export.
Same idea: new width and height, optional resampling. We focus on fast web prep instead of layers and print color profiles.
True vector SVG is smaller when you have clean paths. PNG fits when you only have a raster logo or need pixel-perfect previews inside a legacy CMS.
Other tools on the site work the same way: open, edit, download.
Open the editor with PNG selected, drop your files, and set the output size in one sitting.
Open PNG resize editorSnapResizer
Editor preview
Local processing in your browser