PixFlow · Editing
Resize, crop, prepare a portrait. Three simple moves — provided you know which one applies. Everything runs in your browser, with no software to install and no photo to upload.
In exact pixels or as a percentage, with the aspect ratio preserved.
→Standard 1:1, 4:3 and 16:9 ratios for a clean result on any surface.
→Automatic circular crop for LinkedIn, CVs and professional platforms.
→The two words get mixed up constantly, and that is where most stretched or badly framed images come from. Resizing keeps the whole image and changes the pixel count. Cropping keeps the resolution and cuts out a portion: whatever falls outside the frame is gone.
The practical rule: if the aspect ratio you want differs from the original's, you must crop. Forcing a resize under those conditions squashes the picture. To turn a landscape photo into an Instagram square, only cropping gives a correct result.
There is no need to memorise dozens of formats. These cover almost every everyday use.
| Use | Dimensions | Note |
|---|---|---|
| Profile picture | 800 × 800 | Square. Displayed as a circle, so leave room around the face. |
| Instagram square | 1080 × 1080 | The safest format in the feed. |
| Instagram story | 1080 × 1920 | Vertical 9:16, full screen. |
| Website banner | 1920 × 1080 | 16:9. Often the element that decides the page's LCP. |
| In-article image | 1200 wide | Enough for a high-density screen without bloating the page. |
| Email attachment | 1600 wide | Readable everywhere, without sending several megabytes. |
Enlarging adds no detail. Past roughly 150 percent of the original size, the softness becomes visible. Always start from the largest file you have.
It is easy to forget that the first lever on file size is not quality but dimensions. A phone photo is routinely 4,000 pixels wide, while a blog article never displays more than about 1,200. Those extra 2,800 pixels are downloaded by every visitor and never seen.
Going from 4,000 to 1,200 pixels wide divides the pixel count by more than eleven. No quality setting achieves that without visibly degrading the image. Resize first, compress second — in that order the result is far better.
A portrait, an ID document or a family photo has no reason to pass through someone else's server. PixFlow resizes and crops locally using the Canvas API: nothing is uploaded, nothing is stored, and once the page has loaded the tool keeps working without a connection.
Resizing changes the pixel count while keeping the whole image: nothing disappears, but the aspect ratio must be respected or the picture stretches. Cropping cuts out a portion: the framing changes and whatever falls outside is gone. To turn a landscape photo into an Instagram square you must crop, not resize.
No. Enlarging adds no detail: the software invents intermediate pixels from the ones that exist, producing a bigger but softer image. Up to roughly 150 percent the effect stays discreet; beyond that it shows. Always start from the largest original file you have.
A square image of at least 400 by 400 pixels works, and 800 by 800 looks sharper on high-density screens. LinkedIn displays the photo in a circle, so leave some breathing room around the face or the circular crop will clip the top of the head and the chin.
No. Resizing and cropping happen in your browser through the Canvas API. No photo leaves your device and nothing is stored — which matters especially for a portrait or a personal document.