Is 300KB noticeably compressed?

For most photos the change is hard to spot — 300KB retains a lot of detail, so it's a good choice when quality matters but you still need a smaller file.

Does it keep the same dimensions?

Yes, in almost all cases the pixel dimensions are unchanged; only quality is trimmed to hit 300KB. Very large images may be downscaled slightly.

Is 300 KB small enough for a website?

For a full-width photo, yes; it is a common budget in page-speed guidelines. Thumbnails and small inline images should be far lighter, so compress those to 50 or 100 KB instead.

Should I compress before or after resizing?

Resize first if you know the pixel size you need, then compress to 300 KB. Compressing a huge image and resizing afterwards throws away quality twice; doing it in this order keeps the most detail.

Compress Image to 300KB

Compress an image to 300KB — a roomy limit that keeps photos looking sharp.

Target size

Drop an image here or click to choose

processed on your device — never uploaded

A 300 KB target is the point where compression stops being a sacrifice and becomes housekeeping. Most photographs can be held under it at 1600 to 2000 pixels wide without any change you would notice on a monitor or a phone, which makes it a good default for blog posts, portfolio pages, listing photos and anything a content system will serve to visitors. Page-speed tools flag hero images in the multi-megabyte range; a set of 300 KB images keeps a page light without the soft, blocky look that smaller budgets produce.

It is also a practical size for sending several photos at once. Ten images at 300 KB come to about 3 MB, well inside what chat apps and mail servers accept, and still large enough to be viewed full-screen. If your source is a 6000-pixel camera file or a scan at print resolution, expect the tool to bring the dimensions down somewhat, since no amount of quality reduction fits that many pixels in 300 KB with acceptable results. The one thing this preset will not do is make an image suitable for print: 300 KB is a screen budget, and a printer wants the original. Keep that copy and treat the compressed file as the version you share.

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Frequently asked questions

Is 300KB noticeably compressed?: For most photos the change is hard to spot — 300KB retains a lot of detail, so it's a good choice when quality matters but you still need a smaller file.
Does it keep the same dimensions?: Yes, in almost all cases the pixel dimensions are unchanged; only quality is trimmed to hit 300KB. Very large images may be downscaled slightly.
Is 300 KB small enough for a website?: For a full-width photo, yes; it is a common budget in page-speed guidelines. Thumbnails and small inline images should be far lighter, so compress those to 50 or 100 KB instead.
Should I compress before or after resizing?: Resize first if you know the pixel size you need, then compress to 300 KB. Compressing a huge image and resizing afterwards throws away quality twice; doing it in this order keeps the most detail.

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