Compress an image to 65 KB
A good weight for blog thumbnails and article cards that load fast.
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How it works
Add your images
Drag and drop, paste, or pick files. They upload over an encrypted connection.
Pick a quality or a target size
Use the quality slider, or tell it exactly how many KB or MB you need.
Download
Save each file, or grab them all at once as a ZIP.
65 KB is a handy weight for the picture on an article card or a blog listing. A page of such cards shows many pictures at once, and each one has to stay light for the page to feel quick.
The compressor picks the best quality that keeps the file at or below 65,000 bytes. It scales the picture down only when it must, and tells you the final width and height next to the size.
Cards are usually shown in a fixed ratio, such as a wide rectangle. Crop to that ratio first, so no bytes go to parts of the picture that the card will cut off anyway.
Card sizes and what they need
A card picture is often 720 pixels wide and 400 high. That is 288,000 pixels, and 65 KB gives it a budget of about 1.8 bits per pixel. That is generous, so the picture can look clean even with some texture in it.
Search results and social previews
When a page is shared, the preview picture is fetched by search engines and social sites. A light one is fetched reliably. A very heavy one can time out and leave a blank preview. Staying near 65 KB for the main picture keeps the preview dependable.
Alt text and file names
Before you upload the compressed file, give it a descriptive name such as red-bicycle-leaning-on-wall.jpg and write alt text that says what is in the picture. Both help people using screen readers and help search engines understand the page.
Quality at a glance
Look at the picture where it will be used, not in the compressor. If the thumbnail looks sharp inside the card on a real phone, the target is right. If it looks grainy, raise the target in small steps, such as 75 KB, until it does not.
Keeping a consistent look
When all the cards on a page use the same ratio and about the same weight, the page looks tidy and loads evenly. Compress the whole set to 65 KB at the same width, and no single picture will stand out as blurry or heavy.
If one picture is a poor fit, reshoot or recrop it rather than lowering the target for the whole set.
Responsive images in one line
Pages that serve a different file to each screen size can use this target for the middle size. A 720 pixel version at 65 KB covers most tablets and small laptops, and phones can get a smaller one.
The page keeps a light feel and the first picture stays sharp.
Responsive pictures in one line
Pages that serve a different file for each screen size can use this target for the middle size. A 720 pixel version at 65 KB covers most tablets and small laptops, and phones can receive a smaller one.
Three versions are normally enough for a whole page.
Frequently asked questions
How wide should a blog thumbnail be?
Between 600 and 800 pixels covers most layouts, including high-density screens.
Is WebP better for blog images?
Usually smaller at the same look. Use JPEG if you need the widest compatibility.
Can I set a size between 60 and 70 KB?
Yes. Pick Custom in the Target size menu and type the number you want.
Will it keep my image sharp?
It keeps the highest quality that fits. Detailed pictures at a large size will look softer than simple ones.
How many versions of a picture do I need?
Two or three are enough for most sites: small for phones, medium for tablets and laptops, large for wide monitors.