Compress Image to 250kB

Yes, for almost every post and profile use. The official caps are far higher – LinkedIn allows profile photos up to 8 MB and Meta's Instagram feed spec goes to 30 MB – but the picture people actually see is a resized copy that is rarely wider than a phone screen. A 250 kB JPG at 1080 px wide carries all of that detail. What 250 kB buys you is a faster upload on mobile data and a file small enough to forward by WhatsApp or email afterwards. Only a wide banner deserves more thought, and even there Facebook recommends a JPG under 100 kB for its 851 × 315 px Page cover.

Think in pixels rather than quality. JPEG photos on the web average about two bits per pixel (HTTP Archive, 2024), which means 250 kB holds roughly one million pixels at normal quality: 1200 × 850 px for a landscape, 1000 × 1000 px for a square. Simple images with flat backgrounds need fewer bits per pixel, so a white-background product shot can go to about 1600 × 1600 px and still fit. Portraits sit comfortably at 800 × 800 px. Beyond those sizes the tool has to cut quality or dimensions, and softness creeps in from about 2000 px upwards. If you know the display size the platform uses, resize to that and no more.

It depends on where the original started. A 2–3 MB photo from a mid-range phone, or a 1500 px image exported from an editor, loses almost nothing you can see: the compressor trims quality a little and keeps the dimensions. An 8–10 MB, 24 or 48 MP shot from a flagship camera is a different story, because the pixel count has to fall by a factor of ten or more. The before/after slider in the result panel shows exactly what changed, and the stats line lists the final dimensions and the quality used. Judge the result at the size it will be viewed, not zoomed to 400 %, and 250 kB almost always passes.

Check the format list before you choose. LinkedIn's help page says PNG or JPG only, Google Business Profile asks for JPG or PNG, and Meta's Instagram feed spec lists JPG or PNG as well. eBay and Shopify, on the other hand, both list WebP among their accepted types. When a page does not say, JPG is the safe default: every browser, phone gallery and upload form understands it. Use the Auto output setting and the tool keeps WebP input as WebP and saves everything else as JPG; force JPG when you are sending the file to a portal that only names JPG.

Yes. Open the bulk image compressor, drop in up to 200 images, set 250 kB as the single target and, if you want every listing image the same size, limit the longest side to 1600 px. Files are processed one after another on your own device, each gets its own Save button, and a Download all as ZIP button builds the archive in the browser. Nothing is uploaded, so a catalogue of a few hundred photos can be prepared in one sitting on a laptop without worrying about a slow connection.

Strictly speaking, you never upload anything. When you choose a file, the browser reads it from your device and does the resizing and re-encoding in a background worker on that same device. No copy travels to our server or to anyone else's; the only thing our server sends you is the page. A useful side effect is that the browser rebuilds the image from its pixels alone, so EXIF data such as the camera model, the date taken and the GPS location is dropped from the output. That makes the compressed photo safer to share than the original you started with.

No. We have no image storage of any kind, because the file never reaches us in the first place. It sits in your browser's memory while you work, and the compressed version exists only on your device once you download it. Close or refresh the tab and both are gone. We keep no history, no gallery and no cache on our side, and we cannot see what you compress. Our web host records ordinary server logs, such as the time of a page visit and the browser used, but those cannot contain your pictures. For the full detail, read our privacy policy.

Mb2KbSizer is a free image and PDF compressor that runs inside your web browser. You pick a file, type the size you need, such as 100 kB, and it shrinks the file to land at or just under that number. Most people use it for upload forms that reject big files: exam registrations, passport and visa applications, job portals, bank KYC and college admissions. It is just as handy for lightening photos before you email them or put them on a website. There is a [single-image tool](/), a bulk compressor for up to 200 photos at once, and a PDF compressor, all built on the same no-upload principle.

Yes. Every tool on this site is free, and we intend to keep it that way. There is no sign-up, no premium tier, no daily quota and no watermark on the output. Compress one photo or three hundred; nothing counts against a limit. A few ads on the page pay for hosting. Because the heavy lifting happens on your own device rather than on our servers, each extra user costs us almost nothing, so there is no reason to charge. We do not sell an app, a plan or an API either, so you will never be nudged towards a paid version.

No installation is needed. Mb2KbSizer is a web page, so it works the moment it loads in current Chrome, Edge, Firefox, Safari or Samsung Internet on a phone, tablet or computer. Nothing is downloaded to your device except the page itself, and it does not ask for storage or camera permissions. If you use the tool often, you can add it to your phone's home screen from the browser menu and it will open like an app. It still needs an internet connection to load, though, so treat this as a shortcut rather than an offline program. There is no Play Store or App Store version.

Three steps, usually under a minute.

1. Add your photo. Drag it onto the upload box, tap browse to pick it from your gallery, or paste it from the clipboard with Ctrl/Cmd + V.
2. Set the target. Type a number and choose kB or MB, or tap a quick chip from 20 to 350 kB. On a preset page the field is already filled in. If a form demands exact pixel dimensions, set them in the resize option.
3. Press Compress, then Download. You get a before/after slider, the output dimensions, the quality used and the exact byte count, so you know it will pass before you submit it.

You can upload JPG, PNG, WebP, GIF (the first frame is used), BMP and AVIF, provided your browser can decode the file. HEIC photos from an iPhone open in Safari and other browsers with HEIC support; elsewhere the tool explains how to set the camera to Most Compatible so new shots are saved as JPG. Files up to 60 MB are accepted. For output, Auto gives a JPG in most cases and keeps WebP as WebP; you can also force JPG, WebP or PNG. PNG is lossless, so a PNG target is reached only by reducing dimensions, which is why JPG is the better pick for a small photo.