Compress Image to 50kB

Yes, comfortably, as long as the pixel dimensions are passport-sized rather than camera-sized. The forms that use a 50 kB cap pair it with small dimensions – 200 × 230 px at IBPS and SBI, 3.5 × 4.5 cm at MPSC – and a photo that size has fewer than 50,000 pixels, so the encoder can run at a high quality setting and still land under 50 kB. Problems only start when you feed in the original 4000 × 3000 px camera file, which forces the tool to shrink it before it can fit. Crop to the stated size first and 50 kB will usually leave headroom.

The bank recruitment exams are the main group: IBPS CRP PO/MT-XV (2025) and SBI PO 2026 both ask for a 200 × 230 px photograph of 20–50 kB and a 240 × 240 px left-thumb impression in the same range. MPSC caps its photograph and signature at 50 kB each. Signatures elsewhere share the ceiling – CUET (UG) 2026 allows 10–50 kB and RRB CEN 01/2025 gives 30–49 kB. Note what has changed: SSC now takes a live photo and only needs a 10–20 kB signature file, and Protean's PAN form asks for 20 kB, not 50. Every figure here comes from a specific year's notice, so check the one you are filling in.

Resize first, then compress. A 4000 × 3000 px photo has twelve million pixels, and 50 kB cannot describe them at any quality worth uploading, so pick the resize option that matches the form: exact 200 × 230 px for an IBPS-style photo, or fit within 800 × 600 px for a general picture. The tool then searches the quality setting and lands at or just under 50 kB. If you skip the resize it still works – it detects that quality would have to drop below about 45 %, reduces the dimensions in clean steps and searches again – but choosing the size yourself gives a sharper result at the dimensions you actually need.

Make the picture larger, not the quality higher. A plain passport photo at 200 × 230 px can compress to well under 20 kB, and the tool never pads a file to reach a minimum. Rescan at a higher dpi, or set fit within 400 × 460 px and compress again with 50 kB as the target; the output will settle in the 25–45 kB band. Check the byte count in the result panel before you upload, and remember that some portals count 1,024 bytes to the kilobyte, so stay a little below the ceiling too.

JPG, unless the form says otherwise. Every portal in the table on this page – IBPS, SBI, MPSC, CUET, RRB and TNPSC – lists JPG or JPEG and nothing else, and a file in the wrong format is simply refused. Force the output to JPG so a WebP or PNG original is converted rather than kept. PNG is lossless, which means it can only get under 50 kB by losing pixels, so it is the wrong choice for a photo at this size; a scanned signature saved as PNG converts to JPG with its transparent background filled white.

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.

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.