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Photo resizer in KB and pixels

Reduce an image to 20 KB, 50 KB, 100 KB or any size in KB, and resize it to exact pixels such as 600×600 or 200×230. Choose a photo, tap the size and download: free, on your phone or computer, with nothing uploaded.

File size
Pixel size
Format
  • Processed on your device. Never uploaded to our servers.
  • Free · No sign-up · No watermark
  • Once this page has loaded, the tool keeps working offline.

Need a passport photo at the right size? Make a passport photo in the Studio

What the photo resizer does

  • Compresses a photo to 20 KB, 50 KB, 100 KB, 200 KB or your own maximum, with a minimum if your form sets one.
  • Changes the size in pixels: 200×230, 350×350, 600×600 or any width and height, with or without keeping the shape.
  • Keeps as much quality as the limit allows: the JPEG quality goes down first, the pixel size only when needed.
  • Saves a JPEG or PNG without camera and location data (EXIF), turned the right way up.
  • Runs in your browser: your photo never leaves your device, and the tool works offline once loaded.

How to reduce a photo to 20 KB, 50 KB or 100 KB

  1. Choose your photo

    Pick a JPEG, PNG or WebP photo on your phone or computer. It opens in your browser; nothing is uploaded.

  2. Pick the KB size and pixels

    Tap 20 KB, 50 KB, 100 KB or 200 KB, or enter your own limit. If the form asks for exact pixels, choose them too.

  3. Check and download

    We show the final pixels, KB and exact bytes, so you can compare them with the form before you upload.

Photo size in KB and pixels for online applications

Pixel and file-size rules we track for document photos, each from the official source.

Document Pixels File size
US Passport Photo — 54 KB – 10 MB
UK Passport Photo — 50 KB – 10 MB
US Visa Photo 600 × 600 px up to 240 KB
UAE Visa Photo 600–1200 px up to 2 MB
UAE Emirates ID Photo 600–1200 px up to 2 MB
India OCI Card Photo 200–900 px up to 200 KB
China Visa Photo — 40 KB – 120 KB
New Zealand Passport Photo 900 × 1200 px 250 KB – 5 MB
Ireland Passport Photo 715 × 951 px up to 9 MB
Poland Passport Photo 768 × 1004 px up to 2500 KB
India Passport (applying abroad) Photo 630 × 810 px up to 250 KB
Japan Passport Photo — up to 600 KB

Need a passport photo at the right size?

Resizing changes only the pixels and KB. A passport or visa photo also needs the right head size, position and background. The Ovalight Studio guides your phone camera, crops the photo to the exact size for your document and checks it against the published rules.

Make a passport photo in the Studio Find your document

Frequently asked questions

How do I resize an image to 20 KB?

Choose the photo, tap 20 KB and download. The resizer lowers the JPEG quality step by step and, if that is not enough, the pixel size, until the file is at or under 20 KB. It takes a few seconds and works on your phone.

How do I compress an image to 50 KB or 100 KB?

The same way: tap 50 KB or 100 KB. For another limit, such as 30 KB or 500 KB, choose Custom and enter the maximum in KB. If your form also sets a minimum, enter it too.

How do I reduce image size in KB without losing quality?

A smaller file always costs some detail, so we keep as much as the limit allows: the resizer lowers the JPEG quality first and reduces the pixels only when quality alone cannot reach the limit. If your form fixes the pixels, set them, and only the quality changes.

Can I resize a photo to exact pixels like 600×600 or 200×230?

Yes. Tap a preset or enter a width and height. If the shape changes, the photo is cropped from the centre. Tick "Keep aspect ratio" to change the size without cropping.

Is 1 KB 1,000 or 1,024 bytes?

Forms differ, so we play safe: a 20 KB limit means at most 20,000 bytes, which also passes forms that count 1 KB as 1,024 bytes. We show the exact number of bytes too.

Can I convert a photo to passport size here?

Only the pixels and KB. This tool crops from the centre, so it does not place the head at the size and position a passport photo needs. Test a photo you have with the Passport photo checker, or make a new one in the Studio, which crops it to the exact size for your document.

Is my photo uploaded, and does it work on a phone?

Nothing is uploaded. Processed on your device. Never uploaded to our servers. The resizer runs in your browser on iPhone, Android or a computer, removes camera and location data (EXIF) and keeps working offline once the page has loaded.

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