Image Size Checker
Check image dimensions and file sizes against common submission limits without uploading. Processing happens entirely in your browser.
Drag & drop image here
Supports JPEG, PNG, WEBP and HEIC. Your file stays on your device.
Why Check Image Dimensions Before Uploading?
Online exam portals, government databases, and job application systems enforce two separate requirements for uploaded images: file size (in KB or MB) and pixel dimensions (width × height in pixels). Candidates often focus only on file size and miss the dimension check entirely — resulting in upload errors at the very last step of a time-sensitive application. The UPSC DAF, SSC application portal, NTA forms for JEE and NEET, and banking portals like IBPS all specify exact dimension ranges such as "35×45 mm at 100 DPI" or "pixel width between 100 and 140 pixels."
Modern smartphones take photos at resolutions like 4032×3024 pixels — far exceeding any portal's requirements. Even a cropped passport-style photo may be 800×1000 pixels, which some portals refuse if they require exactly 200×230. Without knowing the exact dimensions of your image beforehand, you risk repeated rejection cycles and wasted application time. Our browser-based Image Size Checker reveals file size, exact pixel dimensions, aspect ratio, and format in seconds — all without uploading your image anywhere. Check first, resize if needed, and submit with confidence.
Common Portal Image Requirements
| Portal / Exam | Photo Dimensions | File Size | Format |
|---|---|---|---|
| UPSC Civil Services | 3.5 × 4.5 cm (passport) | ≤ 300 KB | JPEG |
| SSC (CGL / CHSL) | 100–120 × 140–160 px | ≤ 50 KB | JPEG |
| JEE Main (NTA) | 10–200 KB, 3.5×4.5 cm | ≤ 200 KB | JPEG |
| IBPS (PO / Clerk) | 200 × 230 px (approx.) | ≤ 50 KB | JPEG |
| Passport Application | 35 × 45 mm (passport size) | ≤ 500 KB | JPEG |
| LinkedIn Profile | 400 × 400 px minimum | ≤ 8 MB | JPEG/PNG |
* Requirements vary per notification. Always refer to the official exam notification for the latest specifications.
Frequently Asked Questions
What is the difference between image file size and image dimensions?
Image dimensions refer to the pixel width and height (e.g., 200×230 pixels). File size refers to how many kilobytes the image file takes up on disk. Exam portals check both independently — you can have a small file that is too large in pixels, or a correctly-dimensioned image that is too many KB.
My image looks like a passport photo — why does the portal reject it?
Most portal rejections happen because the pixel dimensions are outside the specified range, even if the photo visually looks correct. Use our tool to check exact pixel dimensions, then use a resizer tool to hit the precise required values.
Does this tool upload my image to check it?
No. All analysis happens locally in your browser using the HTML5 Canvas and File API. Your image is never transmitted to any server. It works even if you are offline and is completely private.
What image formats does this tool support?
This tool supports JPEG, PNG, WebP, GIF, BMP, and most other standard web image formats. HEIC images (from iPhone cameras) may need to be converted to JPEG first, as browser support for HEIC is limited.
How do I resize my image to specific pixel dimensions?
Use our Pixel Resizer tool to scale your image to exact pixel dimensions. If the file is still too large in KB after resizing, use the Exact KB Compressor to compress it to the precise byte target required by the exam portal.