Image Dimensions Checker
Upload multiple images to instantly check their width, height, file size, format, and aspect ratio — all in a single sortable table. Supports PNG, JPG, WebP, GIF, BMP, TIFF, AVIF, SVG, and ICO. Export the full results as a CSV file for use in spreadsheets and project documentation. All processing runs locally in your browser with no signup required.
Upload multiple images to instantly see their width, height, file size, format, and aspect ratio in a sortable table. Export results as CSV. All processing runs locally in your browser — no signup required.
Upload images above to check their dimensions
Why Use Our Image Dimensions Checker?
Instant Image Dimensions Check
The image dimensions checker reads width, height, file size, format, and aspect ratio from all uploaded images in seconds — no server round-trips, no waiting. Results appear instantly in a sortable table.
Secure Image Dimensions Checker Online
Your images never leave your device. The image dimensions checker processes everything locally in your browser, making it safe for client assets, confidential designs, and personal photos.
Batch Check with Sortable Table
Upload dozens of images at once and check all their dimensions in a single click. Sort by filename, width, height, megapixels, file size, or format — and export the full results as a CSV file.
100% Free Forever
Use this image dimensions checker without signup, subscriptions, rate limits, or hidden paywalls. Check as many images as you need, completely free with no ads.
Common Use Cases for Image Dimensions Checker
Social Media Asset Verification
Use the image dimensions checker to verify that all social media assets meet platform requirements before uploading — checking that Instagram posts are 1080×1080, Twitter headers are 1500×500, and LinkedIn banners are 1584×396.
Print and Production Checks
Check image dimensions and megapixels before sending files to print — the image dimensions checker confirms whether images have sufficient resolution for the required print size at 300 DPI.
Web Development Asset Audits
Developers use the image dimensions checker to audit batches of web assets, identifying oversized images that need resizing, verifying responsive breakpoint images, and checking icon dimensions before deployment.
E-Commerce Product Image QA
E-commerce teams use the image dimensions checker to batch-verify that all product images meet marketplace requirements — checking that Amazon, Shopify, and Etsy listings have the correct minimum dimensions and aspect ratios.
Photography and Asset Management
Photographers and digital asset managers use the image dimensions checker to quickly audit large batches of photos, identifying landscape vs. portrait orientations and sorting by megapixels for quality control.
Design System and UI Audits
Design system teams use the image dimensions checker to verify that all icons, illustrations, and UI assets are the correct pixel dimensions before committing them to a design system or component library.
Understanding the Image Dimensions Checker
What is an image dimensions checker?
An image dimensions checkeris a tool that reads the pixel dimensions, file size, format, and aspect ratio of image files without modifying them. This image dimensions checker uses the browser's native image loading API to extract width and height from each uploaded file, then calculates derived values like megapixels, aspect ratio, and orientation. All processing happens locally in your browser — your images are never uploaded to any server. The image dimensions checker supports PNG, JPG, JPEG, WebP, GIF, BMP, TIFF, AVIF, SVG, and ICO formats.
How our image dimensions checker works
- Upload your images: Drag and drop or click to browse for any number of image files. The image dimensions checker accepts PNG, JPG, WebP, GIF, BMP, TIFF, AVIF, SVG, and ICO formats. You can upload as many images as needed in a single batch.
- Click "Check Dimensions": The image dimensions checker loads each image using the browser's native image API, reads its natural width and height, and calculates all derived values. All processing happens locally in your browser — your images never leave your device.
- Sort, review, and export:Results appear in a sortable table. Click any column header to sort by that value. Click "Export CSV" to download the full results as a spreadsheet-compatible CSV file for use in project documentation, asset audits, and QA reports.
What each column shows
- Dimensions:The pixel width and height of the image as reported by the browser's image loading API — the actual rendered pixel dimensions, not the DPI-adjusted print size.
- Megapixels: Width × height divided by 1,000,000 — a quick indicator of image resolution. A 1920×1080 image is approximately 2.07 MP; a 4000×3000 image is 12 MP.
- Aspect Ratio:The simplified width-to-height ratio. Common ratios are labelled (e.g., "16:9 (Widescreen)", "1:1 (Square)"); unusual ratios show the simplified fraction.
- File Size: The actual file size on disk in bytes, KB, or MB — not the uncompressed pixel data size. This is the size of the file as uploaded.
Important limitations
The image dimensions checker reports the pixel dimensions as decoded by the browser — for JPEG images with EXIF orientation metadata, some browsers automatically rotate the image, which may cause the reported width and height to differ from the raw file dimensions. SVG files report their viewport dimensions rather than a fixed pixel size. The image dimensions checker does not read DPI metadata — to check or change DPI, use the Image DPI Checker tool. Very large batches (100+ images) may take a few seconds to process depending on your device's performance.
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Frequently Asked Questions About Image Dimensions Checker
An image dimensions checker reads the pixel width, height, file size, format, and aspect ratio of image files without modifying them. Our image dimensions checker processes everything locally in your browser using the native image loading API — no images are uploaded to any server.
The image dimensions checker supports batch processing of any number of images in a single session. Upload as many images as you need — results appear in a sortable table and can be exported as a CSV file for use in spreadsheets and project documentation.
Yes. All processing happens 100% locally in your browser. Your images never leave your device and are never sent to any server. The image dimensions checker is completely private and safe for confidential client assets and personal photos.
Yes. The image dimensions checker is 100% free with no signup required, no premium features, and no usage limits. Check as many images as you need without any restrictions or hidden costs.
The image dimensions checker supports PNG, JPG, JPEG, WebP, GIF, BMP, TIFF, AVIF, SVG, and ICO formats. Any image format that your browser can display will work with the image dimensions checker.
Megapixels is calculated as width × height ÷ 1,000,000. It is a quick indicator of image resolution — a 1920×1080 image is approximately 2.07 MP, a 4000×3000 image is 12 MP, and a 6000×4000 image is 24 MP. Higher megapixels generally means more detail and larger file sizes.
The aspect ratio is calculated by dividing the width and height by their greatest common divisor to produce a simplified fraction (e.g., 1920×1080 → 16:9). Common ratios are labelled with their standard name (16:9 Widescreen, 4:3 Standard, 1:1 Square, etc.). Unusual ratios show the simplified fraction.
Yes. Click the "Export CSV" button after checking dimensions to download a CSV file containing all results — filename, width, height, megapixels, aspect ratio, file size, format, and orientation. The CSV file opens directly in Excel, Google Sheets, and Numbers.
For JPEG images with EXIF orientation metadata, some browsers automatically rotate the image when loading it, which may cause the reported width and height to differ from the raw file dimensions. SVG files report their viewport dimensions rather than a fixed pixel size. If you need the raw file dimensions, use an EXIF metadata viewer.