Free image checker

Free Image Checker for social media, SEO, DPI and metadata before you upload or publish

Upload an image to see whether it fits common publishing requirements for Instagram, YouTube thumbnails, Open Graph previews, LinkedIn sharing and Meta image ads. The tool also shows DPI, print-size estimates and metadata privacy warnings.

Browser-side checker

Upload an image to the Image Checker

Choose a JPG, PNG, WebP, GIF or other image file. The tool reads the file locally, then compares the result with social media, SEO, DPI and metadata checks.

Your original image stays in your browser for this check. The share link only keeps dimensions, format, file size and fit results.

Try sample sizes

Results will appear here

Upload an image or try a sample size to see dimensions, aspect ratio, platform fit, DPI, print-size estimates and metadata warnings.

How the Image Checker turns file details into upload decisions

The tool checks the numbers first, then explains what they mean for publishing.

Dimensions and aspect ratio

Pixel width, height and ratio are checked first because they are the main reasons images get cropped, blurred or rejected after upload.

Image dimensions and aspect ratio checks shown in a clean checker interface

DPI and metadata risk

The same upload also checks embedded DPI for print estimates and flags common metadata such as GPS, camera model, dates, author fields and editing software.

Metadata privacy flags and DPI print estimates in an image checker workflow

Platform fit and shareable reports

After the file checks, the Image Checker groups pass, warning and fail results by publishing use case so you can copy a report or share a lightweight result link.

Platform fit results and copyable report in an image checker dashboard

Image Checker features that help before upload

Each result is written for the person who needs to fix the image, not just record a number.

Social image fit

Compare one uploaded image against Instagram, YouTube, Open Graph, LinkedIn and Meta feed ad checks.

Run a check

Pixel and ratio clarity

See exact dimensions, simplified aspect ratio and practical warnings when the crop does not match a placement.

Check dimensions

DPI and print estimate

Read embedded DPI when available and estimate print size when a file has no DPI metadata.

Check DPI

Metadata privacy flags

Flag GPS, camera, date, software, author and copyright metadata before you send an image.

Check metadata

Shareable result link

Share dimensions, format and fit results without sharing the original image file.

Share result

Copyable report

Copy a plain report for client handoff, QA notes or your own publishing checklist.

Copy report

How to use this Image Checker before publishing

Use this flow when you are preparing social images, blog share graphics, ads or client deliverables.

01

Upload the image you plan to publish

Start with the actual file you plan to publish. The tool reads dimensions, format, file size, DPI and common metadata flags in one pass.

  • No account required
  • Original image stays in your browser
Upload image
02

Review platform warnings

Look for the placements that pass first, then scan warnings for crop, file-size and recommended-size gaps before resizing.

A warning can still be usable if the platform accepts the file, but it tells you where quality or crop risk remains.

03

Re-export with the suggested fixes

Export a corrected image from your design tool, upload again, and copy the report when the result is ready for your workflow.

Keep important text and faces away from edges because some platforms crop previews differently in comments, feeds and mobile surfaces.

Read image guide

Image Checker FAQ

Practical answers about checking image size, aspect ratio, social media fit, DPI and metadata before publishing.

What does this Image Checker check?

This Image Checker reads image dimensions, aspect ratio, file size, format, DPI or PPI, common metadata flags and fit against common social media and SEO image requirements.

Is this Image Checker also an image size checker?

Yes. It works as an image size checker by showing the exact pixel width and height, file size and simplified aspect ratio, then explaining whether the image is large enough for common publishing placements.

Can the Image Checker tell me if my image fits Instagram, YouTube, Open Graph or LinkedIn?

It compares your image with common requirements for Instagram feed photos, Instagram Reel covers, YouTube thumbnails, Open Graph previews, LinkedIn sharing images and Meta feed image ads. Platform rules can change, so use official requirements for final business-critical uploads.

Does this Image Checker upload or store my image?

No. The original image is read in your browser for this check. Share links can keep dimensions, format, file size and fit results, but they do not include the original image file.

Can this Image Checker find EXIF metadata or privacy risks?

When the browser can read the metadata, the tool flags common EXIF, IPTC or XMP fields such as GPS location, camera or device model, original date, editing software, author and copyright information.

Why does the Image Checker show a warning instead of a pass?

A warning usually means the image may still work, but a larger export, different crop, better aspect ratio or smaller file size would be safer. It helps you fix quality, crop and upload-limit risks before publishing.

Run the Image Checker before your next upload

Use this tool whenever you prepare social media graphics, Open Graph images, ads, thumbnails or client files.

Then copy the report or share a result link without exposing the original image.

Free image checker for dimensions, aspect ratio, DPI, metadata and publishing fit.