Compare Image Files Online - Check If Two Images Are Identical
Upload two image files (PNG, JPG, WebP, GIF) and instantly verify if they are byte-for-byte identical using SHA-256 checksums. Free, private, and no installation required.
How Image Comparison Works
Comparing image files with FolderManifest uses SHA-256 checksums to determine if two images are identical at the byte level. Here's the process:
- Upload both images: Drag and drop your image files (PNG, JPG, WebP, GIF) into the comparison tool. Each file can be up to 10MB.
- SHA-256 hash calculation: A unique cryptographic fingerprint is generated for each image. Even a single pixel difference produces a completely different hash.
- Instant comparison: The two hashes are compared. If they match, your images are 100% identical. If they differ, the files contain different content.
- Privacy guaranteed: Files are processed in-memory and immediately discarded. Nothing is stored.
Why Compare Image Files?
Image files are everywhere — from web assets and design files to personal photos and screenshots. Knowing whether two images are truly identical matters:
- Duplicate detection: Find identical photos cluttering your storage across folders or devices.
- Edit verification: Confirm whether an image has been modified from the original.
- Web assets: Verify that website images haven't been accidentally replaced or corrupted.
- Design files: Check if exported design assets match the source files exactly.
- Backup validation: Ensure image backups are exact copies of the originals.
Image Comparison Features
All Image Formats
Works with PNG, JPG, WebP, GIF, BMP, TIFF, SVG, and any other image format.
No Installation
Runs in any modern browser. No software downloads, plugins, or accounts needed.
Byte-Level Accuracy
SHA-256 checksums catch metadata, EXIF, compression, and pixel-level differences.
Privacy & Security
In-Memory Processing
Images are never written to disk. Processed entirely in RAM and discarded.
No Account Required
Compare images without signing up or providing an email address.
HTTPS Encryption
All file transfers are encrypted. Your images are protected in transit.
Immediate Deletion
Files are deleted from memory as soon as comparison completes.
Common Image Comparison Use Cases
Find Duplicate Photos
Quickly check if two photos in your collection are identical copies taking up extra storage.
Verify Edited vs Original
Confirm whether an image has been modified from the original by comparing checksums.
Web Asset Integrity
Verify that website images haven't been accidentally replaced, resized, or recompressed.
Design File Verification
Check that exported design assets match the source files exactly across formats.
Screenshot Comparison
Compare screenshots to verify UI changes or detect visual regression between versions.
Backup Validation
Ensure image backups from cloud storage or external drives match the originals exactly.
Online vs Desktop Image Comparison
What This Tool Can and Can't Do
What it does:
- Compare 2 images by SHA-256 checksum — tells you if they are identical or different
- Works with PNG, JPG, WebP, GIF, BMP, TIFF, SVG, and any image format
- No installation or account needed
- Privacy-first: files processed in-memory and discarded
What it doesn't do:
- Doesn't show visual pixel-by-pixel differences between images
- Doesn't compare image content semantically (visually similar but different files)
- Doesn't extract or compare EXIF metadata separately
- Limited to 10MB per file
When You Need a Full Desktop Solution
Use FolderManifest desktop to compare entire folders of images, find duplicates across directories, and process unlimited file sizes — all locally on your computer.
Frequently Asked Questions
How do I compare two image files online?
Open the Compare Files tool, drag and drop both images, and click Compare. You'll see instantly if they're identical or different.
Can two images look the same but be different?
Yes. Images can have different EXIF metadata, compression levels, or color profiles even if they look identical visually. SHA-256 checksums catch all these hidden differences.
Does this compare PNG and JPG versions of the same image?
They will show as different because PNG and JPG use different compression. Even if the pixels look identical, the file bytes differ. This tool checks byte-level identity, not visual similarity.
What if I need to compare images larger than 10MB?
Use FolderManifest desktop to process unlimited file sizes, compare entire image folders, and find duplicates — all locally.