Choose Images
Add two local files or load browser-local examples for image comparison.Browser-local image comparison
Image Comparison, Free.
Use this image comparison free workspace to compare two images, create a clear comparison picture, and check local pixel metrics in your browser.
Working comparison console
Compare images in your browser
Start with a real before/after example, cycle through prepared cases, or replace either side with your own PNG, JPG/JPEG, or WebP file.
Images stay in this browser sessionPNG, JPG/JPEG, WebPPixel metrics only after Highlight Diff
Similarity
Needs imagesNeeds Image A + BDifference Score
Needs imagesNeeds Image A + BProcessing Time
Needs imagesNeeds Image A + BAdd two images to compare
Use the upload panels above, drag files into each slot, or load the example pair.
Local diff
Needs Image A + Image B
Add both images before pixel scores can run.Visual Changes
Needs imagesNeeds Image A + BColor Delta
Needs imagesNeeds Image A + BResolution Match
PendingNeeds Image A and B1
Upload Images
Replace either side or drag a file into a slot.
Choose or drop a PNG, JPG/JPEG, or WebP file for Image A.
A
Original / before
Drop a file here or choose from your device.
PNG, JPG/JPEG, or WebP only.Choose or drop a PNG, JPG/JPEG, or WebP file for Image B.
B
Modified / after
Drop a file here or choose from your device.
PNG, JPG/JPEG, or WebP only.2
Choose View Mode
Change how the central viewer compares the pair.
3
Results Summary
Add both images to unlock local pixel scores.
Choose View Mode
Use comparison views with slider, side-by-side, overlay, or Highlight Diff.Results Summary
Read file metadata first, then local pixel metrics after comparison.Comparison modes
Pick the image comparison view that fits each review
The interface keeps visual comparison modes separate from computed pixel results, so metrics stay pending until images are loaded and compared.
Slider
Drag a divider across an image pair for before after image comparison and quick visual inspection.
Side by side
Place both images next to each other for side by side image comparison, picture comparison, and layout checks.
Overlay
Layer images together when image comparison needs spacing, color, or alignment changes checked closely.
Highlight Diff
Highlight changed pixels when a comparison image pair needs measurable local image comparison results.
Use cases
Built for reviews where the visual difference matters
Use the same focused review workflow for generated image variants, photo edits, product assets, website screenshots, and design versions.
V1 scope
The page is intentionally centered on selecting two files, previewing them in the browser, and inspecting the comparison locally.
Generated Image Variants
Compare generated variants, prompt edits, or retouches with the same local review modes.
Photo Editing Comparison
Use picture comparison to check color, cleanup, crop, and retouch changes with a draggable before-and-after view.
Image Quality and Compression
Run image comparison on exported JPG, PNG, or WebP files after resizing or compression.
Product Image Comparison
Inspect ecommerce edits, background cleanup, and product variant changes with an online image comparison tool.
Website Screenshot Comparison
Put UI screenshots side by side or run a local pixel highlight check for visual QA and comparison picture review.
Design Version Review
Compare design exports, mocks, and client revisions in one focused local workspace.
Methods
Visual inspection and pixel checking in one comparison workspace
Slider, overlay, and side-by-side views help with human inspection. Highlight Diff runs a browser-local comparison only when you ask for it.
Visual image comparison
Use slider, overlay, and side-by-side views when human inspection is the clearest way to compare images online.
Local pixel checking
Use Highlight Diff only after images load, so pixel metrics come from browser-local image comparison data.
Format-aware workflow
For picture comparison, use PNG, JPG, JPEG, WebP files in the current comparison image tool.
Comparison guide
Use one image comparison flow for each comparison picture
Whether you start with a comparison image, a pair of screenshots, or a before-and-after edit, the tool keeps the review focused and local.
Comparison image review
A comparison image pair can be a product edit, UI screenshot, generated variant, scan cleanup, or photo retouch in image comparison.
Image comparison online
The online image comparison tool runs in the page, with selected files previewed locally in your browser for image comparison online.
Picture comparison checks
Use picture comparison when image comparison needs a fast comparison of images before deciding whether to run local pixel diff.
Similarity review
Compare two images for similarity by scanning the image comparison modes first, then use Highlight Diff for changed pixels.
Examples
Image comparison examples
Preview before/after edits, UI screenshots, ecommerce images, generated image variants, and scanned documents as image comparison and comparison picture examples.
How it works
A short path from local files to review
The workflow is narrow on purpose: choose two files, select a view, inspect the visible difference, and reset when you are done.
Choose two images
Select the original and changed image from your device for browser-local image comparison.
Pick a comparison mode
Switch between slider, side-by-side, overlay, and Highlight Diff views for image comparison and picture comparison.
Inspect the differences
Scan the visual view first; image comparison metrics remain pending until images are loaded and compared.
Privacy
Privacy-first local comparison scope
The product is designed for browser-local image comparison checks that keep selected files in the local review flow.
Verified v1 data flow
- Images are loaded from local File objects.
- Preview and diff images use revocable object URLs.
- No image data is written to URL params, localStorage, or sessionStorage.
FAQ
Image comparison questions
Answers match the visible tool: PNG, JPG/JPEG, WebP, four review modes, and browser-local processing.
Is this image comparison free?
Yes. Image comparison free means you can choose two local files, view them in the browser, and run local pixel checks from the homepage.
What image formats work for a comparison image?
A comparison image can currently be PNG, JPG, JPEG, WebP. The page does not claim support for unsupported formats.
Can I compare images with a slider?
Yes. Slider mode is available for image comparison alongside side-by-side image comparison, overlay, and Highlight Diff modes.
What does a comparison picture result measure?
A comparison picture result is not an automated score. File details appear after images load, and pixel metrics are calculated locally only after you run a comparison.
Is picture comparison handled in my browser?
Yes. Picture comparison is designed around browser-local files, local preview URLs, and local pixel metrics after comparison.
Can I use this as an online image comparison tool?
Yes. The online image comparison tool works in the browser, but the selected image files stay in the local image comparison flow.
What is a comparison picture example?
A comparison picture example could be a before-and-after edit, a product retouch, a UI screenshot change, or a generated image variation.
Are my image data safe?
Selected images are previewed and compared locally in the browser. The current tool does not create server upload routes, account flows, share links, or image data in URLs or browser storage. Future analytics or ads measurement should not receive image files, object URLs, filenames, base64 image data, or pixel diff results.