Image Compare Studio

Create professional before/after image comparisons with precise manual alignment, a draggable slider viewer, and one-click export.

Image Compare Studio turns any two photos into a professional before/after comparison — entirely inside your browser, with no server and no data ever leaving your machine. WORKFLOW Drop in a Before and an After image, drag/zoom/rotate the After image into place, lock the alignment, then compare with a smooth draggable slider. Export the result as an image or a standalone interactive page. ALIGNMENT • Drag to move, scroll wheel to zoom (15% steps), fine rotation controls, horizontal/vertical flip • Adjustable opacity overlay while aligning • Grid overlay, center guides, and snap-to-center for precise positioning • Undo/redo history COMPARISON VIEWER • Draggable slider, horizontal or vertical • Side-by-side and onion-skin (overlay) modes • Pixel-inspection magnifier • Fullscreen mode EXPORT • PNG or JPEG at full resolution (up to 10000×10000px) • Standalone interactive HTML page — works offline, no dependencies, share it anywhere PROJECTS Save your comparisons and reopen them any time from the sidebar or the extension popup. Rename, duplicate, or delete projects, with autosave built in. DESIGN Light, dark, and system themes, a high-contrast mode, and full keyboard navigation. Available in English and Italian. PRIVACY Everything happens locally in your browser. No images, projects, or settings are ever sent anywhere — the extension has no network permissions at all.