01
Pick a folder, then two photos
Choose a folder with up to 200 photos, then click photo A and photo B, the two ends of your bridge.
Free toolIn your browserNo upload
Semantic Image Comparison: Semantic Bridge
Compare any two photos by meaning: the AI finds the path of real photos that connects them.
Free AI. No uploads. No registration. No credit card. Everything runs locally in your browser. Your photos never leave your computer.
✓100% Free✓No registration✓No account required✓No credit card✓Runs entirely in your browser✓Images never leave your computer✓AI processed locally✓Fast WebGPU acceleration✓Nothing stored on our servers
Connect two memories with your own photos
Start on your Mac with 200 photos. Unlock PhotoCore Full to index your complete archive across folders, external drives, and NAS.
How it works
Local AI, in three steps
02
The AI walks the meaning space
Both photos are SigLIP 2 embeddings, points in a 768-dimensional space. The tool interpolates along the spherical geodesic between them (SLERP) and generates ideal waypoints at each step.
03
Real photos fill the gaps
For every waypoint, the algorithm picks the real photo from your folder that best matches it, weighing affinity to the target (70%) and continuity with the previous step (30%), so the path flows instead of jumping. Every photo in the bridge is really yours.
04
Download PhotoCore for your complete archive
The browser tools are built for quick analysis of up to 200 photos. PhotoCore for Mac indexes your complete archive, works completely offline and keeps your AI index permanently on your computer.
The comparison
Why it's different
Privacy by architecture
Your privacy comes first
- ✓Your images are never uploaded.
- ✓Everything happens inside your browser.
- ✓We never store your photos.
- ✓We never see your files.
- ✓No login.
- ✓No tracking of your images.
- ✓No cloud processing.
Most "online photo tools" send your images to a server. This one works the other way around: the AI model (~95 MB, one-time download from the Hugging Face CDN) comes to you, and everything after that happens on your device. Verify it yourself: open your browser's DevTools → Network tab. After the model download you will see zero outgoing requests while Semantic Bridge works through your photos. The page's Content-Security-Policy technically blocks connections to any host other than the model CDN, so your photos cannot be uploaded, even by accident.
This is the same philosophy as the PhotoCore app for Mac: your entire photo archive, organized and searchable by meaning, with zero cloud, on drives you own, even offline.
FAQ
Questions, answered
What does Semantic Bridge mean?
It answers "which images connect these two?" instead of "which are similar?". The AI walks the shortest path between the meanings of two photos and, at each step, picks the real photo from your folder that best represents that intermediate meaning.
How are two images compared?
Both become 768-dimensional SigLIP 2 embeddings. The tool interpolates along the spherical geodesic between them (SLERP) and scores candidates by cosine similarity, weighing affinity to the ideal waypoint (70%) and continuity with the previous step (30%).
Can I compare different file types?
Yes. Any supported image format (JPEG, PNG, WebP, GIF, BMP) can be mixed freely: the comparison happens on meaning, not on file format.
Does it work without metadata?
Yes. The bridge uses only the pixel content of the images. No EXIF, tags, dates or filenames are needed, or read, to build the path.
Why are my bridges short or repetitive?
With up to 200 photos the candidate pool is small. The more photos, and the more varied, the more surprising the paths. PhotoCore for Mac builds bridges across your entire archive.
Is this tool really free?
Yes. No payment, subscription or trial is required. The browser tools are completely free, up to 200 photos per folder.
Do I need to create an account?
No. Just open the page and start using it. No login, no email, nothing to sign up for.
Do I need a credit card?
No. There is nothing to pay and nothing to unlock.
Are my images uploaded?
Never. The AI model is downloaded to your browser, and every photo is analyzed on your device. The page's Content-Security-Policy technically prevents any upload.
Where does the AI run?
Inside your browser, using your computer's GPU (WebGPU) or CPU (WebAssembly). The model is SigLIP 2, the same one used by the PhotoCore Mac app.
Can you see my photos?
No. Your photos never reach our servers, we have nothing to see. There are no image trackers and no analytics on your files.
Do you store anything?
No images are sent to our servers. Results live only in your browser; a local cache (embeddings and thumbnails) stays on your device and you can clear it anytime from your browser settings.
Does it work offline?
Once the page and the AI model are loaded, all photo analysis happens locally. The one-time model download (~95 MB) is the only thing that needs a connection.
Which browsers are supported?
Chrome and Edge give the best experience (WebGPU acceleration and folder access). Safari and Firefox work too, with automatic fallbacks.
Is there a limit?
The browser version is intended for quick analysis, up to 200 photos per folder. Start on your Mac with 200 photos. Unlock PhotoCore Full to index your complete archive across folders, external drives, and NAS.
Related reading: Semantic Bridge in the PhotoCore app · Constellation · How semantic photo search works
PhotoCore Tools
More free PhotoCore tools
Semantic Photo SearchSearch your photos by describing them, no upload.AI Photo OrganizerAuto-group your photos by visual content.Duplicate Photo FinderFind exact and near-duplicate photos, read-only.Constellation: Similarity MapSee your whole folder as a 2D similarity map.Best Shot PickerElect the best shot of every burst, with reasons.
Looking for more?
Liked the demo? The app is the real thing.
These browser tools are designed for quick analysis. PhotoCore for Mac indexes your complete archive, searches 10,000 indexed photos in under 50 ms, works completely offline and keeps your AI index permanently on your computer.
Free AI. No uploads. No registration. No credit card. Everything runs locally in your browser. Your photos never leave your computer.
Download on Mac App Store