Most online face analysis sites ask you to upload a selfie to their servers. Ours do not. Every PrismaTest photo tool downloads an open-source model into your browser and analyses your photo on your own device. We never receive, see or store your picture.
Choose a Tool
| Tool | What it tells you |
|---|---|
| Face Shape Detector | Oval, round, square, heart, diamond or oblong, with your measurements |
| How Old Do I Look? | An age estimate with an honest margin of error |
| Eye Colour Detector | The colour of your irises, measured pixel by pixel |
| AI Colour Analysis | Your seasonal colour type and a palette to wear |
| Face Symmetry and Proportions Test | How symmetrical your face is and how it compares with classical proportions |
| Hair Colour and Hairstyle Changer | Realistic new hair colours on your own hair, plus haircut sketches |
| Kibbe Face Lines Analysis | Whether your facial lines read sharp, soft or balanced |
| Virtual Make-Up Try-On | Lipstick, blush and eyeshadow shades on your own face |
How Our Photo Tools Work
- You agree first. Each tool explains what it measures and asks you to tick a consent box before you can choose a photo.
- Your browser downloads the model. The code and model files come from public open-source libraries. Your browser fetches them once and caches them.
- The analysis runs on your device. Your photo is drawn onto a canvas in the page and analysed there. It is not sent anywhere.
- You see the measurements. Results show the numbers behind them, so you can judge how much to trust them.
- You remove it. Press “Remove my photo” or close the page and the photo is gone. Nothing is saved.
The Models We Use
| Model | Used for | Licence |
|---|---|---|
| MediaPipe Face Landmarker (Google) | Finds 478 points on your face, including the irises | Apache 2.0 |
| MediaPipe Hair Segmenter (Google) | Finds which pixels are hair, for hair colour changes | Apache 2.0 |
| face-api age model (open source, maintained by Vladimir Mandic) | Estimates age | MIT |
Everything after the landmark step is our own transparent arithmetic: ratios, angles and colour averages that each tool page explains. None of the tools judges your worth or attractiveness.
Getting the Best Results
- Face the camera straight on, with your head level.
- Use soft, even daylight. Avoid coloured lamps, strong shadows and beauty filters.
- Pull your hair back from your forehead and jaw for shape tools.
- Remove glasses for eye colour and symmetry.
- Try two or three photos. If results change between photos, the truth is probably somewhere in between.
Limits You Should Know
- Photos distort. Wide-angle phone lenses held close make noses and foreheads look bigger, which affects measurements.
- Lighting changes colour. White balance can shift skin and eye colour readings considerably.
- Models have blind spots. Face models perform less well on some faces, ages and skin tones than others, and an age estimate can be several years out.
- These are style and curiosity tools. They are not medical, identity or professional beauty assessments.
Your Privacy in Short
We do not run any server-side face analysis, and we do not collect biometric data. The only things that leave your device are ordinary requests for the code and model files, which reach the public servers that host them (jsDelivr and Google), the same way loading any web library does. See our privacy policy and how we use AI.
Frequently Asked Questions
Do you store my photo?
No. Your photo is processed in your browser and never uploaded to PrismaTest or anyone else.
Why do I have to tick a box first?
Face measurements are personal data. We want you to know exactly what happens before any analysis starts, and to confirm the photo is of you or someone who agreed.
Do the tools work offline?
Once the model files have downloaded, the analysis itself needs no connection.
Were the illustrations on these pages made with AI?
Yes. The illustrations were generated with Google’s image tools and selected and edited by us. They show no real people.
For entertainment and self-reflection. Not a medical, identity or professional assessment.