Free AI Skin Cancer Checker — Instant Online Lesion Screening

Yes. ScanSkinAI is a free skin cancer checker online — upload a photo of a mole, lesion or skin concern and get AI screening guidance in about 30 seconds. It screens for visible signs associated with melanoma, basal cell carcinoma and squamous cell carcinoma. It is a screening-support tool, not a diagnostic device, and any concerning result should be reviewed by a clinician.

ScanSkinAI is a screening-support tool, not a diagnostic device. The model is trained on dermatologist-labelled images from public datasets such as HAM10000 and DermNet. Real-world performance varies with image quality, lesion type and skin tone. See our Evidence Base for methodology. Any concerning result should be reviewed by a clinician.

Skin cancer can appear as a new or changing mole, a sore that doesn't heal, a shiny or pearly bump, a rough scaly patch, or a dark streak under a nail. Use the ABCDE rule: Asymmetry, Border irregularity, Colour variation, Diameter over 6mm, and Evolving appearance. When in doubt, get it checked.

Our AI can detect signs of melanoma, basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and actinic keratosis (precancerous condition). It analyzes multiple visual characteristics including asymmetry, border irregularity, color variation, and diameter.

If you receive a high-concern result, you should schedule an appointment with a dermatologist within 1-2 weeks. Print or save your results to share with your doctor. Do not panic—high concern means the lesion warrants professional evaluation, not that you definitely have cancer.

Yes, our AI is specifically trained to identify visual signs associated with melanoma, the most dangerous form of skin cancer. It analyzes the ABCDE criteria (Asymmetry, Border, Color, Diameter, Evolution) that dermatologists use. However, definitive melanoma diagnosis requires a biopsy.

For best results: use natural daylight (not flash), hold your camera 4-6 inches from the lesion, ensure sharp focus on the spot, include a small ruler or coin for scale reference, capture surrounding normal skin for comparison, and clean your camera lens before shooting.

AI performance can vary across skin tones. Our model is trained on diverse datasets, but historically, dermatology AI has had less training data for darker skin tones. We recommend all users, especially those with Fitzpatrick skin types V-VI, use this as one tool among regular dermatologist visits.

Seek urgent medical care if you notice: a lesion that bleeds or oozes without injury, rapid size or color change over days/weeks, a sore that won't heal after 3 weeks, severe pain or itching, or multiple warning signs (asymmetry + irregular border + multiple colors). These warrant same-week evaluation.

No. This is a screening support tool, not a diagnostic device. Only a qualified healthcare provider can diagnose skin cancer, typically requiring a physical examination and often a biopsy. Our tool helps you identify spots that may need professional evaluation.

Dermatologists recommend monthly full-body self-exams. Use our tool to check any new or changing spots. High-risk individuals (fair skin, history of sunburns, family history of skin cancer, many moles, or immunosuppression) should also have annual professional skin exams.

Yes, registered users can save scan results to track changes in specific spots over time. Monitoring evolution is crucial—the 'E' in ABCDE—because changing moles are more concerning than stable ones, even if they look unusual.

A dermatologist provides hands-on examination, can use dermoscopy for magnified views, assess your full medical history, perform biopsies, and provide definitive diagnosis and treatment. Our tool offers convenient initial screening to help you decide which spots warrant professional attention.

Yes. Photos are encrypted in transit and at rest using industry-standard protocols. Images are not stored permanently unless you choose to save them for tracking. We do not sell your data or share images with third-party advertisers. See our Privacy Policy for full details.

Trust your instincts. If a spot concerns you—especially if it's new, changing, or looks different from your other moles—see a dermatologist regardless of our result. AI screening is a helpful tool, but your observations and a doctor's expertise are invaluable.

ScanSkinAI uses deep-learning neural networks trained on large public and licensed dermatology image datasets. It analyses visual patterns — shape, colour distribution, texture and borders — that correlate with benign versus potentially malignant lesions, similar to what a clinician assesses visually. It does not perform dermoscopy or biopsy.

Yes, you can check as many spots as needed. We recommend checking any spot that looks different from your other moles, has changed recently, is new (especially in adults over 30), or shows any ABCDE warning signs.

Everyone should perform monthly self-exams. Higher-risk individuals should screen more frequently and see a dermatologist annually: those with fair skin, history of severe sunburns, family history of melanoma, 50+ moles, prior skin cancer, or weakened immune systems.

ABCDE is a memory aid for melanoma warning signs: Asymmetry (one half unlike the other), Border (irregular, scalloped edges), Color (varied shades of brown, black, red, white, or blue), Diameter (larger than 6mm, about pencil eraser size), and Evolution (changing in size, shape, or color).

Online screening is an excellent first step for early detection and helps prioritize which spots need professional evaluation. However, it cannot replace a dermatologist's clinical judgment, dermoscopy examination, or the ability to perform a biopsy for definitive diagnosis.