🌤️ Sky Replacement Tool

Our tool detects sky based on two key factors: brightness (sky is typically brighter than foreground) and position (sky is usually at the top of the image). The Sky Threshold slider lets you control sensitivity — lower values detect more sky, higher values detect less. For best results, start with the auto-detected threshold (180) and adjust up or down as needed.

Landscape photos with a clear horizon line work best. Photos with buildings, mountains, or trees creating a natural boundary between sky and foreground produce the most realistic results. Avoid photos where the sky blends into the foreground (like snow scenes) or where the subject extends into the sky area significantly.

Yes! Click "Upload custom sky image" under Custom Sky section. Use any JPG, PNG, or WebP image with a nice sky — sunset photos, cloud formations, starry nights, or even your own custom gradients. The tool will automatically scale and blend your custom sky into the photo.

Blend Amount (0-100%): Controls how strongly the new sky blends with the original image at the horizon. Higher values create smoother transitions. Edge Feather (0-20): Softens the edges between sky and foreground, reducing visible seams on trees, buildings, or mountains. For most photos, start with Blend 80% and Feather 5.

For real estate photos, Blue Sky is the most popular choice — it looks natural and professional. Golden Hour creates warm, inviting exteriors perfect for sunset marketing. Cloudy works well for moody, dramatic shots. Avoid overly dramatic skies like Aurora or Storm for standard real estate listings unless the property theme matches.

Absolutely! All processing happens locally in your browser using HTML5 Canvas API. Your images never leave your device — no uploads, no servers, no third parties. This makes it 100% secure for real estate photos, client work, and any sensitive images. You can even use the tool offline after the page loads.