A fisheye lens effect is a strong barrel distortion that makes the center of an image appear magnified and bulging outward, mimicking the look of a wide-angle fisheye camera lens. It's widely used in photography, creative editing, and social media content to add a fun, surreal, or dramatic perspective to images. Our tool lets you apply both Bulge (outward expansion) and Pinch (inward contraction) variations.

Bulge pushes pixels outward from the center, making the central area appear larger and more prominent — like a magnifying glass or a convex mirror. Pinch pulls pixels inward toward the center, creating a sucked-in, concave appearance. Positive strength values produce a bulge effect; negative values produce a pinch. You can smoothly transition between the two using the strength slider.

No. Everything happens locally in your browser. Your images are never uploaded to any server. The fisheye distortion is computed entirely using the HTML5 Canvas API on your device. This means complete privacy — you can edit sensitive photos without worrying about data leaks. Even the download is generated client-side from the processed canvas data.

We support all common web image formats: JPEG, PNG, WebP, GIF, BMP, and TIFF (browser-dependent). For animated GIFs, only the first frame is processed. The downloaded result is always a PNG file for maximum quality. If you need JPEG output, you can convert it afterward using any image converter.

The fisheye effect processes every single pixel of your image through a mathematical remapping function. A 12-megapixel photo contains 12 million pixels — each requiring coordinate transformation and bilinear interpolation. Preview processing is fast (done on a scaled-down version), but full-resolution download may take 1–4 seconds depending on image size and your device's CPU speed. We cap processing at 4000px on the longest side to ensure reliability.

Absolutely! The tool is fully responsive and optimized for mobile devices. You can tap to upload from your photo library, drag sliders with touch-friendly controls, and hold the preview to compare with the original. All processing runs on your phone's browser — no app installation needed. Works great on iOS Safari and Android Chrome.

The Radius controls how far the distortion extends from the image center. At 100%, the effect reaches all the way to the edges. At 50%, only the inner half of the image is affected, while the outer portion remains unchanged. Lower radius values create a more localized bubble-like effect centered in the frame. The transition at the radius boundary is smoothly faded to avoid harsh edges.

Yes, completely free with no hidden costs, no watermark, and no sign-up required. There are no usage limits — you can process as many images as you want. Since everything runs in your browser, we don't incur server costs per image, which allows us to offer this tool for free indefinitely.