Fish-Eye Effect in One Sentence
This tool bends a photo through a mathematically accurate wide-angle fisheye lens, ballooning the center outward and curving the edges, with full-frame or circular framing — all directly in your browser.
What a Fisheye Effect Actually Does
A fisheye is an ultra-wide lens that captures a hugely wide field of view by bending straight lines into curves. The center of the frame appears magnified and pushed toward you, while everything near the edges bows away and compresses.
A convincing fisheye effect recreates that geometry:
- a radial bulge that magnifies the center
- curved edges where straight lines bow outward
- strong edge compression as the frame wraps around
- optional circular framing with a black surround
- smooth interpolation so the bend stays clean, not blocky
Because the effect is purely geometric, it works on any photo and produces the same bend whether you preview a small version or export at full resolution.
What This Tool Does
This tool creates a polished optical fisheye effect from a single uploaded image using equidistant projection mapping.
You can:
- control the Curvature of the bend
- adjust Zoom to crop tighter or reveal more
- toggle a Circular frame for a round porthole
- use Surprise me ✨ to explore a new look randomly
- download the final image in the same format as the original file
Workflow & Usage
1. Add an image
Drag & drop or click to select a JPEG, PNG, or WebP image.
Fisheye effects work especially well on images with:
- a clear central subject
- straight lines (buildings, horizons, roads, rails)
- depth and perspective
- action or skate/BMX-style framing
2. Adjust Curvature
Use Curvature to control how strongly the image bends. Higher values balloon the center more and curve the edges harder to simulate a wider optical lens.
3. Adjust Zoom
Use Zoom to scale the distorted image. Zoom in to crop tighter and emphasize the center; zoom out to reveal more of the bent frame and its edges.
4. Toggle Circular frame
Turn on Circular frame to crop the lens into a round porthole with a black surround — the look of a true circular fisheye photo. Leave it off to fill the whole rectangular frame.
5. Use Surprise Me
Use Surprise me ✨ to jump to a new lens look and settings quickly.
6. Download
When the result looks right, download the final image. The preview is optimized for speed, while the export renders from the original image for better quality.
Understanding the Controls
Curvature
Practical ranges:
- 0–25 → gentle, natural wide-angle bend
- 25–60 → classic, clearly visible fisheye
- 60–100 → extreme, ballooned, almost spherical
Zoom
- Below 100% → zoom out, revealing more of the bent frame
- 100% → default framing
- Above 100% → zoom in, cropping tighter on the magnified center
Circular frame
Crops to a round porthole with a black surround. Great for a true circular-fisheye look or a stylized “lens” framing. Off fills the whole rectangle.
Best Settings
Use these as starting points.
Natural Wide Angle
- Curvature: 25–40
- Zoom: 100–110%
- Circular: off
Classic Skate / Action Fisheye
- Curvature: 50–65
- Zoom: 100–115%
- Circular: off
Dramatic Bulge
- Curvature: 80–100
- Zoom: 105–120%
- Circular: off
True Circular Fisheye
- Curvature: 65–85
- Zoom: 95–105%
- Circular: on
Best Images for a Fisheye Effect
Architecture and interiors
Buildings, hallways, and rooms gain dramatic curved lines and an immersive wide feel.
Action and sports
Skateboarding, BMX, and POV shots get the iconic ultra-wide look fisheye lenses are famous for.
Portraits and selfies
A central face balloons playfully while the background wraps around — fun, exaggerated, and bold.
Landscapes and horizons
Straight horizons bow into curves, giving a planet-like sense of scale.
Images That May Need Extra Care
Tightly cropped subjects
If the subject already fills the frame, strong curvature can cut off important detail. Lower the curvature or zoom out.
Text and logos
Straight text bends with the lens and can become hard to read. Use lower curvature where legibility matters.
Very low-resolution images
Magnifying the center stretches pixels. Bilinear sampling keeps it smooth, but very small images can still look soft when heavily bulged.
Perfect For
- skate, BMX, and action edits
- wide-angle architecture and interiors
- playful selfies and profile pictures
- music and album artwork
- retro GoPro / lo-fi looks
- circular “porthole” framing
- before/after creative transformations
How It Works
The effect is generated entirely in the browser using an equidistant fisheye projection algorithm.
A typical fisheye transformation works like this:
- The image is decoded locally.
- A working canvas is created for preview or full-resolution export.
- For every output pixel, its distance from the center is measured.
- A trigonometric curve maps that distance to a position in the source image — bulging the center outward and compressing the edges precisely like a physical lens.
- The source is sampled with bilinear interpolation for smooth, clean curves.
- Optional circular framing crops the lens to a round porthole with a feathered black edge.
- The result is exported in the original image format.
Because the bend is defined on the normalized radius, the geometry is identical in the preview and the full-size export.
Privacy and File Handling
This tool is privacy-first. Your image is processed locally in your browser using client-side rendering.
That means:
- the image is not uploaded to a server
- no account is required
- no waiting for server-side processing
- the effect can work offline after the page loads
- the final image is created directly on your device
Quality Notes
Preview vs Download
The preview is optimized for speed so you can adjust the effect quickly. The downloaded result is rendered from the original image, so it is designed for better final quality.
Original format export
The final download keeps the same format as your source image when possible:
- JPEG stays JPEG
- PNG stays PNG
- WebP stays WebP
This keeps the workflow simple and avoids unnecessary format decisions.
Sampling quality
Each output pixel is sampled from the source with bilinear interpolation, which keeps the magnified center and curved edges smooth rather than blocky.
