Lens Distortion Fixer
Fix barrel, pincushion, and fisheye distortion with live manual controls or optional automatic calibration in the Maximum profile.
Straighten curved horizons and bowed walls from wide-angle and action-camera shots. Fast and Medium use deterministic radial correction with live manual controls. Maximum optionally downloads a larger perspective-field model and runs automatic calibration before remapping the original full-resolution pixels.
How to Use Lens Distortion Fixer
- Upload an image: Upload one of the formats listed by the tool (JPG, PNG, WebP) and wait for the local preview.
- Adjust settings and process: Adjust the available controls, then run the selected image processing workflow in your browser.
- Review and download: Review the result, then download it in one of the formats offered by this tool.
Frequently asked questions
Which quality should I choose?
Fast avoids the model download and uses manual correction. Medium uses a higher-quality manual remap. Maximum downloads the automatic-calibration assets once, about 116.5 MB in total, and desktop-class hardware is recommended.
How do I fix a GoPro fisheye photo?
Choose Fisheye, adjust Correction strength until edge lines look straighter, and raise Zoom if you want to hide the outside border. Maximum can estimate calibration automatically for difficult images.
What is the difference between barrel and pincushion distortion?
Barrel bulges lines outward on wide-angle lenses; pincushion bends them inward on telephoto lenses. They require opposite correction directions.
What does Maximum do?
Maximum uses a perspective-field network and deterministic geometric optimization to estimate focal length and radial distortion, then remaps the original full-resolution pixels without synthesizing image content.
Is my photo uploaded anywhere?
Supported image content is not uploaded for processing. Automatic calibration, optimization, remapping, and export run in your browser; site analytics and the assistant are separate.