All tools › Turn and crop
Round the corners
Rounds any of the four corners, and warns before a format that would fill them in black.
It runs entirely in this browser tab: the file you open is never uploaded, and the result is re-encoded from pixels, so its metadata does not come with it.
Settings
- Radius
- Past half the shorter side it is a full semicircle. A number from 0 to 400.
- Which
- Choices: All four, Top two, Bottom two, A quarter left, A quarter right.
- Colour underneath
- Leave it empty to keep the corners transparent.
- Save as
- Only PNG keeps transparency. JPEG fills it in. Choices: PNG, JPEG.
- Quality
- Below about seventy the blocking starts to show. A number from 1 to 100.
How to use it
- Paste your text into the box above, or open a file.
- Adjust the settings beside it until the result is what you wanted.
- Copy the result, or save it as a file. The result updates as you type.
Questions
- Is my picture uploaded anywhere?
- No. The whole application is carried as WebAssembly and runs on your own device. There is no server to send anything to, and none of these tools makes a network request while it works — not even the one that reads a photograph's location, which is why it gives coordinates rather than drawing a map.
- What happens to the EXIF data?
- It is gone. Every result here is written from pixels, so the camera, the date, the location and the copyright field are all dropped. That is the point of the location tool and a surprise to anybody who wanted the copyright kept, which is why every result says so.
- Is a blur enough to hide something?
- Usually not. A blur and a pixelation are averages of what was there, and both have been reversed in published work by blurring candidate images the same way and comparing. Only a solid fill or noise removes the information, and the tools say which method you chose.
- Why is the example a test pattern rather than a photograph?
- Because this workspace ships no image files anywhere, and a base64 photograph pasted into a source file would be one wearing a disguise. The patterns are drawn from nothing when the button is pressed.
Other tools for turn and crop
Rotate and flip
A quarter turn loses nothing; any other angle resamples, and the result says which.
Fix photo orientation
Turns a photograph the way its own EXIF flag says, and says when there is no flag to obey.
Mirror symmetry
Folds one half onto the other, or unfolds the whole beside its reflection.
Pad to a ratio
Adds margins until the image fits a frame, and crops nothing at all.
Crop to a circle
Takes the middle square first, which is what an oblong photograph in a round frame needs.
All thirty-five tools