Why this tool is useful
Use Flip Image Horizontally or Vertically when you need to mirror an image across its horizontal or vertical axis while keeping the source file on your device.

Mirror an image across its horizontal or vertical axis entirely in your browser without uploading the selected file.
Ready. Your working data stays in this browser.
Files stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy.
Use Flip Image Horizontally or Vertically when you need to mirror an image across its horizontal or vertical axis while keeping the source file on your device.
The browser validates the declared file type and 50 MiB limit, then runs the image flip operation locally. No downloader job or proxy is involved.
Choose a supported file, review the locally produced flip direction, and download a result only when this operation creates one.
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.