Why this tool is useful
Correct mirrored camera footage or reverse left-to-right visual direction in a short private clip.
Local File Tools · runs locally
Private Horizontal Video Flip
Mirror a browser-decodable clip from left to right and export WebM without uploading the source video.
Ready. Your working data stays in this browser.
Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy.
How it works
The browser applies a negative horizontal canvas scale to every decoded frame and records the mirrored sequence as WebM.
Practical example
Mirror a short webcam recording horizontally and verify the unchanged duration and resolution in the result report.
Validation
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.