Video Rotator & Flip

About this tool

Rotate a video in 90° steps or flip it horizontally/vertically — fixes a sideways phone recording or a mirrored screen capture. The preview updates instantly so you can see the result before exporting; the actual export re-encodes the video (H.264/AAC) using ffmpeg.wasm, a WebAssembly build of the real ffmpeg, entirely in your browser. Your video is never uploaded anywhere.

The ffmpeg engine (about 32MB) is only downloaded the first time you use this tool, not when the page loads.

Frequently asked questions

Why does exporting take a while?

Rotating or flipping a video's actual pixels (rather than just a metadata flag) requires re-encoding every frame — there's no shortcut, and this runs single-threaded WebAssembly with no hardware acceleration. Expect processing time comparable to or longer than the video's own length.

Can I rotate by an arbitrary angle, not just 90°?

Not with this tool — it only supports 90° steps and horizontal/vertical flips, the same as this site's Rotate & Flip Image tool.

Is my video uploaded anywhere?

No — the entire process, including the ffmpeg engine itself, runs locally in your browser via WebAssembly. Nothing is sent to any server.