Turn a sideways video upright, or mirror it, right in your browser. An MP4 or MOV rotates in about a second with every pixel copied exactly. No upload, no account, no watermark.
Reading your video…
Free, no watermark, no account. Videos up to 2 GB.
Three steps and a few seconds, with nothing to install and no account to make. It works in your browser, on a computer or a phone.
Drop a file on the page, or pick one from your phone's videos. MP4, MOV, WebM and MKV all work.
Rotate left or right a quarter turn at a time, and flip it left to right or top to bottom. The video on the page turns as you press, so you can see what you'll get.
Rotating an MP4 or MOV takes about a second and copies every pixel exactly. It's saved with the original's name: holiday.mov becomes holiday_ohsovideo.mov.
The phone was held the wrong way. A video shot with the phone rolled past a certain angle comes out sideways, and stays sideways everywhere you play it. A quarter turn puts it right.
The tripod or gimbal was upside down. Mounted cameras, dashcams and action cameras all manage to record upside down. That's a half turn.
A selfie video reads backwards. Front cameras mirror what they show you, and some save it mirrored: any writing in the shot comes out back to front. Flipping left to right fixes it.
Footage came back wrong from an app. Videos that have been through a messaging app or an editor sometimes lose their rotation and arrive on their side.
It needs to face the other way in the edit. Mirrored footage cuts together better when someone walks out of one shot and into the next from the same side. Once it's turned, you can trim video down to the part you need.
Rotate an MP4 or MOV here and nothing is re-encoded: the rotation is written into the file's own header, the picture is copied exactly, and the export takes about a second however big the file is. That's the same mechanism your phone already uses, which is why a video recorded sideways plays upright.
Not here. Your browser reads the video and writes the turned copy itself, on your device, and nothing is uploaded. Nothing is sent anywhere, so a confidential recording stays confidential.
Choose the video, press Rotate right or Rotate left until it looks correct, and export. This happens when a phone is held at an angle the camera reads wrongly, and the fix takes seconds.
Rotating turns the picture a quarter turn at a time, so a sideways video becomes upright. Flipping mirrors it: left to right makes a selfie video read the right way round, which matters when there's text in the shot, and top to bottom turns it upside down without turning it round.
A quarter turn swaps the video's sides: a 1920 by 1080 landscape clip comes out 1080 by 1920, portrait. That's usually what you want. Tick this instead and the video keeps the shape it started in, with the turned picture fitted in the middle and black bars either side — useful when whatever it's going into expects a particular shape. It has to be redrawn to do that, so it's re-encoded rather than copied.
A rotation is a number the file can carry, so it costs nothing to change. A mirror can be written the same way in theory, but almost nothing reads it correctly — Firefox ignores it, and ffmpeg's own reader reports a mirror as a half turn, which would show your video upside down instead of mirrored. So a flip is drawn into the picture and the video is re-encoded, at high quality. It takes longer than a rotation on the same video.
Yes. Open this page in your browser on an iPhone or an Android phone: there's no app to install, and the steps are the same as on a computer.
MP4, MOV, WebM and MKV, from phones, cameras and screen recorders. MP4 and MOV rotate instantly. WebM and MKV have nowhere to record a rotation, so those are re-encoded instead.
Yes. There's no account, no trial, no paywall and no limit on how many videos you turn.
No, never. What you save is your own picture, turned the way you asked and nothing else.
Rotation is read by everything modern: phones, computers, browsers, QuickTime, VLC, and Instagram, TikTok and YouTube when you upload — it's the same mechanism that makes a phone's portrait video play upright. A few old players ignore it and show the video the way it was recorded. If you hit one, tick "keep original aspect ratio", which redraws the picture rather than recording the rotation, so there is nothing left for a player to ignore.
Videos can be up to 2 GB. Rotating an MP4 or MOV is quick whatever the size, because nothing is re-encoded.
Your video's name with _ohsovideo added, such as holiday_ohsovideo.mp4, so it sits beside the original. The original is never changed.