Rotate Video

About Rotate Video

This free online video rotator fixes the video you filmed sideways. Drop the file in, press Left or Right until it looks right, then press Save video.

The preview turns instantly — that part costs nothing, because the video is only being tilted on screen. Nothing is rewritten until you press Save, so you can try all four directions without waiting for anything.

Everything happens in your browser. Your video is never uploaded, which matters when it is family footage or something filmed at work.

Why videos come out sideways

Phones do not actually rotate the picture when you turn them. They record the same way up every time and add a small note in the file — a *rotation flag* — saying "play this turned 90°".

Most players read that flag. Some do not: older TVs, projectors, editing programs and a lot of websites ignore it, and you get a video on its side.

This tool fixes it properly. It turns the actual picture and then clears the flag, so every player agrees. That is why a video fixed here stays fixed everywhere, unlike a file where only the flag was changed.

What each button does

• Left 90° and Right 90° — a quarter turn. Press twice for a half turn.
• Upside down — a half turn in one press, for footage shot with the phone the wrong way up.
• Mirror — flips left and right. This is the one for selfie and webcam video, where text comes out backwards.
• Flip vertically — turns the picture upside down without rotating it. Rare, but occasionally what a car dashcam or an action camera mounted upside down needs.

You can combine them. Rotate and mirror together is one save, not two.

Features

• Instant preview — the picture turns as you press, with no processing
• Quarter turns, half turns, mirror and vertical flip
• Clears the rotation flag so every player shows it the same way
• The sound is copied, not re-encoded — nothing about the audio changes
• Saves as MP4 with fast-start, so it begins playing before it has finished loading
• No upload, no account, no watermark, no file-size limit beyond your device

What people use it for

• Sideways phone videos — the most common one by far
• Webcam and selfie clips where the writing on your shirt reads backwards
• Dashcam and action camera footage from an upside-down mount
• Old camcorder files that ignore modern rotation flags
• Videos for a projector or TV that will not read the flag
• Uploads to a site that keeps showing your video on its side

Good to know

• The first save downloads the video engine (about 30 MB). That happens once per visit, not once per video.
• Saving takes roughly as long as the video is. A one-minute clip takes about a minute.
• A quarter turn swaps width and height — a 1920×1080 video becomes 1080×1920. That is correct, not a fault.
• The picture is re-encoded, so there is a small quality loss, the same as any video edit. The audio is untouched.
• If a file will not open, run it through the Video Converter on this site first and rotate the MP4.

How to use it

• Drop your video on the box, or click to choose one
• Press Left or Right until the preview looks right
• Add Mirror if the writing is backwards
• Press Save video and wait — the first time also loads the engine
• Press Download when it appears