Rotate Video Online: Rotate 90°, Flip & Straighten Free

How to rotate a video that plays sideways

Fix a sideways or upside-down video, mirror a selfie clip or straighten a tilted horizon. Rotate by 90, 180 or 270 degrees, flip horizontally or vertically, fine-tune the angle with auto-zoom, and trim if needed. Choose Instant mode for a lossless fix in about a second, or re-encode for maximum compatibility.

Phones store videos in the orientation the sensor was held and add a rotation flag; when that flag is missing or wrong, the video plays sideways or upside down. Load the file, press 90° right or 90° left until the preview is upright, and export. Rotating by 90° or 270° swaps width and height, so a 1920 × 1080 landscape clip becomes a 1080 × 1920 portrait one.

Features

Rotate 90° left, 90° right, 180° or 270°
Flip horizontally (mirror) or vertically
Straighten tilted video by up to ±45° with auto-zoom
Instant mode: lossless rotation in about a second
Re-encode mode bakes the rotation into the pixels
Optional trim in the same export
Live preview, audio preserved
MP4 or WebM output, no upload, no watermark

How to use Rotate & Flip Video

1
Load the video
Drop or choose your MP4, MOV, WebM or MKV file.
2
Rotate or flip
Use the 90° buttons, the angle presets or the flip buttons until the preview is correct.
3
Straighten (optional)
Drag the Straighten slider to level a tilted horizon.
4
Pick the output
Instant for a lossless fix, or Re-encode for maximum compatibility; trim if needed.
5
Export and download
Click Export and save the corrected video.

Common use cases

Fix a phone video recorded sideways or upside down
Mirror selfie or webcam footage
Turn landscape footage into portrait orientation
Level a tilted horizon in travel or drone footage
Correct videos before uploading to YouTube or Instagram
Flip a clip for creative transitions

Detailed guide

Instant (lossless) or re-encode?

Instant mode rewrites only the orientation metadata: the picture and sound are copied untouched, so it finishes in about a second with zero quality loss. Re-encode mode rotates every pixel, which works even in old players and on upload sites that ignore orientation flags. Straightening always needs re-encoding.

Mode	Speed	Quality	Works everywhere
Instant	About 1 second	100% original	Nearly all modern players and apps
Re-encode	Faster than real time	Visually lossless (High/Best)	Yes, including old TVs and editors

Mirror or flip a video

Flip horizontally to mirror a clip, for example selfie footage where text appears reversed, or to change which way a subject faces. Flip vertically to turn a clip upside down. Rotation and flips can be combined, and Reset all brings you back to the original.

Straighten a tilted horizon

The Straighten slider rotates the video by fractions of a degree, up to ±45°. With Auto-zoom on, the tool zooms in just enough that no black corners appear, the same technique professional editors use. Turn it off to keep the full picture with black corners.

Next steps

Once the orientation is right you may want a different shape for social media, or to trim and loop the clip.

Resize for Reels, TikTok and Shorts Check a video's rotation metadata Loop or boomerang the clip

Frequently asked questions

How do I rotate a video and save it?

Load the video, press 90° right or 90° left until it is upright, then click Export and download the new file.

Does rotating reduce quality?

Not in Instant mode, which only changes the orientation flag and copies the video untouched. Re-encode mode is visually lossless at High or Best quality.

Why does my video still look sideways in some apps?

Some old players ignore the orientation flag that Instant mode writes. Export again with Re-encode to bake the rotation into the pixels.

Can I rotate and flip together?

Yes. Combine any rotation with a horizontal or vertical flip, and optionally straighten the angle.

How do I fix a slightly tilted video?

Use the Straighten slider (up to ±45°). Auto-zoom crops in slightly so there are no black corners.

Is the audio kept?

Yes. The soundtrack is copied untouched.

Is the video uploaded?

No. Everything runs in your browser.

Rotate Video Online: Rotate 90°, 180°, Flip and Straighten

How to rotate a video that plays sideways

Features

How to use Rotate & Flip Video

Load the video

Rotate or flip

Straighten (optional)

Pick the output

Export and download

Common use cases