Rotate Video
Fix sideways or upside-down clips by rotating or flipping video 90, 180 or 270 degrees. Free, private, no signup — it all works in your browser.
Everything runs inside your browser — your file is never uploaded to a server.
First run downloads the media engine (~30 MB) once, then it stays cached.
About this tool
Filming vertically on a phone or exporting from an old camera sometimes leaves you with a video that plays sideways or upside-down on every device. This tool rotates a video clip by 90, 180 or 270 degrees, or mirrors it horizontally or vertically, permanently baking the correct orientation into the file so it always plays right side up everywhere, not just in players that respect rotation metadata. Everything happens with FFmpeg compiled to WebAssembly directly in your browser tab, so the clip never touches a server, which matters for personal videos you'd rather keep private. The rotation is applied to every frame during a fast local re-encode, and audio is copied through untouched. It works with MP4, MOV, WebM and AVI files of any length, and because processing is local there's no waiting behind other people's uploads or worrying about a service running out of free minutes.
How to use this tool
1. Upload your video
Drag and drop the sideways or upside-down clip into the tool.
2. Pick a rotation
Choose 90°, 180°, 270°, or a horizontal/vertical flip.
3. Preview the orientation
Check the preview shows the video the right way up.
4. Download the fixed video
Save the correctly oriented clip to your device.
Why use this tool
Sideways videos are one of the most common annoyances after filming with a phone, especially when a clip is shared to a platform that doesn't respect rotation metadata. This tool fixes orientation permanently in one step, without desktop software, so the corrected video plays correctly everywhere it's shared, from group chats to social platforms to old media players.
Tips & best practices
- If a clip looks correct on your phone but sideways elsewhere, it likely has metadata rotation that needs baking in permanently.
- Use a mirror flip instead of rotation if a selfie video looks reversed rather than sideways.
- Check the exact orientation needed before processing a long video to avoid re-rotating it twice.
Common use cases
- Fixing a phone video that plays sideways when uploaded to a website.
- Correcting upside-down footage from an action camera mounted incorrectly.
- Mirroring a front-camera selfie video so text in the frame reads correctly.
- Preparing rotated dashcam footage for a straightforward, upright playback.
- Standardizing the orientation of multiple clips before combining them in an editor.
Frequently asked questions
Why does my video play sideways even though it looked fine when recording?
Phones often store a rotation flag in the metadata instead of rotating the actual pixels. Some players ignore that flag, causing sideways playback, which this tool permanently fixes.
Can I rotate a video by an angle other than 90 degrees?
This tool supports 90, 180 and 270 degree rotations plus horizontal and vertical flips, which cover the vast majority of orientation problems from phones and cameras.
Will rotating the video change its quality?
There is a light re-encode since pixels are physically rotated, but at a high quality setting the difference is imperceptible in normal viewing.
Does rotating affect the audio track?
No, the audio track is copied through unchanged; only the visual frames are rotated or flipped.
Is the rotated video watermarked or limited in length?
No, there is no watermark and no artificial length limit since everything processes locally on your device.
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