Convert QT to MOV — Free Online Converter
Convert QuickTime (.qt) to QuickTime Movie (.mov) online for free. Fast, secure video conversion with no watermarks or registration....
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変換方法
Upload your .mov file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mov file when it's ready.
About MOV to MOV Conversion
QuickTime (.qt) and MOV (.mov) are technically the same format — both use Apple's atom/box container structure developed alongside the QuickTime multimedia framework in 1991. The .qt extension was used primarily in the early years of QuickTime (versions 1-4), while .mov became the de facto standard extension. Converting QT to MOV is essentially a container rename that ensures modern software recognizes the file correctly.
Why Convert MOV to MOV?
Despite being internally identical, many modern applications recognize .mov but not .qt extension. macOS Finder, QuickTime Player X, Final Cut Pro, and numerous video editing tools associate .mov with their media handling routines. Renaming .qt to .mov often works, but a proper conversion ensures the internal atom structure is updated and compatible with current QuickTime specifications.
Common Use Cases
- Making old QuickTime 2/3 era files compatible with modern macOS applications
- Ensuring Final Cut Pro recognizes legacy QT files for import
- Updating QT file metadata and atom ordering for modern Apple software compatibility
- Preparing legacy QT archives for inclusion in contemporary video projects
- Fixing QT files with outdated atom structures that cause playback issues
How It Works
In most cases, FFmpeg remuxes the QT file into a MOV container without re-encoding — the video and audio streams are copied directly. The internal atoms are rewritten to conform to current MOV specifications, including proper 'ftyp' atom (file type), 'moov' atom ordering, and 'uuid' atom handling. For very old QT files with obsolete codecs, re-encoding to H.264/AAC may be necessary.
Quality & Performance
When remuxing, quality is bit-identical to the source — no re-encoding occurs. The operation completes in seconds regardless of file duration. Only when codec incompatibility forces re-encoding will there be any quality change.
Device Compatibility
| Device | MOV | MOV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
TikTok
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Twitter/X
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Discord
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
Tips for Best Results
- 1Try simply renaming .qt to .mov first — if the file plays correctly, no conversion is needed.
- 2Use remux mode (stream copy) to preserve original quality and convert instantly.
- 3If the QT file uses Sorenson Video 3 or other legacy codecs, you'll need to re-encode to H.264 for modern macOS compatibility.
- 4After conversion, verify the MOV file opens in both QuickTime Player and your target editing application before deleting the QT original.
Related Conversions
QT to MOV conversion is the simplest path to making legacy QuickTime files work with modern Apple software. Since the formats are structurally identical, this is typically a near-instant lossless remux operation.