How to convert MOV to FLAC
- Click Choose files or drop your MOV video into the box above.
- Pick the sample rate if you need a specific one.
- Click Convert and download the FLAC when it is ready.
About MOV and FLAC
What is MOV?
MOV is Apple’s QuickTime format and what an iPhone records by default. MP4 was actually derived from it, so most MOV files contain the same kind of video and can often be converted to MP4 in seconds without re-encoding. Since iOS 11, iPhones record HEVC (H.265) video, which many Windows PCs, Android phones and websites cannot play — converting to MP4 with H.264 fixes that.
- Native on iPhone and Mac
- Supports pro codecs like ProRes
- HEVC MOV files often will not play on Windows or Android
- Some websites reject MOV uploads
What is FLAC?
FLAC compresses audio without losing a single bit, usually to about half the size of WAV. It is the favorite format of audiophiles and music archivists: you get perfect CD (or hi-res) quality with proper tags and cover art, at the cost of files several times larger than MP3.
- Lossless: identical to the original
- About half the size of WAV
- Full tags and cover art
- Much larger than MP3
- Not supported by some car stereos and older devices
Why GlideConvert?
- Private by design. Your files are converted on your own device by your browser — they are never uploaded to a server. That keeps them private, avoids upload waits and means there is no queue.
- Fast. Images convert in a fraction of a second; video uses your device’s hardware encoder.
- Free. No sign-up, no watermark. 10 images, 5 audio files or one video at a time — Pro lifts the limits and removes ads.
Frequently asked questions
Does converting MOV to FLAC keep the full audio quality?
FLAC is lossless, so nothing is lost — but if the source is a lossy format (MOV audio is usually AAC), the result cannot sound better than the original; it will only be bigger.
Why do my iPhone videos not play on Windows or Android?
Since iOS 11, iPhones record video with HEVC (H.265) compression to save space. Many Windows PCs, Android phones, TVs and websites cannot play HEVC. Converting to MP4 with H.264 — the default here — makes the video play everywhere.
Is there a file size limit?
On the free plan each video or audio file can be up to 500 MB and each image up to 100 MB. With Pro the limit is 4 GB per file. Because everything happens on your device, the practical limit for very large files is your device’s memory.
Are my files uploaded to a server?
No. GlideConvert runs entirely in your browser: images are processed with the browser’s built-in codecs and WebAssembly, video and audio with hardware-accelerated WebCodecs (or a WebAssembly build of FFmpeg for older formats). Nothing is sent anywhere — you can even disconnect from the internet once the page has loaded.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any up-to-date browser — Chrome, Edge, Safari, Firefox or Samsung Internet — on phones, tablets and computers, with nothing to install. On phones, extremely large images may be scaled down to fit within the browser’s memory limit; you will see a note if that happens.