MP4 to FLAC Converter
Convert MP4 to FLAC online for free and extract audio from video. Use this converter for music tracks, lectures, interviews, podcast source files, and listening without the video stream.
Converting MP4 to FLAC extracts the audio track from the video and discards the visual frames. The result is typically 80–95% smaller than the source MP4 file and is suited for music players, podcast apps, or further audio editing.
Max file size 50MB. Sign up for more.
| File Name | Size | Convert To |
|---|
Checking files and selected output formats.
| File Name | File Size | Download |
|---|
How to Extract FLAC Audio from MP4 Video
Pull the audio track from any MP4 video and save it as a standalone FLAC file
Select a MP4 video file containing the audio you want to extract. Works with music videos, recorded lectures, podcast recordings, or any video with an audio track. There is no need to install editing software — the entire extraction happens in the cloud.
The audio track is separated from the video frames and encoded as FLAC. Video data is discarded cleanly — the resulting file contains only the audio at the selected quality level.
Download your extracted FLAC audio file — typically 90% smaller than the original video. Ready for music players, podcast apps, or further editing in any audio workstation. Files are deleted from our servers automatically after processing.
Why Convert MP4 to FLAC
FLAC compresses audio to 50-70% of WAV size while preserving every single bit of the original recording. You get identical quality to uncompressed audio at nearly half the storage cost.
Music enthusiasts and hi-fi listeners choose FLAC because it guarantees bit-perfect reproduction of the master recording. High-end DACs, headphone amps, and speakers reveal the quality difference.
FLAC supports Vorbis comments for extensive metadata tagging plus embedded album art. Music library managers like Roon, foobar2000, and JRiver display rich information from FLAC tags.
Tidal, Amazon Music HD, Apple Music Lossless, and Qobuz all deliver lossless streams based on FLAC encoding. Converting to FLAC gives you the same quality tier used by premium streaming services.
FLAC includes MD5 checksums and frame-level CRC checks that detect any data corruption during storage or transfer. You can verify that your FLAC files remain bit-perfect after copying or downloading.
MP4 vs FLAC: Side-by-side
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | MP4 | FLAC |
|---|---|---|
| Full name | MPEG-4 Part 14 | Free Lossless Audio Codec |
| Year introduced | 2001 | 2001 |
| Developer / standard body | MPEG | Xiph.Org |
| MIME type | video/mp4 | audio/flac |
| File extension | .mp4 / .m4v | .flac |
| Compression | H.264 or H.265 codec | Lossless |
| Color / data depth | 8/10-bit | N/A (audio) |
| Max dimensions / size | Codec-dependent (up to 8K) | 8 channels × 32-bit × 192 kHz |
| Transparency | No | No |
| Animation | No | No |
| Standard / specification | ISO/IEC 14496-14 | Xiph.Org FLAC |
| Best for | Universal video compatibility — plays on every device | Audiophile listening, lossless music archives |
About the MP4 Format
MP4 (MPEG-4 Part 14) is an ISO standard multimedia container format based on Apple's QuickTime file structure. It is the most widely supported video format in the world — capable of playing on virtually every device, browser, and platform without additional software. MP4 files typically contain H.264 or H.265 video streams paired with AAC audio, though the container can hold a variety of codec combinations.
MP4 is the default choice for video distribution across the web, social media, streaming platforms, and mobile devices. Its combination of broad compatibility, efficient compression, and reasonable quality makes it suitable for everything from casual smartphone recordings to professional video delivery. The main limitations of MP4 are its relatively basic subtitle support compared to MKV, and the fact that some advanced codec configurations may not be universally playable on older devices.
MP4 to FLAC FAQ
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert MP4 files to FLAC.
How do I convert MP4 to FLAC online?
Why would I convert MP4 to FLAC?
Is MP4 to FLAC the same as extracting audio from video?
Will the FLAC file be smaller than the original MP4 video?
What audio quality will I get from MP4 to FLAC conversion?
Can I batch convert multiple MP4 files to FLAC?
Is it safe to convert MP4 to FLAC online?
Video-to-Audio Guides for MP4 to FLAC Converter
Read practical guides about extracting audio from video, choosing output formats, and handling media compatibility.
How to Convert FLAC to MP3 Without Losing Quality
A practical guide to converting FLAC to MP3 — covering optimal bitrate settings for maximum quality, batch conversion methods, and the best free tools for Windows, Mac, and online.
How to Convert FLV to MP4: Fix Flash Video Files in 2026
FLV files won't play on modern devices. This guide shows you how to convert Flash Video to MP4 using free online and desktop tools — preserving quality and fixing compatibility issues.
How to Compress Files for Email Attachments (Under the Limit)
Email attachment too large? This guide shows you how to compress photos, documents, and videos to fit within Gmail (25MB), Outlook (20MB), and Yahoo Mail (25MB) limits — using free tools.
Best Audio Format for Podcasts: Recording to Publishing
Choosing the right audio format at each stage of podcast production matters. This guide covers the best formats for recording, editing, exporting, and publishing your podcast — with specific settings that work.
Video File Formats Explained: The Complete Conversion Guide
The complete guide to video file formats — MP4, MKV, AVI, MOV, WebM, FLV, and WMV explained. Understand the difference between containers and codecs, and learn which format works best for streaming, editing, and sharing.
H.264 vs H.265 (HEVC) vs AV1: Video Codecs Explained
A jargon-free explanation of the three most important video codecs — H.264, H.265 (HEVC), and AV1. Compare compression, quality, device support, and learn which codec fits your needs.