FLAC Audio Converter

Convert to FLAC Hi-Fi

Create lossless FLAC files from any audio source. Perfect for audiophiles, archiving, and high-fidelity music collections.

Lossless compression Preserves metadata Archive quality

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Up to 100MB free • Output Format: FLAC

Secure & Private

Files deleted in 2h

Fast Processing

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Blazing Fast

How to Convert

Convert any file in seconds — no software, no sign-up required.

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Upload your audio file

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Why EasyConv

Why Use EasyConv

Professional-grade conversion with features designed for real-world workflows.

Lossless

No quality loss during conversion.

Smart Compression

Reduce file size while maintaining quality.

Quality Control

Adjust quality settings.

Preserves Metadata

Metadata and tags are preserved.

Audiophile Standard

Used by Bandcamp, Qobuz, and high-resolution music stores worldwide — FLAC is the preferred archival and distribution format for serious listeners.

Secure Processing

Files are processed securely.

300+ Formats

Supported Formats

Detailed breakdown of every format supported by this converter.

Format	Description	Extension	Use Case
WAV → FLAC	Compress lossless WAV to smaller FLAC	`.wav`	Archiving studio recordings, saving disk space
MP3 → FLAC	Wrap MP3 in FLAC container (no quality gain)	`.mp3`	Format unification of existing libraries
AAC → FLAC	Convert Apple AAC to open FLAC format	`.aac`	Moving away from Apple ecosystem
AIFF → FLAC	Apple lossless to open lossless standard	`.aiff`	Cross-platform archive conversion
OGG → FLAC	Convert Vorbis to lossless FLAC	`.ogg`	Upgrading game audio archives
M4A → FLAC	Convert Apple M4A/ALAC to FLAC	`.m4a`	iTunes library migration to open formats
MP4 → FLAC	Extract lossless audio from video	`.mp4`	Archiving concert video audio tracks

3 Simple Steps

Frequently Asked Questions

Everything you need to know about this conversion tool.

Yes. FLAC (Free Lossless Audio Codec) uses a prediction algorithm to compress audio without discarding any data. When decoded, the output is bit-for-bit identical to the original PCM audio.

No — all FLAC compression levels (0 through 8) produce identical audio quality. Higher levels take longer to encode but produce slightly smaller files. Level 5 is the default and a good balance.

Both are lossless codecs that compress audio without quality loss. FLAC is an open standard supported on virtually every platform. ALAC (Apple Lossless) is Apple's equivalent, used in .m4a files on Apple devices. Use our M4A Converter to convert between them.

No. Converting a lossy file to FLAC does not restore lost audio data. The FLAC file will contain the same audio information as the MP3 source, just stored in a lossless container. Always archive from the highest-quality source available.

FLAC is supported on Android, Windows, Linux, most hi-fi streamers (Sonos, Roon, Audirvana), Plex, VLC, and most modern DAPs (digital audio players). Apple devices support FLAC natively since iOS 11 and macOS Sierra.

A typical 3-minute stereo WAV at 44.1 kHz / 16-bit is about 30 MB. The equivalent FLAC file is typically 15–20 MB — roughly a 40–50% reduction with zero quality loss.

12M+ users trust us

Who Uses This Tool

Real-world use cases from professionals across different industries.

Music Archivist

Archive Your CD Rips Losslessly

Convert WAV CD rips to FLAC and cut archive size in half while ensuring the audio is bit-perfect for future use.

Audiophile

Build a Hi-Res Music Library

Store 24-bit / 96 kHz high-resolution music in FLAC — the format supported by Qobuz, Bandcamp, and audiophile streaming services.

Apple User

Migrate iTunes Library to Open Format

Convert M4A/ALAC files from your iTunes library to FLAC to gain cross-platform compatibility without any quality loss.

NAS / Plex User

Serve Lossless Audio on Plex or Roon

FLAC is natively supported by Plex, Roon, Jellyfin, and Audirvana — convert your WAV masters to FLAC for efficient storage on a home media server.

Bandcamp Artist

Upload Lossless for Fan Downloads

Bandcamp lets fans download in FLAC. Convert your WAV master to FLAC before uploading to offer the best lossless download option.

Film Producer

Archive Concert and Film Audio

Extract and archive the audio from concert MP4 files as FLAC — preserving the full dynamic range for documentary and archival use.

Why EasyConv

Comparison

See how we compare to other solutions

Feature	Our Tool EasyConv	Desktop App	Other Online
Lossless
24-bit hi-res
Smaller than WAV
Metadata
No installation
Open standard
Free

Technical Specifications

Detailed technical information about our conversion engine.

Limits

Max file size: 500 MB
Output compression level: 5 (default)
Multi-channel up to 8 channels

FFmpeg FLAC Lossless Hi-Res Vorbis Tags Open Source

Engine

FFmpeg 6.x · libFLAC encoder · compression level 0–8

Quality

Lossless up to 32-bit / 192 kHz; bit-perfect decode guaranteed

Speed

Typical encode: 5–20 seconds for a 100 MB WAV source

Security

HTTPS transfer · isolated temp dir · auto-purged in 2 h

Codec

FLAC (libFLAC)

Size vs WAV

40–60% smaller

Max Res

32-bit / 192 kHz

Auto-Delete

2 hours

Complete Guide

FLAC: The Audiophile Archive Format

FLAC (Free Lossless Audio Codec) occupies a unique position in digital audio: it combines the absolute quality of uncompressed PCM with the storage efficiency of compression. For anyone serious about preserving music in its original form, FLAC is the definitive choice for digital audio archives.

How FLAC Compression Works

Unlike MP3 or AAC which permanently discard inaudible frequencies, FLAC uses a reversible prediction algorithm. It models the correlation between audio samples, stores only the prediction residuals (errors), and applies entropy coding to those residuals. The result: a file 40–60% smaller than WAV that decodes identically to the original PCM — every sample, every time. The process is mathematically guaranteed to be lossless by the codec specification.

FLAC Compression Levels: Which Should You Choose?

FLAC offers compression levels 0 through 8. Contrary to intuition, the level never affects audio quality — all levels produce bit-perfect output. The only difference is encode/decode speed and resulting file size. Level 0 is fastest with the largest output; level 8 is slowest with the smallest. Level 5 is the widely used default: it compresses well and completes quickly enough for large libraries. For encoding thousands of files, level 3 or 4 is a practical compromise.

FLAC vs ALAC: Choosing Between Open and Apple

FLAC and Apple Lossless (ALAC) are both lossless codecs with equivalent audio quality. The key differences are ecosystem and openness. FLAC is an open standard maintained by the Xiph.Org Foundation, supported on Linux, Android, Windows, most hi-fi hardware, and (since iOS 11) Apple devices. ALAC is Apple's proprietary format stored in M4A containers — well supported in the Apple ecosystem but less universal. If you are not locked into Apple hardware, FLAC is the better long-term choice.

Metadata with FLAC: Vorbis Comment Tags

FLAC uses the Vorbis Comment standard for metadata, which is flexible and extensible. Beyond the standard tags (TITLE, ARTIST, ALBUM, DATE, TRACKNUMBER, GENRE), you can store LYRICS, REPLAYGAIN values, ISRC codes, and completely custom fields. Applications like MusicBrainz Picard, beets, and foobar2000 have full Vorbis Comment support and can automatically tag large FLAC libraries from online databases.

Building a FLAC Archive: Practical Recommendations

A well-organised FLAC library should follow consistent conventions: one album per folder, files named TrackNumber - Title.flac, embedded album art at 600×600 pixels or larger, and a separate cover.jpg in each folder for media server compatibility. Always keep your original WAV or CD rip — use FLAC as the archive format, and generate lossy copies (AAC 256k, MP3 320k) as needed for portable devices. A lossless archive is only valuable if you can always re-derive other formats from it.