Sample FLAC File Download — Free Lossless Audio
Download free lossless audio sample files in FLAC format — 1MB to 50MB with exact file sizes. Use these FLAC test files for music archiving workflows, audiophile player testing, and studio pipeline validation. FLAC (Free Lossless Audio Codec) compresses audio to 50–60% of WAV size with zero quality loss — bit-for-bit identical when decoded.
sample-1mb.flac
10s · FLAC · 44100Hz · stereo · 16-bit
File details and verification
- Filename
- sample-1mb.flac
- Exact size
- 1,048,576 bytes
- Displayed size
- 1 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- e91de0220cb2eee870ded4d79ea54dd4822f94f712938ba5676848ca39c22f3f
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 10s
- Codec
- FLAC
- Sample rate
- 44,100 Hz
- Channels
- stereo
- Bit depth
- 16-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-1mb.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-5mb.flac
45s · FLAC · 44100Hz · stereo · 16-bit
File details and verification
- Filename
- sample-5mb.flac
- Exact size
- 5,242,880 bytes
- Displayed size
- 5 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 673d4c3633caa209dd88fdc30d2bb55be03fa78ef991e6269fbad4bd291c9ad8
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 45s
- Codec
- FLAC
- Sample rate
- 44,100 Hz
- Channels
- stereo
- Bit depth
- 16-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-5mb.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-10mb.flac
60s · FLAC · 48000Hz · stereo · 24-bit
File details and verification
- Filename
- sample-10mb.flac
- Exact size
- 10,485,760 bytes
- Displayed size
- 10 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- de92aca331ce67ef74afad2fa7f6caffbdf6f9d4fc35d9cda0af30d3efeb15fd
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 1m
- Codec
- FLAC
- Sample rate
- 48,000 Hz
- Channels
- stereo
- Bit depth
- 24-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-10mb.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-50mb.flac
300s · FLAC · 96000Hz · stereo · 24-bit
File details and verification
- Filename
- sample-50mb.flac
- Exact size
- 68,499,242 bytes
- Displayed size
- 65.33 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 2596ad62d8591bd0243bb295d1ec8d7e6f053abdc422101a1fe535f9cf0d2fb9
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 5m
- Codec
- FLAC
- Sample rate
- 96,000 Hz
- Channels
- stereo
- Bit depth
- 24-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-50mb.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-16bit-44khz.flac
30s · FLAC · 44100Hz · stereo · 16-bit
File details and verification
- Filename
- sample-16bit-44khz.flac
- Exact size
- 1,841,736 bytes
- Displayed size
- 1.76 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 7726f8918486805380fb095205bad48746c9a0be5cbda4ec548bcb5ccf257f7a
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 30s
- Codec
- FLAC
- Sample rate
- 44,100 Hz
- Channels
- stereo
- Bit depth
- 16-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-16bit-44khz.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-24bit-48khz.flac
30s · FLAC · 48000Hz · stereo · 24-bit
File details and verification
- Filename
- sample-24bit-48khz.flac
- Exact size
- 3,443,280 bytes
- Displayed size
- 3.28 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- a19e3416b47a3613b78ea3402139bed63e46dcba5c6b0b247491c24ae9e4ad8e
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 30s
- Codec
- FLAC
- Sample rate
- 48,000 Hz
- Channels
- stereo
- Bit depth
- 24-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-24bit-48khz.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-24bit-96khz.flac
30s · FLAC · 96000Hz · stereo · 24-bit
File details and verification
- Filename
- sample-24bit-96khz.flac
- Exact size
- 6,857,296 bytes
- Displayed size
- 6.54 MB
- Catalog status
- Valid catalog fixture
- SHA-256
- 69594a0f0be78990efda79b93a7c0e01b7440f52ed4de99fb667062d37190526
- Header signature
- Matched (fLaC)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Duration
- 30s
- Codec
- FLAC
- Sample rate
- 96,000 Hz
- Channels
- stereo
- Bit depth
- 24-bit
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/flac/sample-24bit-96khz.flac
See how TrueFileSize generates and measures sample files, or review the editorial policy.
Use cases for sample FLAC files
- Testing FLAC decoding and playback in audio players
- Verifying lossless audio upload and transcoding pipelines
- Benchmarking FLAC vs WAV vs MP3 file sizes and quality
- Testing 24-bit / 96kHz hi-res audio handling
- Validating metadata extraction (bit depth, sample rate, duration)
- Testing audio streaming services with lossless content
Lossless vs Lossy — FLAC vs MP3 vs WAV
| Feature | FLAC | WAV | MP3 |
|---|---|---|---|
| Compression | Lossless | None (raw PCM) | Lossy |
| File size (per min) | ~5 MB | ~10 MB | ~1 MB |
| Quality loss | None | None | Yes (irreversible) |
| Max bit depth | 32-bit | 32-bit | N/A |
| Max sample rate | 655350 Hz | Unlimited | 48000 Hz |
| Browser support | Chrome, Firefox, Edge | All browsers | All browsers |
| Best for | Archival, audiophile | Editing, mastering | Streaming, casual |
FLAC quality levels
| Quality | Bit depth | Sample rate | Use case |
|---|---|---|---|
| CD Quality | 16-bit | 44.1 kHz | Standard music, most listeners |
| Studio | 24-bit | 48 kHz | Video production, broadcast |
| Hi-Res | 24-bit | 96 kHz | Audiophile, mastering, archival |
How to convert to/from FLAC
# WAV to FLAC (lossless compression)
ffmpeg -i input.wav -c:a flac output.flac
# FLAC to WAV (lossless decompression)
ffmpeg -i input.flac output.wav
# FLAC to MP3 (lossy, for distribution)
ffmpeg -i input.flac -c:a libmp3lame -b:a 320k output.mp3
# MP3 to FLAC (preserves MP3 quality, does NOT restore lost data)
ffmpeg -i input.mp3 -c:a flac output.flacConverting lossy to FLAC does not improve quality — it only preserves the lossy audio without further degradation. Always start from a lossless source (WAV, AIFF) for true lossless FLAC.
Technical specifications
| Full name | Free Lossless Audio Codec |
| Compression | Lossless (50–60% of WAV) |
| Bit depths | 4 to 32-bit |
| Sample rates | 1 Hz to 655350 Hz |
| Channels | 1 to 8 |
| Metadata | Vorbis comments, album art |
| License | Open-source, royalty-free (BSD) |
| Developed by | Xiph.Org Foundation (2001) |
Frequently Asked Questions
What is FLAC?
FLAC vs MP3 quality — What is the difference?
FLAC vs WAV — Which should I use?
Can I play FLAC files on iPhone / Android?
Does converting MP3 to FLAC improve quality?
What is hi-res FLAC audio?
Other audio formats
Related reading
Test Upload Forms with Generated Files
A practical workflow for testing upload forms with generated TXT, CSV, JSON, XML, BIN, and SVG files. Includes custom file size checks up to 1GB.
Testing File Upload with Cypress — Using Real Sample Files
Complete guide to testing file upload in Cypress E2E tests. Download sample PDF, image, and video files from TrueFileSize, upload via cy.selectFile(), and assert results.
Testing File Upload with Playwright — Cross-Browser E2E Guide
Test file upload in Playwright across Chrome, Firefox, and Safari. Download sample files from TrueFileSize, use setInputFiles(), and test drag-drop, progress, and error handling.