YouTube has the world's largest music library, but its audio is compressed in lossy AAC format by default, offering no native lossless quality. For those seeking high-fidelity audio, saving YouTube videos in the FLAC format maximizes the preservation of original sound quality and metadata, while also ensuring compatibility with professional software. This article will take you to the best 5 YouTube to FLAC converters in 2025 to help you get the most from your music.
FLAC is a lossless audio format, while MP3 uses lossy compression. There are significant differences between the two formats in terms of sound quality, file size, and compatibility. Let's take a look at FLAC vs MP3.
FLAC (Free Lossless Audio Codec) is a lossless audio encoding format that reduces file size without sacrificing sound quality. It preserves all the detail and dynamic range of the original studio tracks, making it a popular choice for hi-fi, DJ mixing, music production, and music collection.
| Format | FLAC | MP3 |
|---|---|---|
| Compression | Lossless | Lossy |
| Sound quality | Original sound restoration (Hi-Fi) | Average sound quality |
| File size | Larger | Smaller |
| Metadata Support | Full Support | Full Support |
| Editing | Suitable for audio editing and mixing | The sound quality is lost more after editing |
| Playback Device | Hi-Fi players, DJ software, music production tools | Mobile phones, Car players, Universal players |
| Best For | Music enthusiasts, DJs, Collectors | General audience |
Sidify All-In-One is a professional FLAC music downloader that supports downloading music from all major platforms, including YouTube, Spotify, Apple Music, Tidal, and Amazon Music, to the lossless FLAC format. It preserves Hi-Res quality (up to 24-bit/192 kHz FLAC) and full ID3 tags. Sidify not only supports batch downloads but also includes built-in format conversion, such as converting FLAC to MP3 and audio editing tools, allowing audiophiles to build their own high-fidelity music library. For music enthusiasts who demand the ultimate in sound quality, Sidify All-In-One is the ultimate FLAC download solution.
Download music from different streaming platforms, including SoundCloud and YouTube. Convert YouTube Video or Music in MP3/AAC/WAV/FLAC/AIFF/ALAC.Losslessly download YouTube music to the computer.Rip music from YouTube and burn music to a CD.Built-in free podcast and radio to mp3 downloader and vocal remover. Step 1 Launch Sidify All-In-One on your computer. On the Music home, choose YouTube and enter the YouTube Converter interface.
Step 2Log in to your YouTube account and click the "+" button to add the video you want from YouTube to Sidify. Sidify will automatically analyze the link.
Step 3Click Settings to enter the YouTube Music settings page. Here, you can select the output format as FLAC and customize the output file name.
Step 4Tap the "Convert" button to start downloading the songs from YouTube losslessly to your local computer.
Step 5 After the conversion is complete, go to the "History" page to view the downloaded FLAC files.
If you only need to occasionally convert YouTube videos to FLAC audio, a free online music converter is a more convenient option. These sites allow you to download YouTube music to FLAC by copying and pasting the link directly, suitable for casual users or temporary downloads. However, it's important to note that online tools are limited in conversion speed, sound quality, and security. Next, we will introduce the 4 most popular free online YouTube to FLAC downloaders, allowing you to easily download lossless audio.
4kdownload.to is a popular online YouTube to FLAC converter that supports converting YouTube videos to various audio formats, including FLAC, MP3, WAV, AAC, OPUS, and more. It offers batch downloading and no installation required. You can quickly download the entire song or playlist by simply pasting the video link.
| 4kdownload.to | |
| Access Link | https://4kdownload.to/en01/youtube-to-flac |
| Sound Quality | 24-bit/96kHz |
| Download Speed | Medium |
| Batch Download | Support batch process |
| ID3 Tags | Title and artist, but no cover art |
| Ads & Popups | Contains redirect ads |
| ✅Pros: | No installation required, supports multiple conversion formats, simple operation steps |
| ❌Cons: | The site contains redirect ads, download speeds are slow, and song metadata is incomplete. |
Step 1 Open https://4kdownload.to/en01/youtube-to-flac in your browser.
Step 2Open YouTube.com and click on the video you like to copy the link.
Step 3Paste your URL into the search box and select FLAC as output format.
Step 4Click the "Download" button and wait for the download to complete.
TubeRipper.cc is a free web tool to download YouTube to FLAC, MP3, WAV, OGG, and other formats. It doesn't require registration and is compatible with both desktop and mobile devices. You can not only download videos by copying and pasting the video URL, but also by typing in keywords. Overall, it's a convenient but basic FLAC downloader.
| Tuberipper.cc | |
| Access Link | https://tuberipper.cc/63/ |
| Sound Quality | 24-bit/48 kHz |
| Download Speed | Slow |
| Batch Download | Single Video Only |
| ID3 Tags | Incomplete |
| Ads & Popups | Contains banners and many redirect ads |
| ✅Pros: | Compatible with all browsers, easy to operate |
| ❌Cons: | The website has a lot of ads and the sound quality is limited. |
Step 1Launch your browser and visit https://tuberipper.cc/63/.
Step 2Find and paste the YouTube URL you want to save.
Step 3Paste the URL in the input field provided, click the ">" button, and the webpage will generate a download link.
Step 4Select the FLAC audio format and click the "extract audio" button to start downloading the audio.
Aquapp is a free online YouTube to FLAC downloader. You can directly paste a video link into their browser to convert it, with no registration or installation required. It supports exporting YouTube audio to FLAC, as well as other formats like MP3 and WAV. The free version has a time limit for each audio clip (usually under 30 minutes) and only supports a low quality of 128 kbps.
| Aquapp.net | |
| Access Link | https://aquapp.net/youtube-to-flac/ |
| Sound Quality | 128kbps |
| Download Speed | Medium |
| Batch Download | Batch downloads require payment |
| ID3 Tags | No cover art |
| Ads & Popups | Clean ad-free page |
| ✅Pros: | The interface is simple and intuitive, suitable for beginners. |
| ❌Cons: | The sound quality is not truly lossless and has a duration limit. |
Step 1Go to https://aquapp.net/youtube-to-flac/ in a web browser.
Step 2Open the YouTube video you want to download and copy the link.
Step 3On Aquapp.net, paste the YouTube URL into the input field and click the search button on the far right.
Step 4The site will generate a download link. Click the "Audio" section and select "Download FLAC" to complete the download.
Evano is a simple online YouTube to FLAC converter. Simply paste a YouTube video link to extract and convert the audio to lossless FLAC format, and can also manually select the compression level (0-8) to balance sound quality and file size. Its interface is simple and suitable for quick conversion.
| Evano | |
| Access Link | https://evano.com/youtube-to-flac |
| Sound Quality | Depends on the original video |
| Download Speed | Slow |
| Batch Download | Single video downloads |
| ID3 Tags | Only includes song and artist. |
| Ads & Popups | The website contains inserted ads |
| ✅Pros: | Supports lossless output and compression level selection. |
| ❌Cons: | Limited sound quality, slow speed, and contains redirect ads. |
Step 1Head to https://evano.com/youtube-to-flac.
Step 2Open the YouTube video you want to download and copy the video link from the browser’s address bar.
Step 3Paste the YouTube link into the input field and click the "Start Download" button.
Step 4Find audio HD FLAC, click the download button, and wait for the download to complete.
Now, let's take a look at the comparison of these five FLAC music downloaders to help you choose the most suitable one.
| Tools | Sound quality support | Batch Download | ID3 tags | Ads-free | Download Speed |
| Sidify All-In-One | 24-bit/192 kHz | ✅ | Complete preservation | ✅ | 10× |
| 4kdownload.to | 24-bit/96kHz | ✅ | Only Title and artist | ❌ | Medium |
| Tuberipper.cc | 24-bit/48 kHz | ❌ | Only Title and artist | ❌ | Slow |
| Aquapp.net | 128kbps | Batch downloads require payment | Only Title and artist | ✅ | Medium |
| Evano | Depends on the original video | ❌ | Only Title and artist | ❌ | Slow |
Overall, Sidify All-In-One Converter is significantly superior to free online tools in terms of sound quality, batch downloading, ID3 tag integrity, and user experience. For users who pursue high-quality, stable downloading and complete metadata, Sidify is the best choice.
Yes. It is legal to convert YouTube videos to FLAC for personal offline use. However, downloading copyrighted content for sharing, selling, or redistribution is prohibited. Always use trusted converters and comply with copyright laws.
No. Videos on YouTube are encoded in the AAC format with a bitrate between 128–256 kbps, which is a lossy compression. Using a FLAC downloader will only preserve the current highest quality, but will not optimize the video's audio quality to true Hi-Res audio.
It depends on the tool. Professional tools like Sidify All-In-One Converter can fully preserve ID3 tags like title, artist, album art, and year, while most free online converters only preserve the song title and artist.
Absolutely! You can convert YouTube videos not only to FLAC but also to MP3, WAV, AAC, and other formats. Sidify All-In-One Converter makes it easy, preserving lossless audio, full ID3 tags, and supporting batch downloads for a smooth music collection experience.
WAV and FLAC are both lossless audio formats, but have obvious differences: WAV is an uncompressed format that retains the highest sound quality, but the file size is large; FLAC performs lossless compression while retaining the original sound quality, and the file size is about 50% smaller than WAV, making it easier to store and manage.
Above are the best 5 YouTube to FLAC converters we want to introduce to you. If you prioritize stability, speed, and lossless audio quality, If you purchase stability and speed, Sidify All-In-One Converter is your best choice. It can convert YouTube to FLAC lossless audio with high speed and preserves complete ID3 tags. Free online tools are handy for quick tasks, but they often compromise on sound quality and can be cluttered with ads. Choose the tool that meets your needs.
Emily Carter | Staff Writer
700,000+ Downloads
