Best YouTube to FLAC Converters in 2025: Safe & Fast

We’ve all been there: you find an incredible live performance or a rare music track on YouTube, and you want to keep it forever.

If you are an audiophile or just someone who cares about crisp, clear sound, you know that format matters. So you might look to convert YouTube to FLAC (Free Lossless Audio Codec) to get that studio-quality experience without the nasty compression artifacts.

So How to convert it to FLAC?

YouTube doesn’t provide lossless audio (it’s typically AAC/Opus), so converting to FLAC won’t “upgrade” quality. But FLAC is still useful for archiving because it avoids extra quality loss from re-encoding (for example, MP3 → FLAC).

For the best YouTube to FLAC result, download the video's best available audio stream and convert it once to FLAC.

Fastest reliable methods:

• For Windows/macOS:

1. Install MusicFab Audio Converter
2. Paste the YouTube URL into the built-in browser
3. Click the Download button and choose the FLAC format

• For Windows/macOS/Linux:

1. Install `yt-dlp` and `ffmpeg`
2. Run: `yt-dlp -f ba -x --audio-format flac --embed-metadata --embed-thumbnail `
3. You’ll get a local `.flac` file made from the best available YouTube audio stream.

Can You Convert YouTube to FLAC Free Online?

Yes, but most free online YouTube to FLAC converters are unreliable, based on tests of top-ranking sites in 2025. They often failed, lacked a real FLAC option, or returned unplayable/fake "FLAC" files in MP3s.

We picked and tested 5 free online YouTube to FLAC downloaders and advanced desktop software. We will provide our real-world test results and walk you through the best methods. Stay tuned for more info!

Method 1: Best YouTube to FLAC Converter for Audiophiles—MusicFab

Look, online tools are great if you just need to convert one video sound clip. But let's be honest: if you are trying to convert YouTube playlist to FLAC, relying on a web-based converter is a nightmare. You have to copy-paste links one by one, dodge a dozen pop-up ads, and pray the server doesn't crash halfway through.

If you value your time and your computer's safety, you need a dedicated tool. This is where MusicFab Audio Converter comes in. It’s designed for power users who care about speed, quality, tags, and long-term library management.

Why do we pick MusicFab?

• Batch Downloading:  You can convert and download an entire playlist.
• Zero Quality Loss: MusicFab extracts the audio stream directly to ensure zero quality loss during the transfer.
• Multiple Output Formats: Convert YouTube videos to FLAC, MP3, M4A, WAV, and Opus.
• Metadata Saver: MusicFab automatically keeps the Artist Name, Song Title, Album Art, and even Lyrics.
• Turbo Speed: It uses hardware acceleration, so you aren't waiting around for a simple 3-minute track.

How to Download YouTube to FLAC with MusicFab (Step-by-Step)

• Step 1: Download and install MusicFab. Don't worry, it’s clean software with no hidden toolbars or malware.
• Step 2: Launch MusicFab and click on YouTube in the Supported Websites, or directly paste the YouTube URL of the video or playlist in its built-in browser. You can browse YouTube directly inside the software (just like using Chrome).

• Step 3: As soon as the video starts, a download icon in the bottom-right corner will turn green, then click it. A window will pop up automatically. Under the "Format" dropdown, select FLAC.

• Step 4: Click the "Download Now" button. If you are downloading a playlist, you can select specific songs or just hit "Select All" to grab everything at once. The files will be saved to your local drive

Pro Tip: If you use other streaming services too, MusicFab isn't just a YouTube to FLAC downloader. It supports major platforms like Spotify, Amazon Music, YouTube Music, etc. MusicFab offers various products to meet your needs; their features are almost the same, but they support different services.

Method 2: 5 Online YouTube to FLAC Converters (Tested)

Maybe you are on a work computer, or you just need to convert a single video clip quickly and don't want to install software. We get it. 

Here are some of the tools that show up again and again in 2025 and the results we’ve tested:

1. Motionbox.io

• Website: https://motionbox.io/tools/youtube-to-flac
• Tested results: Error

Motionbox supports you in converting YouTube to multiple formats, such as FLAC, MP3, MP4, etc. It has a clean interface and a straightforward process. You just need to paste the YouTube URL to start the conversion. However, when we paste a video URL, and the network is working properly, it still displays an error shown below.

2. y2wav

• Website: https://y2wav.com/
• Tested results: FLAC files, but with no data

y2wav is a free YouTube to FLAC, WAV, and M4A converter. It is ad-free and easy to use. But it doesn't offer quality options. 

Our experience: After clicking “Convert,” it successfully parsed the video. However, the final downloaded file showed no data and was unplayable. Additionally, the audio file's name was covered in watermarks.

3. Tuberipper

• Website: https://tuberipper.cc/64/save/flac
• Tested results: no FLAC option; does not match its page description.

Tuberipper is marketed as a fast, free, browser-based FLAC converter. But it only allows you to convert YouTube to MP3 or MP4. As a YouTube converter, it is adequate because it supports the most common formats and allows quality selection. However, its claim to support FLAC is inaccurate.

4. Evano

• Website: https://evano.com/youtube-to-flac
• Tested results: Failed

Evano is a more technical-feeling online converter that lets you turn YouTube videos into FLAC. It also supports other audio and video formats, such as YouTube to M4A or MP4. In our test, after pasting the link and starting the download, it redirected to another webpage and displayed an error message.

5. Aquapp

• Website: https://aquapp.net/youtube-to-flac/
• Tested results: Failed

Aquapp offers a simple search/paste, pick format, and download workflow and focuses on a mostly ad-free page. It supports not just YouTube to FLAC, but also MP3 and MP4.

Our experience: It runs on various third-party servers; however, none of the servers returned results in FLAC format.

Final Verdict

If you just need a quick sound bite for a meme or a one-time project, an online YouTube to FLAC converter will do the trick.

But if you are building a music library, archiving rare tracks, or simply respect sound quality, don’t settle for less. You need a tool that handles bulk downloads, preserves metadata, and guarantees safety. Download MusicFab today and start building your offline collection the professional way.