Foobar2000 is a multi-function and advanced freeware audio player for the Windows platform. With the help of extra component, it can make FLAC audio merging come true.
Step 1. Download and install Foobar2000 and required component through https://www.foobar2000.org/, http://www.foobar2000.org/encoderpack
Step 2. Launch Foobar2000 and add FLAC files by clicking “Add files” under the “File” segment or directly drag them into the main window. You can choose a single file to drag up and down to adjust the order for merging.
Step 3. Select all the files via pressing keyboard shortcut Ctrl + A, then right click and head to “Convert” >> press “…” icon.
Step 4. Get into the Converter Setup window, ①: In “Output format” section, choose FLAC option. Also, you can select other formats as will, for example: you can choose FLAC to ALAC, FLAC to MP3…②: Press “Destination” to specify the output folder and click “Merge all tracks into one output file”, then hit “Back” button, at last click “Convert” to begin the joining process.