Remove ID3 Tags & Recording Data from Audio.

ID3v1 and ID3v2 are the metadata standards used in MP3 files to store artist, album, track number, year, and genre. Vorbis Comments are used in OGG, FLAC, and Opus files. M4A/AAC files use iTunes-style QuickTime metadata atoms (like ©ART, ©alb). Our tool strips all three formats using FFmpeg with zero re-encoding.

Yes. Embedded album art (typically a JPEG or PNG stored as an APIC frame in ID3v2, or as a METADATA_BLOCK_PICTURE in FLAC) is part of the metadata container. The -map_metadata -1 flag strips these attached pictures along with all other metadata. The audio stream itself is untouched.

Yes. WAV files contain a RIFF INFO chunk that can store: INAM (title), IART (artist), ICMT (comments), ISFT (software/firmware), and IPRD (product). Professional and phone voice recorders embed their model name and firmware version in ISFT. Our tool strips these chunks during the lossless stream copy.

No. FFmpeg WASM performs a lossless stream copy (-c copy) that transfers the compressed audio bitstream byte-for-byte into a new container without the metadata frames. The audio codec data (MP3/AAC/FLAC/etc.) is never re-encoded. Bit rate, sample rate, and channel layout remain identical.

MP3 files encoded with LAME contain a LAME header with the encoder version, encoding mode (CBR/VBR/ABR), quality preset, and replay gain. FLAC files store the encoder version in the VENDOR Vorbis Comment. M4A files contain an 'Encoding Params' atom. These identifiers can correlate files to a specific software version or workflow.