Free DJ audio/video toolkit — everything runs on your machine
Convert between MP3, WAV, FLAC, AAC, and OGG. Pick formats and quality — encoding happens in your browser.
Open converter →Visualize frequency content over time. Spot lossy transcodes, frequency cutoffs, and master quality issues.
Open analyzer →Overlay a logo on your video and export MP4 — landscape HD or vertical 9:16 for Reels and Stories. Short clips loop to fill the length you pick.
Open visual generator →