| Boil the Frog | pick two artists, makes a playlist through the genres |
| Music-Map | find similar music to an artist |
| Gnoosic | music recommendations based on artists you like |
| Forgotify | find obscure, underrated music that has been "forgotten" on Spotify |
| Tunefind | music from TV shows & movies |
| Every Noise at Once | many genres to search from |
| Musgle | Google (dorking) for music |
| Dubolt | Discover new music on spotify |
| Predominant.ly | find albums via cover color |
| ccMixter | remixes and samples and music forums |
| Girl and queer bands | |
| Mydora | lost MySpace archive of music |
| Radiooooo | worldwide radio |
| WFMU | online radio |
| Video Game Music | game bg music for download |
| Radio Garden | worldwide radio |
| DKFM | online radio |
| Judge My Music | judge your Spotify/Apple Music listening habits |
| Obscurify | statistics about your listening habits |
| Icebergify | your artists on an iceberg graph |
| Receiptify | your listening habits on a receipt |
| What The Fuck Should I Listen To Right Now? | input artist, get recommendation (and a feeling lucky button!) |
| Audionautix | |
| Youtube Audio Library | |
| Free Music Archive | |
| Icompetech | |
| Musopen | also has sheet music |
| Freesound | not music, but sounds for audio design |
| Bandlab | |
| JummBox | in browser |
| Audiotool | |
| Online Sequencer | in browser |
| Online Tone Generator | generate one note |
| Learning Synths | fun in browser learning, or you can skip straight to the playground |
| Learning Music | same as above but for music in general. playground |
| BeepBox | in browser |
| sonic garbage | in browser |
| CardboardBox | in browser |
| Tinkersynth | in browser |