Where to get good sound effects and music for my game?

Hello ! Do you have any idea where can I find non copyrighted sound effects and music for my game ? Thanks : )

Make them! Get a recording/editing program like Audacity (which is free) and a mic. For my game, I've done nearly all the sounds effects, minus a couple I found that are public domain. As for music, that's a little more complicated. I found a couple sites just googling for royalty free music. I also paid a musician I found on Youtube ~$50 for a 60 loopable theme song for my game. 

Click on the resources tab above  and go to the link library. That should more than get you started for any asset requirements :)

Check out procedural music - such as https://pernyblom.github.io/abundant-music/index.html

You can get royalty free music from: 

• Inompetech:  http://incompetech.com/

You can get some sound effects from:

• Universal Sound FX:  https://imphenzia.itch.io/universal-sound-fx ($39.95)
• GameBurp:    http://www.gameburp.com/ ($39.00)

Unfortunately, the sound effects are not free, but they are definitely worth the price!  You get several sounds and I use them for all of my games. 

you can convert youtube to mp3. anything shorter than 3 seconds can not be protected

or freesound.org I used a lot.

hey! I usually use www.pond5.com 

but the website seem to be very buggy last time I used it

Inompetech (Posted above) is my go to place for music.

you can always try searching for free royalty free tracks and loops :)