Currently, over 16,000 sound effects from the BBC Sound Library are available for free download for non-commercial purposes only.
Free sound effects
The BBC music effects archives are well known between sound designers and sound engineers. This sound effect collection includes historical and recent ones, covering almost all of the sound effects to suit the needs of film and television production.
The BBC has now made a portion of its sound effects archive available for free download under the Research and Education Space (RES) platform. It is available as a high-resolution WAV format (44.1KHz, 16-bit CD standard) and contains 16,000 sound effects. These can only be used for personal, educational, or research purposes. Click here for details on the RemArc license. https://bbcarchdev.github.io/res/ With the following terms and conditions
In addition to practical sound effects such as “applause”, “bell” and “car”, there are also some fascinating sound effects such as “liquid” and blue bottle insects swirling at you can check the sound library here. http://bbcsfx.acropolis.org.uk/
For commercial use, you can also get a license. Since 2009, the entire BBC Sound Library has been available under a Commercial Sound License (PSE). Click here for more information on commercial licenses. https://blog.prosoundeffects.com/how-to-license-bbc-sound-effects-to-use-in-your-commercial-productions
If you are looking for the sounds which you want to use for the commercial purpose you can check sounds at Shutterstock, Audio Jungle, etc. click here to access the sound library