

Each specific audio segment is licensed clearly alongside, typically as Attribution 3.0. Audios are recorded and uploaded by thousands worldwide. If you can't find your desired audio on SoundBible, you can submit a request for community authorship inclusion.
Though Soundbible's interface lacks modernity, it's an excellent resource for your projects.
2. Freesound
Freesound differs from Soundbible in one aspect: you need an account to download audio clips. This website offers a rich array of sounds and is effortless to navigate for your needs.

Freesound hosts a forum for community discussions on related topics. Additionally, it features sound ratings (from 1 to 5 stars) for quick selection of suitable results.
The sound pack feature is also incredibly useful, offering themed or purpose-driven collections. For instance, this Revine Walk pack provides various footstep sounds.
3. ZapSplat
ZapSplat not only boasts the coolest name on the list but also provides a massive sound library, with up to 91,000 sounds. You can download audio clips for free in MP3 format, with new Gold members being able to download WAV files.

Additionally, there are some other limitations for free users. By subscribing to a paid plan, you can download audio files faster and gain access to higher-quality audio files.
ZapSplat regularly produces new sounds, so their sound repository is always rich and worth using in the long run.
4. freeSFX
As one of the oldest websites, freeSFX will help you quickly find sound effects. You'll need to register an account before downloading.

At freeSFX's homepage, you'll find sound categories neatly divided such as Animals, Bells, Cartoons, etc. The collection of 6,000 sounds is relatively small, but diverse and of high quality, so you can use it with confidence.
5. SoundEffects +
SoundEffects + has a library of just under 5000 sounds, but sometimes quality matters more than quantity. All sounds on this website are recorded by experts.

Although the sound clips are free to use in projects, there are still certain copyright restrictions. They have terms stating that you cannot use sound effects in songs meant for sale, or repost sounds on any other website, etc.
Aside from these minor points, you'll certainly be pleased with the quality that SoundEffect + provides.
Conclusion
With the websites mentioned above, you'll find the necessary sounds for videos, podcasts, or electronic games. All of them are free!