
Casper's Sidekick
Small, free tools made by Casper, a front-end developer in Taiwan.
See the toolsTools
Every tool on this site is listed here. Tools without an English version are marked with the language they open in.
Sound EffectsFree Sound EffectsPlay and download sound effects in MP3 with no sign-up: animals, alarms, nature, game sounds and more, all free to use.
- Play any sound right in your browser
- Download MP3 files with no sign-up
- Animals, alarms, nature, games and more
- Search by name or browse by category



Front-end notes
Since 2013, Casper has written front-end notes in Traditional Chinese, covering HTML, CSS, JavaScript and Vue.
Latest articles (in Traditional Chinese)All categories (in Traditional Chinese)
About Casper
A front-end developer and teacher in Taiwan who builds the tools on this site and keeps them up to date.
More about Casper (in Traditional Chinese)