Welp... nominally, Maven Central's search supports this, via fc: or fullclassname: prefix, e.g. you'd go to https://central.sonatype.com and type fc:com.mysql.cj.jdbc.Driver. But it works like dogsh¡t. You'll get 300 pages of results, sorted by criteria far beyond mortal ken. A site called findjar.com used to exist, that did a somewhat better job, but is now defunct. I'm pretty sure IntelliJ can perform this sort of search more or less successfully if you let it index your repositories (which takes a geologic era). All in all... it's bleak.