<div dir="ltr">For a long time the only block explorer for testnet has been the original <a href="http://blockexplorer.com">blockexplorer.com</a>, which is unfortunately often broken / behind / slow and not really maintained any more.<div>
<br></div><div>There is now a new one, here:</div><div><br></div><div><a href="https://www.biteasy.com/testnet/blocks">https://www.biteasy.com/testnet/blocks</a><br></div><div><br></div><div>There's also a REST/JSON API for it.</div>
<div><br></div><div>Please note one curiosity of this block explorer is that the coinbase tx doesn't necessarily come first in the listing (it's sorted by "time received", see).</div><div><br></div><div>
Other interesting thing to note: this site is built using bitcoinj. The author can be contacted on IRC sometimes using the nick damethos.</div></div>