The much-hyped Click Frenzy online sale event has crashed.
Touted as "the sale that stopped the internet", Click Frenzy opened for business at 7pm (AEDT) on Tuesday, but its website crashed minutes after the sale began.
The 24-hour promotion, which mimics America's Cyber Monday sales, promised heavily discounted one-off deals for online shoppers, with Myer and Dick Smith among dozens of big-name retailers on board.
The websites of some participating retailers also crashed shortly after the sale began.
Priceline's website became unavailable before kick-off, with Myer following suit 10 minutes after it opened.
Twitter went into meltdown as unhappy punters vented their frustration on social media.
"Still can't get on to #clickfrenzy. Lucky it's a 24 hr event," tweeted Vivienne McDonald.
Kelli Lucas wrote: "Can't believe I have sat here for almost an hour trying to get onto #clickfrenzy website, no luck!"
Department store David Jones and tech giants Apple and Dell were among those who didn't join the promotion, launching their own rival sales on Tuesday.
David Jones began an online and in-store promotion at 9am, while Apple unveiled plans for a one-day sale on Friday.
Dell launched its Super Cyber Sale, which runs until Thursday.