UK Official Download Chart

The UK Singles Downloads Chart is compiled by the Official Charts Company (OCC) on behalf of the music industry. Since July 2015, the chart week runs from Friday to Thursday, with the chart date given as the following Thursday.

The main chart contains the Top 200 downloads (which are published in UKChartsPlus), with the top 100 published on the OCC website. The chart only uses sales of permanent digital downloads, that is single-download tracks on non-subscription online music stores. Some downloading services offer a monthly fee plan where generally an unlimited number of tracks can be downloaded within a month for a certain price. Tracks downloaded in those instances do not qualify.

An album equivalent, the UK Album Downloads Chart, was launched in April 2006.

Before the inauguration of the download chart, only sales of physical formats—such as CD, vinyl and cassette tape—contributed towards a single's position on the UK music charts. From the late 1990s onwards, these sales began to significantly decline. By the start of 2004, they had dropped to their lowest level in over 35 years, with singles needing to sell only 35,000 copies to reach number one. One year later, a limited edition re-release of "One Night" / "I Got Stung" by Elvis Presley topped the chart with 22,000 copies, making it the lowest selling number-one single at that time. Conversely, the music download market was growing considerably: during the same 2004–05 period, sales of downloads grew by 743%, and overtook physical sales in December 2004. The following year, the UK's online music revenue reached €42.1 million.

As a result of this growth, the OCC were commissioned in 2004 to compile a new music chart based solely on the UK's download sales, which was initially sponsored by Coca-Cola. A "sample" download chart was trialled for 10 weeks, with the first number one being "Bam Thwok" by American rock band Pixies. After this ten-week period, the UK Official Download Chart was launched on 1 September 2004, with Irish boy band Westlife achieving the first official number one. The group topped the chart with a live version of their 1999 single "Flying Without Wings", a move that UK chart commentator James Masterton branded a "stunt".

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