Hackman has released a mini-album, That Iron Taste (2013), and four full-length albums: We Slept at Last (2015); I'm Not Your Man (2017); Any Human Friend (2019) and Covers (2020).

She and her older brother, Ben, a dance music producer who releases material under the name "Hackman", were instead encouraged to find other creative outlets.

She received a scholarship to attend Bedales School as a day pupil from ages 11 to 17, where she met and befriended supermodel Cara Delevingne.

Hackman performed at Mulberry's Park Lane launch dinner, celebrating the release of Delevingne's collection in February 2014.

On 17 November 2014, "Drown" was announced as a shortlisted contender for DJ Zane Lowe's "Hottest Record of 2014" on BBC Radio 1.

Fenne Lily provided support to Hackman during these dates, which were generally well received by the press[19] The tour continued with shows throughout Europe during the spring and summer of 2015.

[20][21] On 25 June 2015, Laura Marling announced that Hackman and Johnny Flynn would join her on tour for a series of concerts in North America during July and August 2015.

[22] The album was generally well-received,[23][24] with The Guardian's review rating it four out of five stars, and calling Hackman's work "superbly understated and atmospheric", noting that the "unsettling quality" was a distinguishing factor.

The Guardian's four-star (out of five) review praised Hackman's "sweetly sung cut-glass vocals" and for having "risen from the alt-folk scene".

[30] Pitchfork declared the album "bracing" and "darkly funny", "melodically strong" and "full of surprises", giving a rating of 7.5/10.

[36] The Guardian, in a four-star review, observed that, on Hackman's "most accomplished record to date", she "flits between self-reflection and self-loathing" in "glorious songs" characterised by "a general wry frankness".

[37] Pitchfork called the album "a singular, extraordinarily horny, and occasionally bleak pop record", about "those quiet moments of reckoning with what it means to be alive, young, and cautiously enamoured of it all", also observing Hackman, with her "coolly unimpressed alto" as "not interested in being coy or mincing words".

[38] The Independent's review calls the album "blunt and bold" with a "dark sexual energy" on which "Hackman’s beatific voice sits atop methodically messy instrumentals".

[40] This album of covers was produced during Hackman's time in lockdown during the COVID-19 pandemic, including songs from Beyoncé, The Shins, and Elliott Smith.

Released on 13 November 2020, the album was noted by NME in its four-star review to be "intimate and inventive", representing "soothing familiarity with the excitement of the new".

[42] On 19 July 2023, Hackman was featured on the single "Call Me A Lioness", released in celebration of the 2023 FIFA Women's World Cup.