Johan Larsson Bass (1993-1994)
See also: Carrion Carnage, ex-Purgamentum, ex-In Flames, ex-Carnal Grief, ex-Powerpig
Jesper Strömblad Drums (1993-1997)
See also: Ceremonial Oath, CyHra, Dimension Zero, ex-Desecrator, ex-In Flames, ex-Nightrage (live), ex-Sinergy, ex-The Resistance, ex-All Ends
Niklas Sundin Guitars (1993-1995)
See also: Dark Tranquillity, Laethora, ex-Septic Broiler, ex-Dead Man's Banquet
Mikael Stanne Vocals (1993-1996)
See also: Dark Tranquillity, ex-Septic Broiler
Glenn Ljungström Guitars (1995-1997)
See also: ex-Dimension Zero, ex-In Flames, ex-The Resistance
Magnus Rosén Bass (1997-2007)
See also: Bleckhorn, Shadowside, Planet Alliance, ex-Keegan, ex-Revolution Renaissance, ex-X-World/5, Magnus Rosén, ex-Avalanch, ex-Fullforce, ex-Jorn, ex-Tony Martin, ex-Geisha, ex-Von Rosen
Patrik Räfling Drums (1997-1999)
See also: ex-Full Strike, ex-Heed, ex-Mega Slaughter, ex-Aeon, ex-Jaggernaut, ex-Highlander
Stefan Elmgren Guitars (1997-2008)
See also: Fullforce, ex-Full Strike, ex-Cans, ex-Highlander
Anders Johansson Drums (1999-2014)
See also: Bakteria, Fullforce, Manowar, Strokkur, Hulkoff (live), Planet Alliance, ex-Johansson, ex-Silver Mountain, ex-Stratovarius, ex-Tears of Anger, ex-Yngwie J. Malmsteen, ex-Keegan, ex-Blue Murder, ex-Jens Johansson
Johan Kullberg Drums (2016-2017)
See also: Dark Illusion, The Experiment No.Q, ex-Scudiero, Zan Clan, ex-Animal, ex-Lion's Share, ex-Section A, ex-Therion, ex-Chris Laney

After quitting Ceremonial Oath, Oscar Dronjak, and Jesper Strömblad formed HammerFall with Niklas Sundin and Mikael Stanne, both of whom are members of Dark Tranquillity. However, because they were all involved in other bands HammerFall was relegated as a side-project for several years; their shows were mostly limited to a reoccurring local music contest, Rockslaget.

In 1996, HammerFall reached the semi-finals of Rockslaget. Since vocalist Mikael Stanne was not going to be able to perform with the band on the semi-finals, through mutual friends, they got in contact with Joacim Cans, who agreed to play with them for the night. The concert was a success, despite the fact that the judges didn't qualify HammerFall for the finals. By the end of that day, Joacim had already been made an official member of the band.

In early 1997, German label Nuclear Blast approached HammerFall with a contract for a European release deal, which included four albums. Towards the end of 1997, "Glory to the Brave" was released in Japan and the United States. Sales of the album reached one hundred thousand copies. HammerFall were also nominated for the Swedish Grammy award in the Best Hard Rock act category.

Their first world tour took place in October 1998, after the release of "Legacy of Kings". During the shows in Sweden, Joacim Cans caught a serious throat infection which made it impossible for him to sing. Shortly afterwards, Magnus Rosén was afflicted with the same disease, and after him the whole of HammerFall's support crew became sick. The members of the band played for as long as possible and then were forced to postpone or cancel a few dates. By the end of that tour, drummer Patrik Räfling left the band, and Anders Johansson joined the band.

Following the release of "Renegade", the reviews were mostly positive, even though there was a consensus that the band's sound was remarkably different. A music video was made for the title track, and reached the top of the Swedish parade; the same soon happened with the album itself, which reached gold status with over forty thousand copies sold.

After releasing "Crimson Thunder", HammerFall's tour was brought to a sudden end when Oscar Dronjak suffered a motorcycle accident, breaking his left arm and sustaining several minor injuries. They were then left with no choice but to take a break.

Their 6th album, titled "Threshold", was released on October 20, 2006 and it went directly to a number 1 position on the Swedish charts.

On March 6, 2007, a statement was posted online at HammerFall's official website (and his own official website), that bassist Magnus Rosén would not be involved with the band anymore, stating that he was unhappy in the band and wanted to focus on other projects. He has since released a few solo albums that are comprised mostly of bass playing and also joined Tony Martin's band.

Compilation appearances:
"Head over Heels" (featuring Udo Dirkschneider) on a 1999 Accept tribute CD.
- "We're Gonna Make It" on Twisted Forever: A Tribute to the Legendary Twisted Sister (Koch Records, 2001).