I was born in 1977 in Poznan, Poland. In 1992 I started studying violin-making in Music High School in Poznań under the leadership of my father Antoni Krupa. In 2002 I graduated the violin-making faculty on Music Academy in Poznan. Since 2001 to 2002 I had training bow-making at Gregor Walbrodt’s workshop in Berlin. In 2002 and 2006 I hold a scholarship from the Polish Ministry of Culture. At present I’m also a teacher of violin making at Music Academy in Poznan. Since 1998 I am a member of Polish Union of Artist Violin Makers (ZPAL) and also a member of the Violin Society of America (V.S.A.).
I make new instruments: violins, violas and cellos, also bows for stringed instruments, restoration and valuation.
I took part in many international violin making competitions and I achieved the following prizes:
•    2004 – Polish Violin Making Competition in Poznań – 1st prize in cello category, 2nd prize in viola category, 1st and 2nd prize in bows category,
•    2005 – International Violin and Bow Making Competition in Mittenwald – two bronze medals for violin bow and viola bow,
•    2006 – 11. International Violin Making Competition in Cremona – 3rd prize and bronze medal in violin category, prize for the best tone quality of violin and special prize “S.F. Sacconi” for young maker,
•    2006 – V.S.A. Violin and Bow Making Competition in Baltimore – three certificates of merit for violin bow, viola bow and cello bow,
•    2010 – International Violin and Bow Making Competition in Mittenwald – silver medal for violin bow and bronze medal for cello.
•    2013 – 2. China International Violin and Bow Making Competition in Beijing – Gold medal for bass bow
•    2018 – V.S.A. Violin and Bow Making Competition in Cleveland – certificate of merit for cello bow,
•    2021 – 16. International Violin Making Competition in Cremona – 3rd prize and bronze medal in cello category,
•    2022 – V.S.A. Violin and Bow Making Competition in Anaheim – certificate of merit for cello bow.