Runtime comparison of AbsIDconvert with other conversion tools. (a) Tools give comparative run times with a small input (i.e. ≤5,000). (b) The number of inputs was gradually increased to 100,000 and run times for each tool were determined. Most of the tools were not able to produce the result for large inputs. Only MADGene and AbsIDconvert could produce results. Note that DAVID limits user input to 30,000 identifiers.