Apex Flow – Class diagrams + call-flow charts for Apex/LWC/Java: https://apexflow.trendx.uk SF Debug Viewer – Debug log analyzer, collapsible call tree, SOQL/DML breakdown, exceptions, timings: https://apexdebug.trendx.uk JSON Grid – view/format/diff JSON, and it parses Apex debug output into JSON too: https://jsongrid.trendx.uk