Pino To prettify logs, simply pipe a log file through pino: cat log | pino To highlight a string at a key other than 'msg', use -m : cat log | pino -m fooMessage To convert Epoch timestamps to ISO timestamps use the -t flag cat log | pino -t To flip level and time/date in standard output use the -l flag cat log | pino -l Flags -h | --help Display Help -v | --version Display Version -m Highlight the message at the property -t Convert Epoch timestamps to ISO -l Flip level and date