Bitcoin Blockchain Parser to get all block headers I am looking for on-line or off-line run Bitcoin Blockchain Parser to get all block headers only

All I need is

########## Block Header ##########
Version:         1
Previous Hash    00000000000000000000000000000000
Merkle Root    4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
Time             1231006505
Difficulty       1d00ffff
Nonce            2083236893


No transactions data.
I share a small Python script that can parse off-line the data which is stored in blk*.dat files.

You can try it here.

If you want, you can turn-off the strings savings that you does not need.