It can be hard to quickly determine the tab number you want when jumping to a specific tab by giving a count to the gt command. This makes it easier by displaying the tab page number at the beginning of the tab page text. Note, only works in gui Vim. Need to tweak to use tablabel option for terminal Vim. Can probably lose the tooltip portion.
Drop the following in your vimrc:
set showtabline=2 " always show tabs in gvim, but not vim " set up tab labels with tab number, buffer name, number of windows function! GuiTabLabel() let label = '' let bufnrlist = tabpagebuflist(v:lnum) " Add '+' if one of the buffers in the tab page is modified for bufnr in bufnrlist if getbufvar(bufnr, "&modified") let label = '+' break endif endfor " Append the tab number let label .= tabpagenr().': ' " Append the buffer name let name = bufname(bufnrlist[tabpagewinnr(v:lnum) - 1]) if name == '' " give a name to no-name documents if &buftype=='quickfix' let name = '[Quickfix List]' else let name = '[No Name]' endif else " get only the file name let name = fnamemodify(name,":t") endif let label .= name " Append the number of windows in the tab page let wincount = tabpagewinnr(v:lnum, '$') return label . ' [' . wincount . ']' endfunction " set up tab tooltips with every buffer name function! GuiTabToolTip() let tip = '' let bufnrlist = tabpagebuflist(v:lnum) for bufnr in bufnrlist " separate buffer entries if tip!='' let tip .= ' | ' endif " Add name of buffer let name=bufname(bufnr) if name == '' " give a name to no name documents if getbufvar(bufnr,'&buftype')=='quickfix' let name = '[Quickfix List]' else let name = '[No Name]' endif endif let tip.=name " add modified/modifiable flags if getbufvar(bufnr, "&modified") let tip .= ' [+]' endif if getbufvar(bufnr, "&modifiable")==0 let tip .= ' [-]' endif endfor return tip endfunction set guitablabel=%{GuiTabLabel()} set guitabtooltip=%{GuiTabToolTip()}