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We present a catalog of compact double radio galaxies (hereafter COMP2$CAT$)listing 43 edge-brightened radio sources whose projected linear size does notexceed 60 kpc, the typical size of their host galaxies. This is the fifth in aseries of radio source catalogs recently created, namely: FRI$CAT$, FRII$CAT$,FR0$CAT$ and WAT$CAT$, each focused on a different class of radio galaxies. Themain aim of our analysis is to attain a better understanding of sources withintermediate morphologies between FR\,IIs and FR\,0s. COMP2$CAT$ sources wereselected from an existing catalog of radio sources based on NVSS, FIRST andSDSS observations for having, mainly, i) edge-brightened morphologies, typicalof FR\,IIs, ii) redshifts $z < 0.15$ and iii) projected linear sizes smallerthan 60 kpc. With radio luminosities at 1.4 GHz $10^{38} \lesssim L_{1.4}\lesssim 10^{41}$ erg s$^{-1}$, COMP2$CAT$ sources appear as the low radioluminosity tail of FR\,IIs. However, their host galaxies are indistinguishablefrom those of large-scale radio sources: they are luminous ($-21 \gtrsim M_{r}\gtrsim -24$), red, early-type galaxies with black hole masses in the range of$10^{7.5} \lesssim M_{\rm BH} \lesssim 10^{9.5}\, \rm{M}_\odot$. Moreover, allbut one of the COMP2$CAT$ sources are optically classifiable as low excitationradio galaxies, in agreement with being the low radio-power tail of FR\,Is andFR\,IIs. This catalog of compact double sources, which is $\sim 47 \%$ completeat $z<0.15$, can potentially be used to clarify the role of compact doublesources in the general evolutionary scheme of radio galaxies.

COMP2CAT: hunting compact double radio sources in the local Universe