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We present a comprehensive search and analysis of high-redshift galaxies in asuite of nine public JWST extragalactic fields taken in Cycle 1, covering atotal effective search area of $\sim358{\rm arcmin^2}$. Through conservative($8\sigma$) photometric selection, we identify 341 galaxies at $5<z<14$, with109 having spectroscopic redshift measurements from the literature, includingrecent JWST NIRSpec observations. Our regression analysis reveals that therest-frame UV size-stellar mass relation follows $R_{\rm eff}\proptoM_*^{0.19\pm0.03}$, similar to that of star-forming galaxies at $z\sim3$, butscaled down in size by $\sim0.7$dex. We find a much slower rate for the averagesize evolution over the redshift range, $R_{\rm eff}\propto(1+z)^{-0.4\pm0.2}$,than that derived in the literature. A fraction ($\sim13\,\%$) of our sampleare marginally resolved even in the NIRCam imaging ($<100$pc), located at$>1.5\,\sigma$ below the derived size-mass slope. These compact sources exhibita high star formation surface density $\Sigma_{\rm SFR}>10\,M_\odot\,{\rmyr^{-1}\,kpc^{-2}}$, a range in which only $<0.01\,\%$ of the localstar-forming galaxy sample is found. For those with available NIRSpec data, noevidence of ongoing supermassive black hole accretion is observed. A potentialexplanation for the observed high [OIII]-to-Hbeta ratios could be high shockvelocities, likely originating within intense star-forming regionscharacterized by high $\Sigma_{\rm SFR}$. Lastly, we find that the rest-frameUV and optical sizes of our sample are comparable. Our results are consistentwith these early galaxies building up their structures inside-out and yet toexhibit the strong color gradient seen at lower redshift.

Enhanced Sub-kpc Scale Star-formation: Results From A JWST Size Analysis of 341 Galaxies At 5