Posted May 11, 2020

https://www.freedownloadmanager.org/
Once downloaded, you can then test out the integrity of the downloads using InnoExtract and 7-Zip etc. To simplify that and give a batch option for checking all at once, I have made a frontend program for those third party programs, which works via drag & drop.
See here for my GOGDownload Checker program, which I recently updated to support more file types, beyond GOG ones -
https://www.gog.com/forum/general/we_do_not_want_say_goodbye_to_gog_downloader/post454
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LET GOG KNOW HOW YOU FEEL BY VOTING
https://www.gog.com/wishlist/site/keep_the_gog_downloader_and_keep_it_up_to_date
We are up to 1040 votes now .... still steadily climbing.
Post edited May 11, 2020 by Timboli