Online retro game save converter
Most save files found around the Internet for retro consoles are in legacy formats that aren’t compatible with modern emulators, flash carts, or devices/homebrew software that can write the saves to real hardware.
Site : https://savefileconverter.com/
This site can convert all the common formats for NES/SNES/GBA/N64/TG16/SMS/Genesis/Neo Geo/PS1 games, and it got people on Reddit pretty excited recently: https://www.reddit.com/r/emulation/comments/qzvkt2/i_made_an_online_tool_that_converts_save_files_to/
Now you can unlock all of the cheats in GoldenEye 64, unlock all of the hidden levels in Yoshi’s Island for SNES, or unlock the 4 swords palace in Link to the Past on GBA.
A list of places to download saves can be found at: https://savefileconverter.com/#/download-saves
Everything is free, there’s no advertising, and it’s all open source: https://github.com/euan-forrester/save-file-converter