Fix My Nintendo Mii Studio to be an actually usable Mii Editor.
Users
17
+5 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#156K
#138K among extensions
Version
1.0.0
updated 22 Sep 2026
Users
monthly, 2 months
Latest, 12 Nov 2026:17 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 12 Nov 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About MiiStudioFixer
MiiStudioFixer is based off of HEYimHeroic's Mii Studio Mii Loader (https://github.com/HEYimHeroic/MiiStudioMiiLoader), and is intended to be used alongside, not necessarily to replace, however some of the things I wanted to add were more invasive to the basic UI and more outside the scope of what MSML is intended to be, and so this extension was also created, using MSML as a base.
Correct MNMS' Abysmal Excuses for Renders
The main inciting thing was that it fixed Mii Studio's absolutely awful fake hacked together "renders" with the official render endpoint used when you actually save the Mii. This can be done either by a floating preview window that can be resized and dragged around freely, or by actually replacing the hacked together fake "render" with the real render entirely.
Increase the Storage Limit - Kinda
Due to the fact the saved Miis are stored on Nintendo's servers and not locally to your device, I chose not to take the path of trying to bypass that as I've seen around. What this approach does is when you select a Mii, another option is added to the menu, being Store. After inputting a name so you can distinguish the Mii from any others you've saved, this will delete the Mii from your 6 Mii limit, freeing up a slot. It then also stores the data locally in the extension's memory instead. When you select to create a Mii, a modal has been added. This modal includes a new button to "Restore", which will show you a list of your stored Miis, and allow you to Restore any of them directly.
While We're Messing With the UI
Import and Export buttons were also added to the edited modals simply because it didn't make sense not to have them there. They are not as featured as MSML's and not intended to compete with MSML, it just didn't make sense not to have the buttons there in the first place, especially if we were already messing with those modals and already importing from a stored file anyway.