Mii Studio Mii Loader

Load and export Mii Studio codes on the Mii Studio website: https://my.nintendo.com/mii

As of June 2026, Mii Studio Mii Loader has 1,000 users and a 3.08/5 rating from 13 reviews in the fun category.

Usersno change0%
1.0K
1,000
Ratingup 5.5 percent+5.5%
3.08
13 reviews
Reviewsup 8.3 percent+8.3%
13
Version
1.1.0
Manifest V3
90-day change · In the last 90 days this extension 1 version update, changed permissions.

History

2 snapshots

Tracking since May 3, 2026.

1.0K1.0K988.4May 3, 2026Jun 8, 2026
View as table
DateUsersRatingReviewsVersion
May 3, 20261.0K2.92121.0.3
Jun 2, 20261.0K2.92121.0.3
Now1.0K3.08131.1.0

Changelog

  • Jun 2, 2026
    description
    Load and save Mii Studio codes using this extension on the Mii Studio website: https://my.nintendo.com/mii (MUST be signed into My Nintendo account to access the Mii Studio)
    
    Mii Studio codes are an easy way to save and share Miis on the Mii Studio. They're 92 characters long. Here's an example to get you started:
    0801400308030224030b0308050306020c0100020205000804000a08003140040002140313030c0d050209040607
    
    Note: If you load a Mii and think it looks odd, this is simply an issue with Mii Studio. When editing a Mii, it may not look exact, but after you save the Mii, it will look perfect. This is an annoying issue with the Mii Studio editor itself that's been around for a long time, and has simply never been fixed, unfortunately.
    
    TO USE:
    When editing a Mii on the Mii Studio site (MUST be editing a Mii, not creating a new one), click the extension and a small dropdown will appear. You can either paste in a Mii Studio code, then click "Update Mii Studio Data", or you can copy the current Mii's Mii Studio code. You must have made at least 1 edit to the Mii for the Mii Studio code to be there (you can change it right back, though).
    
    - This extension is not affiliated or endorsed by Nintendo. The extension is just meant to harmlessly save and load Mii characters on an official Nintendo website.
    Load and save Mii Studio codes using this extension on the Mii Studio website: https://my.nintendo.com/mii (MUST be signed into My Nintendo account to access the Mii Studio)
    
    Mii Studio codes are an easy way to save and share Miis on the Mii Studio. They're 92 characters long. Here's an example to get you started:
    0801400308030224030b0308050306020c0100020205000804000a08003140040002140313030c0d050209040607
    
    NEW: You can now also import and export Mii data files! Import a Mii from nearly any Mii data format, including QR codes, Switch formats, and more! Then, export your Miis all the same. Managing your Mii Studio Miis has never been easier!
    
    Note: If you load a Mii and think it looks odd, this is simply an issue with Mii Studio. When editing a Mii, it may not look exact, but after you save the Mii, it will look perfect. This is an annoying issue with the Mii Studio editor itself that's been around for a long time, and has simply never been fixed, unfortunately.
    
    TO USE:
    When editing a Mii on the Mii Studio site (must be editing a Mii, NOT creating a new one), click the extension and a small dropdown will appear. You can either paste in a Mii Studio code, then click "Update Mii Studio Data", or you can copy the current Mii's Mii Studio code. You must have made at least 1 edit to the Mii for the Mii Studio code to be there (you can change it right back, though).
    
    - This extension is not affiliated or endorsed by Nintendo. The extension is just meant to harmlessly save and load Mii characters on an official Nintendo website.
  • Jun 2, 2026
    permissions
    activeTab, scripting
    storage, activeTab, scripting, clipboardWrite

Permissions & access

Permissions
storageactiveTabscriptingclipboardWrite
Host access
None declared

Screenshots

Mii Studio Mii Loader screenshot 1

About

Load and save Mii Studio codes using this extension on the Mii Studio website: https://my.nintendo.com/mii (MUST be signed into My Nintendo account to access the Mii Studio)

Mii Studio codes are an easy way to save and share Miis on the Mii Studio. They're 92 characters long. Here's an example to get you started:
0801400308030224030b0308050306020c0100020205000804000a08003140040002140313030c0d050209040607

NEW: You can now also import and export Mii data files! Import a Mii from nearly any Mii data format, including QR codes, Switch formats, and more! Then, export your Miis all the same. Managing your Mii Studio Miis has never been easier!

Note: If you load a Mii and think it looks odd, this is simply an issue with Mii Studio. When editing a Mii, it may not look exact, but after you save the Mii, it will look perfect. This is an annoying issue with the Mii Studio editor itself that's been around for a long time, and has simply never been fixed, unfortunately.

TO USE:
When editing a Mii on the Mii Studio site (must be editing a Mii, NOT creating a new one), click the extension and a small dropdown will appear. You can either paste in a Mii Studio code, then click "Update Mii Studio Data", or you can copy the current Mii's Mii Studio code. You must have made at least 1 edit to the Mii for the Mii Studio code to be there (you can change it right back, though).

- This extension is not affiliated or endorsed by Nintendo. The extension is just meant to harmlessly save and load Mii characters on an official Nintendo website.

Technical

Version
1.1.0
Manifest
V3
Size
176KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
aghjddgonhejbnlpfhncfbajpbihhnmf
Developer ID
uc4240c1050df7e446e66192243cb683a
Developer Email
[email protected]
Created
Aug 22, 2023
Last Updated (Store)
May 13, 2026
Last Scraped
Jun 8, 2026
Website
mii.tools
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 8, 2026.