OttoRice installs complete desktop rice/theme setups on Windows from a JSON manifest, with transactional backup and automatic rollback. Paste a theme repository's URL, review exactly what will change, and OttoRice installs the tiling window manager, status bar, terminal color scheme, wallpaper - even editor themes and Windhawk mods - as one transactional operation you can always undo. Supported apps include GlazeWM, YASB Reborn, Zebar, Windows Terminal, VS Code, Zed, Fastfetch, Flow Launcher, Oh My Posh, and Windhawk mods (Taskbar/Start Menu/Notification Center Styler). If anything fails partway through an install, everything already applied is rolled back automatically.
Publisher’s description
What is OttoRice?
OttoRice is an open-source customisation program for Windows from Otto. It is written in C#.
Installation and requirements
Official installers exist for 64-bit as EXE (Inno Setup). It can be installed for the current user only, without administrator rights. The installer supports unattended (silent) installation.
Project description on GitHub: “Gerenciador de temas (rices) para Windows — GlazeWM + YASB + Windows Terminal a partir de um manifesto JSON, com backup transacional e rollback”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
Cons
- No native ARM64 build
In short: OttoRice is an open-source customisation tool for 64-bit PCs. Administrators can deploy it unattended.
Is OttoRice safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
0664E6CD9C47D51B6BBD8BAB67578DF9DC378C21DE6206C7CA0EF580F05F4784· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.0.7Latest | August 25, 2026 | — | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id GuiOttoni.OttoRice -eOttoRice-Setup-1.0.7.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Otto
- Category
- Customisation
- Licence
- MIT
- Price
- Free
- Source code
- github.com/GuiOttoni/ottorice
- Written in
- C#
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 1.0.7
- Released
- August 25, 2026
- Added to the catalogue
- September 23, 2026
- Versions listed
- 1
- Website
- github.com
- winget ID
- GuiOttoni.OttoRice
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is OttoRice free?
Yes. OttoRice is open-source software under the MIT licence.
Is OttoRice safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install OttoRice with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can OttoRice be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does OttoRice run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use OttoRice without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to OttoRice?
PowerToys, Scribus, Rainmeter, Mattermost and TranslucentTB. The alternatives page compares them.
