Installation

Download Yasumu

Yasumu is available as a native desktop application for Windows, Linux, and macOS. Download the latest version from the official website:

Download Yasumu

Get the latest installer for your operating system

Yasumu is currently in Beta. While the core functionality is stable, some features may be incomplete or have bugs. We appreciate your feedback!

System requirements

Yasumu is built with Tauri, which provides a lightweight native application with minimal resource usage.

Minimum requirements

Operating System: Windows 10+, macOS 10.15+, or modern Linux distribution
RAM: 2 GB (4 GB recommended)
Disk Space: 200 MB for installation
Display: 1280x720 minimum resolution

Recommended requirements

RAM: 4 GB or more
Disk Space: 500 MB (for workspace files and logs)
Display: 1920x1080 or higher

Platform-specific installation

Windows
macOS
Linux

Windows installation

Yasumu provides two installer formats for Windows:

.msi installer (recommended) - Standard Windows installer package
.exe installer - Standalone executable installer

Download the installer

Visit yasumu.dev/download and download either:

Yasumu_x64_en-US.msi for 64-bit Windows
Yasumu_x64-setup.exe for 64-bit Windows

Most modern Windows systems are 64-bit. If you’re unsure, check Settings > System > About > System type.

Run the installer

Double-click the downloaded file to start the installation.For .msi installer:

Click “Next” on the welcome screen
Choose installation location (default: C:\Program Files\Yasumu)
Click “Install”
Click “Finish” when complete

For .exe installer:

Windows may show a security warning. Click “More info” then “Run anyway”
Follow the on-screen prompts
The installer will automatically extract and install Yasumu

Launch Yasumu

After installation:

Find Yasumu in the Start Menu
Or launch from the desktop shortcut (if created)
Or run from the installation directory

Pin Yasumu to your taskbar for quick access: Right-click the icon while running and select “Pin to taskbar”.

Windows troubleshooting

SmartScreen warning

Windows SmartScreen may warn about the app being from an unknown publisher. This is normal for new applications.To proceed:

Click “More info”
Click “Run anyway”

This warning will disappear as Yasumu gains more users and Microsoft recognizes the signature.

Installation fails

If installation fails:

Ensure you have administrator privileges
Temporarily disable antivirus software
Try the alternative installer format (.msi vs .exe)
Check Windows Event Viewer for error details

App won't launch

If Yasumu won’t start:

Check that you meet the minimum Windows 10 requirement
Update Windows to the latest version
Install Microsoft Edge WebView2 (usually installed automatically)
Try running as administrator (right-click > Run as administrator)

macOS installation

Yasumu is distributed as a .dmg disk image for macOS.

Download the disk image

Visit yasumu.dev/download and download:

Yasumu_universal.dmg for both Intel and Apple Silicon Macs

The universal build works on all modern Macs. No need to choose between Intel and Apple Silicon.

Install the application

Double-click the downloaded .dmg file to mount it
A window will open showing the Yasumu app icon and Applications folder
Drag the Yasumu icon to the Applications folder
Wait for the copy to complete
Eject the disk image (right-click the mounted disk and select Eject)

Launch Yasumu

Open Finder > Applications
Find and double-click Yasumu
If macOS shows a security warning (“Yasumu is from an unidentified developer”):
- Open System Settings > Privacy & Security
- Scroll down to find the warning about Yasumu
- Click “Open Anyway”
- Confirm by clicking “Open”

Add Yasumu to your Dock for quick access: Drag the app from Applications to your Dock while holding the mouse button.

macOS troubleshooting

Gatekeeper blocks the app

macOS Gatekeeper may prevent Yasumu from opening because it’s not signed with an Apple Developer ID.To bypass Gatekeeper:

Open System Settings > Privacy & Security
Scroll to Security section
Click “Open Anyway” next to the Yasumu warning
Enter your password when prompted

Alternative method:

Right-click Yasumu in Finder
Hold Option key and select “Open”
Click “Open” in the confirmation dialog

App is damaged or incomplete

If macOS says the app is “damaged” or “incomplete”:

Delete the app from Applications
Empty the Trash
Re-download the .dmg file
Verify the download completed successfully (check file size)
Re-install following the steps above

Performance on Apple Silicon

Yasumu runs natively on Apple Silicon (M1/M2/M3) Macs. If you experience issues:

Ensure you downloaded the universal build
Check Activity Monitor to verify it’s running as “Apple” (not “Intel”)
Update macOS to the latest version

Linux installation

Yasumu provides multiple package formats for Linux:

.AppImage - Universal, no installation required
.deb - For Debian, Ubuntu, Linux Mint, Pop!_OS, etc.
.rpm - For Fedora, RHEL, CentOS, openSUSE, etc.

Download the package

Visit yasumu.dev/download and download the appropriate package:

Yasumu_amd64.AppImage for x86_64 systems (most common)
Yasumu_amd64.deb for Debian-based distributions
Yasumu_x86_64.rpm for Red Hat-based distributions

If you’re unsure which format to use, choose .AppImage for maximum compatibility.

Install or run the application

AppImage
Debian/Ubuntu (.deb)
Fedora/RHEL (.rpm)

AppImages don’t require installation. Just make them executable and run:

# Make executable
chmod +x Yasumu_amd64.AppImage

# Run the app
./Yasumu_amd64.AppImage

For better desktop integration, move it to a standard location:

mkdir -p ~/.local/bin
mv Yasumu_amd64.AppImage ~/.local/bin/yasumu

Install using dpkg or your package manager:

# Using dpkg
sudo dpkg -i Yasumu_amd64.deb

# Fix dependencies if needed
sudo apt-get install -f

Or use apt:

sudo apt install ./Yasumu_amd64.deb

Install using rpm or dnf:

# Using dnf (recommended)
sudo dnf install Yasumu_x86_64.rpm

# Or using rpm
sudo rpm -i Yasumu_x86_64.rpm

Launch Yasumu

After installation:From application menu:

Open your application launcher (GNOME Activities, KDE Application Menu, etc.)
Search for “Yasumu”
Click to launch

From terminal:

yasumu

For AppImage:

~/.local/bin/yasumu

Linux troubleshooting

AppImage won't run

If the AppImage doesn’t start:

Ensure it’s executable:
```
chmod +x Yasumu_amd64.AppImage
```

Install FUSE if missing:

# Ubuntu/Debian
sudo apt install fuse libfuse2

# Fedora
sudo dnf install fuse fuse-libs

# Arch
sudo pacman -S fuse2

Try extracting and running directly:

./Yasumu_amd64.AppImage --appimage-extract
./squashfs-root/yasumu

Missing dependencies (.deb/.rpm)

If installation fails due to missing dependencies:Debian/Ubuntu:

sudo apt-get update
sudo apt-get install -f

Fedora:

sudo dnf install webkit2gtk3 gtk3 libayatana-appindicator

Arch:

sudo pacman -S webkit2gtk gtk3 libappindicator-gtk3

Desktop integration issues

If Yasumu doesn’t appear in your application menu:

Create a desktop entry manually:

nano ~/.local/share/applications/yasumu.desktop

Add the following content:

[Desktop Entry]
Name=Yasumu
Comment=Modern API laboratory
Exec=/path/to/yasumu
Icon=yasumu
Type=Application
Categories=Development;Network;
Terminal=false

Update desktop database:

update-desktop-database ~/.local/share/applications

First launch

When you launch Yasumu for the first time:

You’ll see the welcome screen
Choose to “Create New Workspace” or “Open Existing Workspace”
Follow the quickstart guide to create your first API request

Yasumu stores workspace data locally on your machine. No account, no cloud sync, no telemetry.

Updating Yasumu

Yasumu does not currently have automatic updates. To update:

Visit yasumu.dev/download
Download the latest version
Install over the existing version (your workspaces are stored separately and won’t be affected)

Star the GitHub repository to stay notified of new releases.

Uninstalling Yasumu

Windows
macOS
Linux

Open Settings > Apps > Installed apps
Find Yasumu in the list
Click the three dots and select “Uninstall”
Follow the prompts

Or use the Control Panel:

Open Control Panel > Programs > Programs and Features
Find and select Yasumu
Click “Uninstall”

Open Finder > Applications
Find Yasumu
Drag it to the Trash
Empty the Trash

To remove all data:

rm -rf ~/Library/Application\ Support/com.yasumu.app
rm -rf ~/Library/Caches/com.yasumu.app

For .deb packages:

sudo apt remove yasumu

For .rpm packages:

sudo dnf remove yasumu
# or
sudo rpm -e yasumu

For AppImage:

rm ~/.local/bin/yasumu
rm ~/.local/share/applications/yasumu.desktop

Remove all data:

rm -rf ~/.config/yasumu
rm -rf ~/.local/share/yasumu

Uninstalling Yasumu does not delete your workspace files. These are stored in your project directories and must be removed manually if desired.

Next steps

Now that you have Yasumu installed:

Quickstart guide

Create your first workspace and make your first API request

CLI installation

Install the Yasumu CLI for automated testing in CI/CD

Get Started

Core Concepts

Features

Guides

Download Yasumu

Download Yasumu

System requirements

Minimum requirements

Recommended requirements

Platform-specific installation

Windows installation

Windows troubleshooting

macOS installation

macOS troubleshooting

Linux installation

Linux troubleshooting

First launch

Updating Yasumu

Uninstalling Yasumu

Next steps

Quickstart guide

CLI installation

Build docs developers (and LLMs) love

Get Started

Core Concepts

Features

Guides

​Download Yasumu

Download Yasumu

​System requirements

​Minimum requirements

​Recommended requirements

​Platform-specific installation

​Windows installation

​Windows troubleshooting

​macOS installation

​macOS troubleshooting

​Linux installation

​Linux troubleshooting

​First launch

​Updating Yasumu

​Uninstalling Yasumu

​Next steps

Quickstart guide

CLI installation

Build docs developers (and LLMs) love

Download Yasumu

System requirements

Minimum requirements

Recommended requirements

Platform-specific installation

Windows installation

Windows troubleshooting

macOS installation

macOS troubleshooting

Linux installation

Linux troubleshooting

First launch

Updating Yasumu

Uninstalling Yasumu

Next steps