After installing and configuring Git locally, the next step in most real-world projects is connecting our local repository to a remote repository hosted on platforms like GitHub, GitLab, Bitbucket, or Azure DevOps.
A remote repository is simply a version of our project stored on a server so that we (and possibly your team) can collaborate, back up code, and manage changes centrally.
When working with these remote repositories over HTTPS, Git often asks for authentication during operations like clone, push, or pull. Repeated credential prompts interrupt our workflow—and storing credentials insecurely can expose our account to risk.
That’s where Git Credential Manager (GCM) comes in.
It simplifies authentication with remote Git services, reduces friction, and improves security. In short: it makes working with Git over HTTPS much smoother.
1. What Is Git Credential Manager?
Git Credential Manager (GCM) is a credential helper for Git that securely stores and supplies credentials when accessing remote repositories over HTTPS.
Instead of entering credentials every time, GCM:
- Intercepts authentication requests
- Initiates a secure login flow (OAuth, browser-based sign-in, PAT, etc.)
- Stores credentials securely in our operating system
- Reuses them for future Git operations
Key Characteristics
- Cross-platform – Works on Windows, macOS, and many Linux distributions
- Secure storage integration:
- Windows Credential Manager
- macOS Keychain
- Linux Secret Service
- Supports modern authentication flows – OAuth, Personal Access Tokens (PATs), Multi-Factor Authentication (MFA)
- Designed to replace older, less secure credential storage methods
2. Why It Matters
a) Better Workflow
Without GCM, we may find ourself entering credentials every time we run:
git push
git pull
That breaks our coding flow.
With GCM, we authenticate once, and future operations proceed seamlessly.
b) Enhanced Security
Older credential helpers could store credentials in plain text. That is risky.
GCM:
- Uses our OS’s secure credential store
- Supports token-based authentication
- Works with MFA-enabled accounts
- Avoids storing raw passwords in plain text
This significantly reduces the risk of credential exposure.
c) Works with Modern Git Hosting Policies
Many Git hosting providers no longer allow simple username/password authentication over HTTPS. Instead, they require:
- Personal Access Tokens (PATs)
- OAuth login
- MFA-enabled authentication
GCM supports these modern flows, making it easier to comply with up-to-date security practices.
d) Cross-Platform Consistency
If we switch between Windows, macOS, and Linux—or work in teams with mixed environments—GCM provides a consistent credential experience.
Fewer prompts. Fewer surprises.
3. How It Works (High-Level Flow)
- Git is installed (often already includes GCM).
- Git is configured to use GCM as the credential helper.
- On first HTTPS operation (clone/push/pull), GCM triggers a secure sign-in flow.
- We authenticate via browser or system dialog.
- GCM securely stores the resulting token/session.
- Future Git operations automatically use stored credentials.
- If credentials expire or are revoked, you are prompted again.
4. When & Where to Use It
Use Git Credential Manager if:
- We use Git over HTTPS
- We work with GitHub, GitLab, Bitbucket, Azure DevOps, etc.
- Our organization enforces MFA or token-based authentication
- We want secure credential storage integrated with your OS
- We want to avoid repeated login prompts
If we exclusively use SSH keys, GCM is not required, since SSH uses a different authentication mechanism.
We can check our remote type using:
git remote -v
If it starts with https://, GCM applies.
If it starts with git@, SSH is being used.
5. Basic Setup Steps
Step 1: Install Git
- Windows: Git for Windows includes Git Credential Manager by default.
- macOS: Most official Git installations include it.
- Linux: Some distributions may require installing GCM separately.
Official Git download:
https://git-scm.com/downloads
Step 2: Verify Whether GCM Is Installed
Run:
git credential-manager --version
If installed, we will see a version number.
If you see:
git: 'credential-manager' is not a git command
then Git Credential Manager is not installed or not available in your PATH.
⚠️ Note: Some older tutorials refer to
git credential-manager-core.
That command is outdated. Modern Git usesgit credential-manager.
Step 3: Check Whether Git Is Using GCM
Run:
git config --global credential.helper
If the output is:
manager
then Git Credential Manager is active.
If nothing appears, configure it using:
git config --global credential.helper manager
Step 4: Trigger Authentication
Run any Git command that requires authentication:
git clone https://github.com/owner/repo.git
GCM will initiate a secure sign-in flow (often via browser).
Step 5: Enjoy Seamless & Secure Git Usage
After signing in:
- Credentials are stored securely
- Future pushes and pulls occur without repeated prompts
- Your workflow becomes smoother and more secure
6. Summary
After installing Git, understanding how authentication works is essential before collaborating with remote repositories.
Managing credentials manually is inefficient and potentially insecure. Git Credential Manager provides a robust solution by:
- Securely storing credentials
- Supporting modern authentication (OAuth, PATs, MFA)
- Integrating with your operating system
- Reducing authentication friction
If you plan to work with remote Git repositories over HTTPS, Git Credential Manager is not just convenient—it is essential.
References
- https://github.com/git-ecosystem/git-credential-manager
- https://git-scm.com/book/en/v2/Git-Tools-Credential-Storage
- https://docs.github.com/en/get-started/git-basics/caching-your-github-credentials-in-git
- https://github.blog/security/application-security/git-credential-manager-authentication-for-everyone/