Substack Password Rules Checker
Check if your password meets Substack requirements and generate secure passwords that comply with their rules
Substack Password Requirements
Length
Minimum: 8 characters • Maximum: 72 characters
Character Requirements
No specific character requirements
Restrictions
Cannot contain: Allowed characters: alphanumeric+symbols
Substack supports 8-72 character passwords for newsletter platform
Example Passwords
SubstackSecure123!
Newsletter2025
Password Strength
All passwords are generated locally and never sent to any server
Check Your Password
Enter your current password to check if it meets Substack requirements
Generate Substack-Compliant Password
Create a secure password that meets all Substack requirements
Other blogging Tools
More password tools for blogging platforms
Security Best Practices
Keep your Substack account secure with these tips
Use Unique Passwords
Never reuse passwords across different websites or accounts
Enable Two-Factor Authentication
Add an extra layer of security to your Substack account
Update Regularly
Change your Substack password every few months
Use a Password Manager
Store passwords securely and generate strong, unique passwords
Avoid Personal Information
Don't use birthdays, names, or other personal details
Watch for Phishing
Always verify you're on the real Substack website
Frequently Asked Questions
Common questions about Substack password requirements
Substack will reject passwords shorter than 8 characters. You'll need to create a longer password that meets their minimum length requirement.
Yes, Substack supports special characters in passwords. Using symbols enhances newsletter security.
It's recommended to change your Substack password every 3-6 months, or immediately if you suspect it has been compromised.