SignatureCat
Smart variables
{{firstname}}{{lastname}}{{jobtitle}}{{department}}{{email}}{{phone}}{{photo}}{{address}}{{domain}}
Centrally manage Gmail signatures in your Google Workspace.
Design one signature template, target users, groups or org units, and let SignatureCat keep every Gmail signature personalized and always up to date — automatically.
Built on the Google Workspace platform
Gmail API
Admin SDK Directory
Domain-Wide Delegation
GCP Secret Manager
Features
Everything you need for consistent company-wide signatures
A focused toolset that turns one template into perfectly personalized signatures for every person in your Workspace.
Personalized per user
Conditional blocks
{{del}} … {{/del}}{{delete}} … {{/delete}}Precise targeting
Automated rollout
Always up to date
How it works
From template to every inbox in three steps
Connect your Workspace
Design your template
Target & apply
Security
Security and privacy built into the foundation
SignatureCat is designed around least-privilege access, strong encryption and EU data residency — so you can roll it out with confidence.
Keys in GCP Secret Manager
Encrypted at rest
Strict tenant isolation
We don't store your people's data
EU data residency
Injection-safe rendering
RODO / GDPR — DPA available
Append-only audit log
No marketing cookies
PITR disaster recovery
Pricing
Simple per-seat pricing that scales with you
Pay only for active users in your Workspace. The more seats, the lower the per-seat rate — billed monthly in USD.
$19.20
/ month
Estimated monthly total for 25 users.
Your effective rate: $0.80 / user / moGraduated pricing: each seat is billed at its tier's rate. Totals are estimates excluding tax; final billing is handled by Stripe.
1 userSolo Workspace
Free
2 – 50 usersSmall teams
$0.80 / user / mo
51 – 120 usersGrowing companies
$0.70 / user / mo
121+ usersLarge organizations
$0.60 / user / mo
Read the full documentation
Architecture, the signature engine, variables, security and compliance — everything is documented and publicly available.
FAQ