gSignature

Freemium#5 of 29 in Email Signature Software

gSignature: A flexible, budget-conscious choice for centralized signatures across mixed email environments. Ranked #5 of 29 in Email Signature Software by our editors (8.9/10); pricing: Free plan · 14-day trial; best for budget-conscious mixed-platform teams.

8.9/10★★★★☆Editor score

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At a glance

• Editor score
  8.9 / 10
• Pricing
  Free plan · 14-day trial
• Best for
  Budget-conscious mixed-platform teams
• Free plan
  Yes
• Email platforms
  Google_workspace
• Founded
  2023 · Wrocław, Poland
• Facts checked
  21 Sep 2026

• Where it wins

  • Free plan with per-user pricing
  • Server-side insertion and automatic directory updates
  • Analytics, API access, and Google and Microsoft coverage

• Where it doesn't

  • Advanced integrations and reporting are reserved for Growth
  • Individual onboarding and dedicated SLAs require Enterprise
  • Chrome extension deployment is focused on Gmail

Our verdict on gSignature

gSignature is a cloud-based platform for creating, deploying, synchronizing, and updating employee email signatures. It is designed for organizations that need centralized control across domains, groups, organizational units, or entire domains, with support for Google Workspace, Microsoft 365, Outlook, and Exchange Online. Administrators can create custom HTML signatures with variables, links, banners, and legal disclaimers, while assigning separate internal and external versions and controlling employee editing permissions.

The plan structure covers different levels of administrative control. Free provides a free plan with per-user pricing. Core adds centralized HTML email signature management and core implementation features. Growth adds advanced integrations, reporting, and template-management capabilities. Enterprise adds individual onboarding, dedicated SLAs, extended permissions, proxy server options, and custom-domain options. A 14-day free trial is also available. This makes gSignature suitable for teams that want to start without a paid commitment, while larger organizations can move toward more specialized administration and service terms.

Its platform fit is a major strength. gSignature synchronizes employee data with Google Workspace, Microsoft 365, Outlook, and Exchange Online, supports CSV import and export, offers Gmail deployment through a Chrome extension, and provides API access. Server-side signature insertion helps apply signatures across email clients and systems, while automatic updates reflect directory changes. Analytics cover clicks, opens, CTR, and element performance. Teams seeking centralized management, automation, and measurement should find the feature set well aligned; organizations specifically seeking open-source software, or Gmail-only teams that do not need broader administration, may prefer a narrower option.

Questions about gSignature

Is there a free trial of gSignature? Yes: a 14-day free trial; no card is needed.

What does gSignature run on? Web, Windows and Chrome extension. It runs in the cloud, as a desktop app and as a browser extension.

What does gSignature integrate with? 11 integrations, including Google Workspace, Gmail API, Microsoft 365, Outlook and Exchange Online.

Who is gSignature built for? Small businesses, mid-market companies and enterprises (our editorial estimate).

Your product? Our editors can test gSignature in depth and publish a review, labelled as paid · from $149/mo →

gSignature pricing

gSignature fact sheet

gSignature integrations

gSignature lists 11 integrations on its own site.

• Google Workspace
• Gmail API
• Microsoft 365
• Outlook
• Exchange Online
• Google Groups
• Pipedrive
• Salesforce
• HubSpot
• Zendesk
• Calamari

See all gSignature integrations →

Alternatives to gSignature

• ExclaimerA mature choice for governed, multi-team email signature management.9.4
• LetsignitA campaign-focused signature platform with broad deployment and analytics.9.2
• OpensenseA $1-per-user platform for managed signatures, campaigns, integrations, and analytics.9.1

See all gSignature alternatives →

gSignature vs the competition

• gSignature vs Exclaimer
• gSignature vs Letsignit
• gSignature vs Opensense
• gSignature vs CodeTwo Email Signatures 365
• gSignature vs WiseStamp
• gSignature vs Crossware Email Signature

Compare gSignature with any tool side by side →

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Featured on iTechGuides

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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Last updated 14 Nov 2026 · How we research and update