11 Best Email Signature Software in 2026, Compared

WiseStamp is the easiest way for a growing team to get professional signatures without an IT project: pick a template, add your logo and social icons, and deploy it to everyone on Google Workspace or Microsoft 365 in minutes. The $9 Pro+ plan covers one seat, so a solo user pays $9 a month; a team moves to Basic at $19 a month plus $1 per seat, which adds auto-inject and campaign banners.

The catch is the pricing shape. The $9 headline is a single-seat plan, and per-seat costs climb as the team grows — a 10-person team on Basic pays $29 a month, not $9. Server-side routing, which stamps signatures on mobile and webmail too, waits for the Platform or Enterprise plan. Buy WiseStamp for branded signatures this week; buy Exclaimer when every device must carry the same signature.

Exclaimer is the enterprise standard for a reason: it manages signatures centrally for whole organizations, syncing names, titles and departments from Microsoft Entra ID or the Google Workspace directory, so a reorganization never leaves stale signatures behind. Starter costs $0.90 per user a month billed annually, with a 10-user minimum; Standard is $1.45 and Pro is $1.75, adding templates, campaign scheduling and analytics.

The trade-off is scope. Starter allows only one signature template, so most organizations need Standard at $1.45 per user, and the 10-user minimum means the smallest bill is $9 a month. There is no free plan, only a 14-day trial. Buy Exclaimer when brand consistency and legal disclaimers are non-negotiable; buy WiseStamp or Bybrand when the team is small and the budget is tight.

CodeTwo has served Microsoft email for decades, and it shows: one tier carries every feature, including unlimited rules and templates, server-side and client-side deployment, Entra ID sync, marketing banners, legal disclaimers and an autoresponder. Pricing is per mailbox and falls with volume — about $1.22 per user a month for 10 users on annual billing, dropping toward $0.81 at 500 licences.

The limits are platform, not price. CodeTwo covers Microsoft 365 only, so a Google Workspace team needs another tool, and small teams pay the highest per-user rate. Server-side signatures also stay invisible while composing, which confuses some users. Pick CodeTwo when the whole company lives in Microsoft 365 and you want the lowest per-user price from a specialist.

Newoldstamp treats the signature as marketing inventory: banners, calls to action and campaigns ride along in every email, managed centrally, with a scheduler that rotates them on a timetable — product launches, events and announcements appear on schedule. Pricing is per signature, $1.80 a month billed annually, and the generator is quick enough that a small marketing team can be live the same day.

The per-signature model is the thing to price carefully. Ten signatures cost $18 a month, but a 100-person company pays $180, and the analytics that prove the campaigns work sit on paid tiers. Enterprise management is also lighter than Exclaimer or CodeTwo. Choose Newoldstamp when every email is a marketing impression; choose CodeTwo when the priority is IT control, not campaigns.

MySignature is the quick free generator: build a professional signature in minutes, paste it into your email client, and you are done. The free plan covers one signature with MySignature branding; Core costs $6 per user a month billed annually and adds Gmail email tracking, and Connect at $7 adds a digital business card with a second signature for replies and forwards.

The individual plans have no central deployment, so a team that needs every signature identical must step up to the Teams plans, which start at $2.40 per user a month for 5 seats and fall to about $1.90 at 10 seats. Paid signatures also stop working if the subscription lapses. Start here when one person needs to look professional today; move to WiseStamp when consistency across the team becomes the problem.

Bybrand is built for small teams and agencies that need consistent signatures without an enterprise budget: the $8 base plan covers up to 10 signatures with all standard features, and beyond that you pay $0.80 per extra signature created manually, or $0.50 per employee synced through Google Workspace or Microsoft 365. There are no seat minimums and no tiers to decode.

The flat price stops being flat at scale. A 20-signature team pays about $16 a month, and a 100-person company pays about $58, while campaign analytics stay thinner than Newoldstamp or Letsignit. The vendor is also smaller, with a shorter integration list. Pick Bybrand when the team is under 20 people and the budget is $8 a month; look at Exclaimer once the headcount passes 50.

Letsignit turns signatures into a communication channel: marketing campaigns, banners and internal announcements are pushed to signatures centrally, with segmentation by department or location, and digital business cards let recipients save contact details with one tap. The Pro plan starts at $2 per user a month, and it covers both Microsoft 365 and Google Workspace.

The minimum is the catch. The $60 a month floor on an annual commitment means a 10-person team pays $60, not $20, and the Enterprise plan for complex organizations is a custom quote. The vendor is also better known in Europe than in the US. Choose Letsignit when internal communications is the job; choose Exclaimer when compliance, not comms, decides the buy.

Rocketseed gives brand managers control without a tier ladder: one plan, the Signature Complete Solution, includes centrally designed templates, banner campaigns, analytics, CRM integrations and 24/7 support from about $1.25 per user a month on annual billing. Franchise controls are the standout — corporate owns the template while locations customize only the approved fields.

The $50 a month minimum billed annually means a 10-person team pays $50, not $12.50, and the product is built for teams of 40 or more, with custom pricing above 200 users. The vendor is also smaller than Exclaimer, with less ecosystem around it. Pick Rocketseed for franchises and multi-brand groups; pick Bybrand or WiseStamp for a single small team.

Crossware Mail Signature does Microsoft 365 signatures simply and well: centralized templates, directory integration and consistent deployment, at about $1 per user a month depending on user count. It covers hybrid Exchange and Microsoft 365 environments, which suits organizations still migrating, and there are no tiers to compare — one per-user price covers the job.

It does not try to be a marketing platform, so campaign features are thin, and the vendor is smaller than Exclaimer or CodeTwo, with a smaller community around it. The per-user rate also varies with team size, so confirm your exact price before budgeting. Choose Crossware for straightforward Microsoft signatures; choose Newoldstamp when the signature must sell, not just identify.

Symprex Signature 365 keeps pricing as simple as its pitch: all the features for one per-user price, $0.94 a month billed annually — 10 users cost $9.40 a month — with volume discounts as you add licences. Directory sync pulls user details from Microsoft 365, templates apply centrally, and a free 14-day trial starts with no credit card and no commitment.

The focus is narrow: Microsoft 365 only, so Google Workspace teams must look elsewhere, and campaign features are thinner than the marketing-led tools. We also found no G2 rating page for Symprex, so peer feedback is thin compared with the rest of this list. Pick Symprex for straightforward Microsoft signatures at one flat rate; pick CodeTwo when you need the deepest rule engine.

Opensense manages company-wide signatures and turns them into a sales channel: the Signature plan at $1 per user a month covers centrally managed templates and compliance disclaimers, while Pipeline at $3 and Complete at $5 add campaign analytics, sales tracking and CRM integration. Deployment is server-side or through an Outlook add-in, and GCC High support covers regulated teams.

The $1 headline hides a $500 a month platform minimum plus a service plan, so a 10-person company pays $500, not $10 — and banners and directory sync cost $3 to $5 a user on the higher tiers. There is no free plan, and trials are for qualified accounts. Buy Opensense when the organization is large enough to clear the minimum; anyone smaller should start with Bybrand or WiseStamp.