Powerful features,
simple experience
Every tool you need to design, manage, and deploy professional email signatures across your entire organization.
14 professionally designed templates
Choose from 6 Classic templates for a clean, corporate look or 8 Creative templates for something with more personality. Every template supports full design customization — colors, fonts, spacing, and per-field typography controls that let you style each element individually.
Clean
Side by Side
Professional
Sophisticated
Bold
Compact
Pixel-perfect design controls
Go beyond basic color pickers. Customize font scale, line spacing, per-field typography (name, title, company each get their own style), social icon fill and shape, label format, and detail separators. Your signature, your rules.
Manage your whole team's signatures
Invite team members, assign roles (member, admin, owner), and enforce brand consistency across your organization. Create corporate signature templates with locked fields — your team fills in their details, the brand stays intact.
Team Members
+ InviteSarah Chen
Marcus Johnson
Elena Rodriguez
David Kim
One account, multiple brands
Run different businesses from a single Byline account. Each domain gets its own template, color palette, font, and design settings. Perfect for entrepreneurs with multiple LLCs, agencies managing client brands, or companies with distinct divisions.
acmecorp.com
Professional template · 8 members
acmeventures.io
Bold template · 3 members
acmecreative.co
Minimal template · 5 members
Enterprise-grade security at every plan
Two-factor authentication (TOTP and email), configurable password policies, automatic account locking after failed attempts, and DNS domain verification. Your team's credentials are protected with bcrypt hashing and AES-256 encryption.
Two-Factor Authentication
TOTP app, email codes, or backup codes
Password Policies
Min length, uppercase, numbers, special chars
Account Locking
Auto-lock after failed attempts
DNS Domain Verification
TXT record verification for your domains
Device Trust
Remember trusted devices for 30 days
Company-controlled signature templates
Create corporate signature presets with company-owned fields like CTAs, taglines, and disclaimers. Team members see a gallery of approved signatures and install them with their own contact details automatically filled in. Brand consistency without the micromanagement.
Standard
Default company signature
Marketing Campaign
Q1 product launch CTA
Holiday
Seasonal greeting footer
See how your signature performs
Enable click tracking on any signature and know exactly which links your recipients are clicking. Track CTA buttons, social icons, website links, and meeting links — all without cookies or fingerprinting. GDPR-friendly by design.
Your contact info, one link away
Create a digital business card that works like a personal landing page — your name, photo, contact details, and social links all in one place. Share it with a link or QR code. Visitors save your info to their phone in one tap. Choose from 8 hand-crafted templates, each with full color and font customization.
Obsidian
Dark luxury
Aurora
Gradient mesh
Folio
Classic warmth
Neon
Electric glow
+ 4 more templates: Editorial, Glass, Split, Kinetic
And so much more
Every detail is designed to save you time and make your signatures look incredible.
Image Support
Upload photos, logos, or banners. Choose circle, square, or rounded shapes. Add animated crossfade transitions between two images.
Social Links
Add LinkedIn, Twitter/X, Facebook, Instagram, YouTube, and GitHub links with customizable icon styles — filled, outlined, or plain.
CTA Buttons
Add a call-to-action button with custom text and URL. Drive traffic to your latest campaign, booking page, or product launch.
Click Tracking
Know which links get clicked. Track CTA, social, website, and meeting links with privacy-first analytics — no cookies, no fingerprinting, GDPR-friendly.
Live Preview
See your signature update in real time as you make changes. No guessing — what you see is what your recipients see.
Undo Support
Made a mistake? Hit Cmd+Z (or Ctrl+Z) to undo up to 50 changes. Experiment freely without fear.
Export & Import
Export your signature configuration as JSON to back it up or share it. Import configurations to duplicate setups across accounts.
Email Preview
Preview your signature in a realistic email draft mockup — see exactly how it looks in context before installing it.
Guided Onboarding
10 context-aware spotlight tours walk you through every feature on your first visit. No manual, no guessing.
Domain Verification
Verify domain ownership via DNS TXT records. Only verified domains can be used in team signatures — no spoofing, no mistakes.
Ready to build better signatures?
Start with our free plan — no credit card, no time limits, no branding. Upgrade when you're ready.