Free Bulk Email Signature Generator from CSV

Create professional, branded email signatures for your entire team instantly. Upload employee data via CSV, map it to your custom HTML template, and export unlimited signatures in bulk.

Quick Start Mode

Don't have files ready?
Use our samples to see how it works instantly.

1

Upload Data Source (CSV)

Drag & Drop your CSV file here

Or click to browse. Supports up to 10,000 rows. We use the 2nd row for Live Preview.

2

Template & Data

Upload HTML Template

Must contain Handlebars {{tags}} like {{Name}}, {{Email}}, etc.

3 Live Preview
Waiting for data...

Upload CSV & Template to see the magic happen.

Leave empty for all rows

Why We Built SigBuilder

Generating standard signatures for an entire organization shouldn't require manual copy-pasting or expensive SaaS subscriptions.

100% Client-Side Privacy

All data mapping happens directly in your browser. Your employee data and CSV files are never uploaded to any server, ensuring complete data privacy and GDPR compliance.

Free Forever - No Hidden Costs

Avoid exorbitant per-user subscription fees from third-party tools. SigBuilder provides enterprise-level bulk generation capabilities completely free of charge, forever.

Total Brand Control

You aren't locked into rigid, clunky drag-and-drop builders. Bring your own HTML/CSS to have full control - signatures render flawlessly across Outlook, Gmail, and Apple Mail.

Integration Guide: Handlebars Variables

Learn how to perfectly map your CSV data to your custom HTML template using Handlebars syntax.

1. Basic Variables

Use your exact CSV Headers without spaces inside double braces. Use triple braces if your CSV cell contains HTML code that needs rendering.

CSV: Name {{Name}}
CSV: Phone Number {{PhoneNumber}}
CSV HTML String {{{HTMLContent}}}
Pro Tip: Ensure your CSV headers don't have trailing spaces (use "Name" not "Name ").

2. Conditional Logic

Prevent awkward empty spaces in your signature by wrapping elements in a condition. If the CSV cell is empty, the HTML inside won't render.

{{#hasValue Position}}
  <p class="title">{{Position}}</p>
{{/hasValue}}

{{#hasValue Mobile}}
  <span>M: {{Mobile}}</span>
{{/hasValue}}

3. Links & Images

You can inject CSV variables directly into standard HTML attributes like href or src.

<img src="{{PhotoURL}}" alt="{{Name}} profile" />

<a href="mailto:{{Email}}">{{Email}}</a>
<a href="{{Website}}">Visit Site</a>

4. Output & Exporting

When you click Generate & Download ZIP, the system processes your entire batch locally:

  • Generates a standalone .html file per user.
  • Names files automatically (John-Doe.html) to prevent overrides.
  • Packages them instantly into a .zip archive.
Pro Tip: Use the limit input to test with 2-3 rows before processing a massive spreadsheet with 1000+ employees!
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