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What is SG Widget?

SG Widget provides a customizable opt-in form specifically designed for Sendgrid, enabling you to effortlessly collect email addresses on your website, including those created with WordPress. This tool is not only easy to use but also remarkably effective, facilitating seamless integration with SendGrid Marketing Campaigns. A well-organized and user-friendly backend is essential for any effective tool, and SG Widget offers a detailed dashboard that allows users to create, edit, and preview their widgets with ease. By leveraging smart defaults, we reduce the need for extensive setup while still giving you the option to personalize our beautifully designed forms. As a proud partner of Sendgrid and an active participant in the Sendgrid Accelerate Program, we have crafted a solution that interacts with their API independently. To protect your entire SendGrid account, you can simply generate a Restricted Access API Key that limits functionality to marketing campaigns only. Our comprehensive documentation provides detailed instructions, and you have the ability to create multiple widgets for a single website or even across various sites, greatly enhancing your marketing efforts. This level of flexibility allows you to adapt your email collection methods to meet your specific needs, ensuring optimal engagement with your audience. Additionally, the intuitive design of SG Widget ensures that even those new to marketing technology can effectively utilize its features without a steep learning curve.

What is Coldletter?

Coldletter is a product email platform that combines visual email design, template management, automation, and developer-friendly delivery workflows in one workspace. The platform is built to sit on top of existing sending providers, including SendGrid, Postmark, Amazon SES, Mailgun, Resend, and SparkPost. This allows teams to improve how emails are created and managed while continuing to rely on trusted providers for actual delivery. Coldletter’s editor lets users design emails like documents, using drag-and-drop blocks, reusable partials, typed variables, and real-time previews. Templates are built to be responsive, accessible, and dark-mode-safe, reducing the need for manual table-based HTML or MJML workarounds. Developers can send any template with one API call while Coldletter merges customer data, renders the email, chooses the configured route, and handles delivery safeguards. The platform also includes automation journeys with triggers, delays, branching logic, A/B testing, and scheduled sends. Teams can manage template versions like code, review diffs, roll back changes, run test sends, and require approvals before updates reach production. Localization features allow companies to create translated template variants that resolve automatically at send time. Unified analytics help teams track opens, clicks, bounces, and deliverability across multiple providers. Coldletter helps product, lifecycle, design, and engineering teams create better emails faster while keeping delivery reliable and workflows organized.

Media

Media

No images available

Integrations Supported

Integrations Supported

Amazon SES
Postmark
SendGrid

API Availability

API Availability

Pricing Information

$35.00/year/user

Pricing Information

$0
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Standard Support

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

Leader Internet

Company Location

Spain

Company Website

sgwidget.com

Company Facts

Organization Name

Optosoftware inc.

Date Founded

2025

Company Location

Canada

Company Website

coldletter.com

Categories and Features

Lead Generation

Lead Capture

Categories and Features

Email Marketing

Not specified

Email Template Design

Not specified

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