Taxi for Email vs. Coldletter

Experience a new era of collaborative and scalable email production designed specifically for both brand and agency teams. Transform the way your marketing emails are crafted by implementing a versatile, modular Email Design System utilizing our straightforward yet powerful syntax. This innovation allows your copywriters and editors, who know your content best, to take charge of crafting emails autonomously. Our intuitive drag-and-drop visual editor makes it easy for them to build stunning emails without needing any HTML expertise. You can either download the HTML for integration into your existing platform or effortlessly link Taxi to your Email Service Provider (ESP). Empower your team by effectively managing user access and permissions, which enhances collaboration. By simplifying the email campaign creation process, you can react more quickly to shifts in the market and stay ahead of competitors. Enjoy the capability to send test emails in real-time during editing and leverage integrations like Litmus to see how your designs render across over 90 different email clients and devices. Set up complex campaigns that accommodate various languages and audience segmentation with just a few clicks to ensure effective communication with your target groups. Building an Email Design System not only standardizes your formatting and layouts but also ensures that your campaigns consistently uphold your brand's identity. In the end, this strategy not only boosts productivity but also fosters greater creativity within your marketing initiatives, creating a more dynamic approach to email communication. Embrace this system to unleash your team’s full potential in email marketing.

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.