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Letter
Thornton Cleveleys, Lancashire, United Kingdom
What it is
Letter is a web-based newsletter builder for creators, designers, and developers. It imports an article’s title, description, and images from a link, then offers more than 50 drag-and-drop components for newsletter design. The visual editor lets users work with email components directly or view and edit their code. Its AI assistant can draft newsletter introductions and rewrite article blurbs. Letter also includes a template library and tools for creating publications, hosted pages, creator profiles, image libraries, and marketplace entries. Listed plugins and integrations include CodePen, Adobe Express, SendGrid, and HubSpot. Adobe Express tools are available inside Letter for template access, background removal, image editing, branded assets, and Creative Cloud Libraries. The free plan costs $0 and allows one letter, content import, test sending, and code export. Pro costs $20/month and includes unlimited letters, premium components, HubSpot and SendGrid export, and premium support. Publishing automation is manual; personalization is available.
For and against
For
- Imports article details and images from a link
- More than 50 drag-and-drop design components
- AI drafts introductions and rewrites blurbs
- Supports code editing for email components
- Adobe Express tools are available inside Letter
Against
- Free plan allows one letter
- Publishing automation is manual
- Pro costs $20/month
The verdict
Letter combines a visual newsletter editor, code access, and AI writing assistance with tools for building related publication assets. The main plan distinction is one letter on Free versus unlimited letters and premium support on Pro.
Who it suits
Letter suits creators, designers, developers, startups, solo entrepreneurs, and makers who want to build newsletters with visual components and code access. Its free plan is an option for users who need to create one letter.
Plans and prices
Free
1 letter · Content import · Send test · Code export
Read 30 Sep 2026 · letter.so
Pro
Unlimited letters · Content import · Send test · Code export
Read 30 Sep 2026 · letter.so
Pro
Unlimited letters · Content import · Send test · Code export
Read 30 Sep 2026 · letter.so
On the record
- Adobe Express
- The Adobe Express integration provides template access, background removal, image editing, branded assets, and Creative Cloud Libraries inside Letter.letter.so · read 30 Sep 2026
- AI tools
- Letter's AI assistant generates newsletter introductions and rewrites article blurbs.letter.so · read 30 Sep 2026
- API
- Letter API keys authenticate requests for transactional templates, personalized emails, dynamic variables, and real-time template rendering.app.letter.so · read 30 Sep 2026
- Audience
- Letter describes itself as a newsletter tool for creators, designers, developers, startups, solo entrepreneurs, and makers.letter.so · read 30 Sep 2026
- Components
- Letter provides more than 50 prebuilt drag-and-drop design components.letter.so · read 30 Sep 2026
- Content import
- Letter imports titles, descriptions, and images from an article link in one click.letter.so · read 30 Sep 2026
- Data protection
- The privacy policy says Letter uses commercially acceptable means to protect personal data but cannot guarantee absolute security.letter.so · read 30 Sep 2026
- Editor
- Letter includes a clean what-you-see-is-what-you-get editor and lets developers view and edit email component code.letter.so · read 30 Sep 2026
- Guarantee
- The Pro plan includes a 30-day money-back guarantee.letter.so · read 30 Sep 2026
- Integrations
- The homepage lists CodePen, Adobe Express, SendGrid, and HubSpot as plugins or integrations.letter.so · read 30 Sep 2026
- Product
- Letter is an AI-assisted newsletter builder for content creators, designers, and developers.letter.so · read 30 Sep 2026
- Security and privacy
- Letter's privacy policy says it collects email, name, usage data, device data, and uses session and persistent cookies for authentication and service operation.letter.so · read 30 Sep 2026
- Support
- Premium support is included in the Pro plan, while the site provides a technical-support contact link.letter.so · read 30 Sep 2026
- Templates
- Letter offers a template library and lets users create publications, hosted pages, creator profiles, image libraries, and template marketplace entries.letter.so · read 30 Sep 2026
