- 1Runs onWeb
- 2CostsFree plan · paid from $15/mo
- 3Publishing automationmanual
- 4Content importmixed
- 5PersonalizationYes
- 6Delivery modelboth
- 7Brand controlsYes
Overview
Letter is a web-based, AI-assisted newsletter builder for creators, designers, and developers. It imports an article’s title, description, and images from a link, and provides more than 50 drag-and-drop design components. Its visual editor lets developers view and edit email component code. The AI assistant can write newsletter introductions and rework article blurbs. Letter also offers a template library and tools for creating publications, hosted pages, creator profiles, image libraries, and marketplace entries. Listed integrations include CodePen, Adobe Express, SendGrid, and HubSpot. Inside Letter, Adobe Express provides template access, background removal, image editing, branded assets, and Creative Cloud Libraries. The Free plan is free and allows one letter, with content import, test sending, and code export. Pro costs 20.00 USD per month and adds unlimited letters, premium components, HubSpot and SendGrid export, and premium support. Pro includes a 30-day money-back guarantee. Publishing automation is manual, and personalization is available.
Who it is for
Letter may suit creators, designers, developers, startups, solo entrepreneurs, and makers who want to build newsletters. Its code editing and export features may be useful to users who work directly with email components.
What is good
- Imports article titles, descriptions, and images from a link.
- Offers more than 50 drag-and-drop design components.
- Editor supports viewing and editing email component code.
- Free plan includes one letter and code export.
- Pro includes a 30-day money-back guarantee.
What to know first
- Free plan allows one letter.
- Publishing automation is manual.
- Free plan does not include premium support.
- Pro costs 20.00 USD per month.
Verdict
Letter pairs visual newsletter building with code editing and AI-assisted writing, and its free tier includes a limited set of core tools. Publishing remains manual, while Pro adds unlimited letters and premium support for 20.00 USD per month.
Letter plans and pricing
All plansCompared on AI newsletter generators
Facts
- Product
- Letter is an AI-assisted newsletter builder for content creators, designers, and developers.letter.so · 30 Sept 2026
- Components
- Letter provides more than 50 prebuilt drag-and-drop design components.letter.so · 30 Sept 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 · 30 Sept 2026
- AI tools
- Letter's AI assistant generates newsletter introductions and rewrites article blurbs.letter.so · 30 Sept 2026
- Templates
- Letter offers a template library and lets users create publications, hosted pages, creator profiles, image libraries, and template marketplace entries.letter.so · 30 Sept 2026
- Integrations
- The homepage lists CodePen, Adobe Express, SendGrid, and HubSpot as plugins or integrations.letter.so · 30 Sept 2026
- Adobe Express
- The Adobe Express integration provides template access, background removal, image editing, branded assets, and Creative Cloud Libraries inside Letter.letter.so · 30 Sept 2026
- API
- Letter API keys authenticate requests for transactional templates, personalized emails, dynamic variables, and real-time template rendering.app.letter.so · 30 Sept 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 · 30 Sept 2026
- Data protection
- The privacy policy says Letter uses commercially acceptable means to protect personal data but cannot guarantee absolute security.letter.so · 30 Sept 2026
- Support
- Premium support is included in the Pro plan, while the site provides a technical-support contact link.letter.so · 30 Sept 2026
- Audience
- Letter describes itself as a newsletter tool for creators, designers, developers, startups, solo entrepreneurs, and makers.letter.so · 30 Sept 2026
- Guarantee
- The Pro plan includes a 30-day money-back guarantee.letter.so · 30 Sept 2026
Company
- Headquarters
- Thornton Cleveleys, Lancashire, United Kingdomletter.so · 28 Sept 2026
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Sources
- letter.so· checked 30 Sept 2026
- letter.so/adobe-express/· checked 30 Sept 2026
- app.letter.so/developers/api-key· checked 30 Sept 2026
- letter.so/privacy-policy/· checked 30 Sept 2026
- letter.so/pricing/· checked 30 Sept 2026