Free web
Free source (opens in a new tab)
Month
For: Trying email generation
Limits
- 5 AI credits per month
- 1 brand profile
1 more
- 250 MB media storage
Includes
- Visual block editor
- MJML and HTML export
No API
Productivity & writingDocumented overviewLast checked Sep 29, 2026
Letro: Pricing, Features & Best Use Cases
AI email designer that generates MJML/HTML emails from a prompt or screenshot and exports to any email service provider.
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Our take: Letro is a good fit for marketers who want production-ready MJML or HTML emails drafted from a brief or screenshot and exported to any email service provider.
Main limitation: Generation is credit-limited: Free gives 5 AI credits a month, and the knowledge base is not on Free.
Is Letro right for you?
Letro is a good fit for marketers who want production-ready MJML or HTML emails drafted from a brief or screenshot and exported to any email service provider. Based on the vendor's documentation, not on a hands-on test.
Best for: Marketers
Also a good fit for
- Small e-commerce teams
- Agencies producing email templates
Consider another tool if free plan limited to 5 AI credits per month
Or if
- Knowledge base not included on Free
- Credit-based, extra credits are top-ups
Letro pricing and usage limits
Prices checked Sep 29, 2026 on the official US pricing page. Official pricing ↗ Prices and limits change often.
Free access and trial conditions
Free plan forever with 5 AI credits per month
Free plan acts as the trial
Paid plans: what changes as you upgrade
Starter web
$15/mo source (opens in a new tab)
Month
For: Regular senders
Limits
- 25 AI credits per month
- 5 GB media storage
Includes
- Unlimited brand profiles
- Knowledge base
1 more
- MJML and HTML export
No API
Pro web
$39/mo source (opens in a new tab)
Month
For: Agencies and busy marketers
Limits
- 75 AI credits per month
- 20 GB media storage
Includes
- Unlimited brand profiles
- Knowledge base
1 more
- Visual block editor
No API
Usage caps, credits and extra costs
Top-up of 12 credits for $9, no subscription; top-ups never expire
Not stated
What is Letro, and how does it work?
Letro is an AI email designer. Users describe an email in plain language or upload a screenshot, and the tool generates MJML that can be refined in a visual block editor. It can pull brand colors, fonts and logo from a website URL, use uploaded brand documents as context, and export HTML or MJML for ESPs such as Mailchimp, Klaviyo and SendGrid.
What you provide and what you get back
You provide
- Plain-language email brief
- Screenshot of an existing email
- Brand website URL and brand documents
You get back
- MJML email source
- Production HTML
- Editable block layout
Where you can use it
- Platforms
- Web
- Account
- Required
- Export
- HTML, MJML
- Inputs
- Prompt, screenshot, URL
- Credit cost
- 1 per email, 0.5 per refinement
- Storage
- 250 MB / 5 GB / 20 GB
- ESP list
- Mailchimp, Klaviyo, Brevo, SendGrid and more
Best use cases for Letro
Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.
Generate marketing emails from a text brief
- Who
- Marketers and e-commerce teams
- You provide
- A short brief covering tone, goal and offer
- Expected result
- A complete MJML email ready to refine
- Plan needed
- Free for 5 credits
- Limitation
- 1 credit per full generation source (opens in a new tab)
Recreate an existing email from a screenshot
- Who
- Designers cloning a layout
- You provide
- A screenshot of the email
- Expected result
- An editable MJML rebuild of the layout
- Plan needed
- Any plan
- Limitation
- Uses 1 credit; fidelity depends on the image source (opens in a new tab)
Apply brand styling automatically
- Who
- Agencies with several clients
- You provide
- A client's website URL
- Expected result
- Brand colors, fonts and logo applied
- Plan needed
- Starter or Pro for unlimited profiles
- Limitation
- Free has 1 brand profile source (opens in a new tab)
Export to an email service provider
- Who
- Email marketers
- You provide
- A finished design
- Expected result
- HTML or MJML for Mailchimp, Klaviyo, SendGrid and others
- Plan needed
- Any plan
- Limitation
- Manual import into the ESP source (opens in a new tab)
Letro features and their limits
Prompt-to-MJML generation
Writes the email as MJML from a plain-language description Gets a draft in seconds
Screenshot cloning
Reconstructs an email design from a screenshot as editable MJML Recreates layouts without coding
Visual block editor
Lets you click, drag and edit blocks, colors and padding Refine without code
Brand profile extraction from URL
Pulls brand colors, fonts and logo from a website Keeps emails on-brand
Knowledge base
Uses uploaded brand documents as context Improves tone and facts
Letro: strengths and limits
Reasons to choose Letro
- Free plan available at $0 You can generate real emails before paying documented source (opens in a new tab)
- Exports HTML and MJML Output is portable across tools documented source (opens in a new tab)
- Multiple brand profiles on paid plans Agencies can run many clients documented source (opens in a new tab)
- Works with any ESP via export No lock-in to one email platform documented source (opens in a new tab)
- Top-up credits never expire Spare credits are not wasted documented source (opens in a new tab)
Check before paying for Letro
- Free plan limited to 5 AI credits per month Only a few emails per month documented source (opens in a new tab)
- Knowledge base not included on Free No brand document context at no cost documented source (opens in a new tab)
- Credit-based, extra credits are top-ups Heavy months cost extra documented source (opens in a new tab)
- Account required (sign-in) Cannot try without signup documented source (opens in a new tab)
- No direct ESP send Exports must be imported manually documented source (opens in a new tab)
How to use Letro for generating a branded email as MJML
Set up Letro
- Sign up for the free plan at letro.ai
- Enter your website URL so Letro extracts brand colors, fonts and logo
- Optionally upload brand documents (Starter and above)
Example: generating a branded email as MJML
- Type a brief such as a re-engagement email with a 20% discount
- Click Generate and wait for the MJML draft
- Adjust blocks, colors and padding in the visual editor
- Export HTML or MJML and import it into your ESP
Review and export the result
- Preview the email in the editor on desktop and mobile widths
- Send a test from your ESP before the full send
A re-engagement email for lapsed subscribers with a 20% discount offer, friendly tone, one clear button.
Letro integrations
Native integrations and export formats
Export: HTML, MJML
Privacy, data use and commercial rights
Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.
How your inputs and outputs are handled
Prompts, screenshots, website URLs and brand documents are processed to produce emails
Not stated
Not stated
Commercial use and plan restrictions
Not stated
Not stated
Policies: letro.ai/privacy
Best Letro alternatives for different needs
"Better suited" is based on documented features and pricing, not on a head-to-head test.
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Jasper: better suited to
Explore Letro further
Letro pricing, plan by planEvery plan with USD prices, limits and what is free.Best Letro alternativesTools for the same job, by need and starting price.Best AI writing and productivity toolsOur picks in this category, compared by price and free tiers.Prompts for LetroReady-to-copy prompts with their sources.
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Letro FAQ
How much does Letro cost?
Free is $0 with 5 AI credits per month, Starter is $15 with 25 credits and Pro is $39 with 75 credits. source (opens in a new tab)
What counts as one credit?
One full email generation or one screenshot-to-email costs 1 credit; refining an existing email costs 0.5. source (opens in a new tab)
Which email platforms does it work with?
Any ESP through HTML or MJML export, including Mailchimp, Klaviyo, Brevo, Customer.io, Postmark, Resend, SendGrid, ActiveCampaign, HubSpot and Drip. source (opens in a new tab)
Do credits roll over?
Credits reset monthly on paid plans, and top-up credits never expire. source (opens in a new tab)
Can I buy extra credits?
Yes, 12 credits cost $9 as a top-up without a subscription. source (opens in a new tab)
Sources and review methodology
Official sources and verification dates
- Letro home page pricing · checked Oct 1, 2026
- Letro pricing section homepage · checked Oct 1, 2026
Not verified: Privacy terms; API; US availability; Model used.
How we documented and maintain this page
Every fact about Letro above comes from the 2 official pages listed here, last compared on Sep 29, 2026; we have not run Letro ourselves, so it has no editorial score. How we check and re-check pages.
Article updated Oct 10, 2026; prices checked Sep 29, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error