SendLint autonomously checks your email against the source deck, accessibility standards, links, rendering, spam triggers, and brand voice — in one pass.
Free during beta. No credit card required.
Stop juggling 5 tools. SendLint runs copy alignment, accessibility, links, rendering, spam, and brand voice in a single autonomous pass.
Upload your source deck alongside the email. AI cross-references key messages, CTAs, stats, and claims — flagging anything that drifted.
Automated scan for contrast ratios, alt text, heading hierarchy, font sizes, table roles, and screen reader compatibility.
Every URL crawled and verified. Broken links, redirect chains, UTM consistency, and unsubscribe compliance — all checked.
See your email across Gmail, Outlook, Apple Mail, Yahoo, and Samsung — desktop, mobile, and dark mode.
Content-based spam scoring, image-to-text ratio analysis, blocklist checks, and authentication readiness.
Configure your brand profile with tone, terminology, and style rules. Every email scored against your voice — automatically.
Paste your email HTML and upload the source deck. Select your client and campaign version.
SendLint runs 50+ checks autonomously — copy, accessibility, links, brand rules, and more.
Review flagged issues with actionable guidance. Export the report as .docx and send with confidence.
| Feature | SendLint | Litmus | Email on Acid |
|---|---|---|---|
| Copy vs Deck Alignment | |||
| Brand Voice AI | |||
| Accessibility Checks | |||
| Link Validation | |||
| Rendering Preview | |||
| Spam Scoring | |||
| All-in-One Pass | |||
| .docx Report Export |
Join the beta and be first to lint your emails with autonomous, all-in-one QA.