email-spell-checker
The premium Open Source alternative to Mailgun
🎯 Best for:Web applications requiring high-conversion signup forms.
What is email-spell-checker?
Replaces expensive server-side validation APIs with a lightweight client-side TypeScript library. It utilizes a 1.9 KB footprint to detect common domain typos and suggest corrections in real-time.
Tech Stack
TypeScriptFrontend & Headless CMS
Why email-spell-checker?
- • Zero latency
- • Extremely small bundle size
- • No API keys required
Limitations
- • No SMTP verification
- • Limited to syntax/typos
- • Requires client-side JS
2/18/2026
Last Update
14
Forks
17
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to email-spell-checker instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Mailgun)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%