Option A
Mailpit
Developer Tools
Email and SMTP testing tool for developers.
Mailpit is an OSS local SMTP server with a web UI for catching dev/staging emails. Built by a solo developer.
- Founded
- 2022
- Team
- 1-10
- Listing
- Free (nofollow)
- Listed
- May 2026
Compare
Mailpit vs Storybook
Side-by-side comparison of two indie startups from the Startup Spotlight directory.
Option B
Storybook
Developer Tools
The industry standard for UI components.
Storybook lets you build, test, and document UI components in isolation across React, Vue, Angular, and every other frontend framework.
- Founder
- Norbert de Langen
- Founded
- 2016
- Team
- 11-50
- Listing
- Free (nofollow)
- Listed
- May 2026