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GitHub stars
Open source startups →5,517 GitHub stars
- +7 days
- +19
- +30 days
- +74
- License
- AGPL-3.0
- Latest release
- v0.16.0 Oct 8, 2026
View repo ↗ Compare stars with Strapi Open source ranking →
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[](https://astracia.com/startups/117772/plunk)
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About the startup
Plunk is the open-source, affordable email platform for SaaS. Plunk makes it easy to integrate email capabilities into your own applications without the frustration of having to manage your own infrastructure. Plunk's generous free plan includes 3000 emails per month, after that they offer a pay-as-you-go plan so you only pay for the emails you actually send!
Alternatives to Plunk
Browse category →Reviewed matches are labeled. Other suggestions come from a shared subcategory, use case, source listing or the same category. Compare features and current plans before choosing.
| Product |
|---|
AutoSendEmail for Developers and Marketers |
IndiePitcherEverything email for your startup with markdown support |
AhasendTransactional Email with a Stripe-like CLI |
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Seenify - Email TrackerKnow when your emails are opened. Free and private. |
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Explore expertise in Marketing & Content
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SaaS ReportYouTube · 1K subscribers |
Edward SturmSEO, digital marketing, organic social media marketing, growth hacks, and founder stories. |
What a Story - The Video Partner for SaaS & AIWelcome to What a Story, your go-to partner for premium explainer videos and product demo videos specifically designed for SaaS, Tech and AI companies. |
Media about Marketing & Content
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Founder stories from Marketing & Content startups
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| Story |
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ConvertKit's $5,020 MRR in 2015 is not the 2020 ARR clockNathan Barry's March 2015 essay records ConvertKit at $5,020 monthly recurring revenue after 26 months and $55k invested; a later year-in-review he wrote for 2020 states ARR grew from $19.83 million to $25.85 million, a |
Justin Duke’s 2021 review peaked at $10,105 MRR, not a $392k yearJustin Duke’s 25 December 2021 year-in-review states Buttondown peaked at $10,105 MRR, ended the year south of that peak, and logged 23 million emails sent. He did not state $392,000 for the year in that post. The angle |
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Tim Soulo says bootstrapped Ahrefs crossed $100 million ARR without a sales team stackTim Soulo, Ahrefs' first marketer and later CMO, has said in his own LinkedIn words that bootstrapped Ahrefs crossed $100 million ARR, and in a Dreamdata interview he described expert content, YouTube from his first mont |
Browse Marketing & Content categories
See all →Subcategories in the same part of the directory, with the number of listed products.
| Category |
|---|
SEO & search visibility7,452 listed products |
Social media & influencer marketing1,526 listed products |
Writing & copywriting1,454 listed products |
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Advertising & campaign management578 listed products |
Reputation & review management485 listed products |
Conversion optimization444 listed products |
