Confirmed:Self-hosted Docker image, or hosted Keila Cloud
Confirmed:Self-hosted on Vercel or any Node.js 22+ host
Confirmed:Self-hosted on a VPS or dedicated server; paid hosting also offered
Hosted by the vendor
Code licenceDiffers
Partial:AGPL-3.0-or-later (copyleft); logo and extra/ directory excluded
Partial:AGPL-3.0
Partial:GPL-3.0-or-later (copyleft)
—
Model weights licenceDiffers
Confirmed:No separate model weights
Confirmed:No bundled weights; AI agents connect through its MCP server
Confirmed:No separate model weights
—
Commercial useDiffers
Partial:Yes under AGPL-3.0 copyleft terms; self-hosted version is not feature-gated in the README
Partial:Yes, AGPL-3.0; you must share your source if you offer a modified version over a network
Partial:Yes under GPL-3.0 copyleft terms; no feature-gated edition
—
Paid services needed?Differs
Partial:Your own inbox over SMTP works for small lists; larger lists need a sending service
No:Needs Amazon SES or PostShiba for sending, both paid; MongoDB, QStash and hosting have free tiers
Partial:Software is free; you need an email transport such as SMTP, Amazon SES or SendGrid to send
Subscription
HardwareDiffers
Unknown:Not documented; needs a container engine and PostgreSQL
Unknown:Not checked yet
Partial:VPS or dedicated server; PHP 8.2+ (Mautic 7), MySQL 5.7+ or MariaDB 10.2+; no RAM figure given
—
Operating systemsDiffers
Partial:Any host running a container engine; host OS support not listed
Partial:Deployment requires Node.js 22+ hosting. No explicit Windows/macOS/Linux server support matrix was verified.
Partial:Server with Apache, Nginx or IIS, PHP and MySQL/MariaDB; host OS not specified
—
Setup effortDiffers
Confirmed:Medium; Docker image or sample Docker Compose file, plus PostgreSQL
Partial:Medium; deploy to Vercel or a Node.js host, then set up MongoDB, SES or PostShiba, QStash and DNS
Confirmed:Medium; install with Composer or the release zip and a web installer, plus a web server and database
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Stars over time
Switch to Growth % to compare projects of different sizes fairly.
Keila
Mailcheap
Mautic
Tracked daily since 16 Oct 2026. Dashed history: estimated from public records of when people starred the repo. Lines connect observations only; gaps contain no measured points.
Growth % starts at each project's first observed point in the shown range. Zero-star starts are unavailable.
Notes for a video or post
A plain summary with today's date and a link to the sources. Check each project page before you publish.
Want share images and a ready video description? Open a project's creator kit.
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