# pentacent/keila

Open Source Newsletter Tool.

Repository: https://github.com/pentacent/keila
Canonical: https://ross.abutalabs.com/products/keila
Homepage: https://keila.io
Language: Elixir
License: AGPL-3.0
License Family: copyleft
Last push: 2026-08-18T23:14:50+00:00

## Health v2 (maintenance only)
Score: 91/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 78, longevity 100
- inputs: {"age_days": 2070, "days_push": 15, "days_rel": 68, "gap_med": 33.5, "n_releases_24m": 13}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2192, forks 167 (observed 2026-08-28T04:06:24.957319+00:00)

## What it is
Keila is an open source (AGPL-3.0) email newsletter tool written in Elixir, positioned as an alternative to Mailchimp or Sendinblue. It supports contact management, sign-up forms, contact segmentation with a JSON query language, multiple email editors (block/WYSIWYG, Markdown, MJML, plain text), optional privacy-friendly analytics, and sending via SMTP, AWS SES, Sendgrid, Mailgun, or Postmark.

## Use cases
- self-host a mailchimp alternative
- send email newsletters to my contact list
- create signup forms for a newsletter
- segment subscribers and send targeted campaigns
- send newsletters without tracking pixels
- manage mailing list contacts with custom fields
- send email campaigns via AWS SES or SMTP

## When to choose
- you want a fully open source, self-hosted newsletter platform with no vendor lock-in
- you need privacy-conscious analytics or the option to disable tracking entirely
- you want flexible email authoring: visual block editor, Markdown, MJML, or plain text
- you need contact segmentation with custom fields and a JSON query language
- you want to bring your own email delivery (SMTP, SES, Sendgrid, Mailgun, Postmark)

## When to avoid
- you need marketing automation, A/B testing, or transactional email workflows that are still on the roadmap
- you want a managed free tier - Keila Cloud is paid and self-hosting requires your own infrastructure
- you need advanced e-commerce or CRM features beyond newsletter campaigns
- you prefer a tool in a language/stack other than Elixir for customization

## Facets
- artifact type: application
- maturity: active
- function: email, templating, analytics, form-handling, self-hosted, api-framework
- domain: email, self-hosted, privacy, web-development
- platform: self-hosted, elixir
- tags: newsletter, mailchimp-alternative, email-campaigns, contact-management, signup-forms, mjml, markdown-editor, wysiwyg, email-analytics, segments, agpl, marketing, docker, web-server, linux

## Member repositories
- pentacent/keila (main) score 91

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:24.957319+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:47:26.957120+00:00, confidence not recorded.
  - readme: https://github.com/pentacent/keila (fetched 2026-08-28T04:06:24.957319+00:00, sha e1166391682c)
  - homepage: https://keila.io (fetched 2026-08-29T10:27:55.528323+00:00, sha b4f04b86a7eb)
  - site_page: https://www.keila.io/docs (fetched 2026-08-29T10:27:55.539710+00:00, sha 1c893e21aa64)
  - site_page: https://www.keila.io/docs/segments (fetched 2026-08-29T10:27:55.548314+00:00, sha 28230b877a8b)
  - site_page: https://www.keila.io/roadmap (fetched 2026-08-29T10:27:55.541412+00:00, sha 808fae3bfb0d)
  - site_page: https://www.keila.io/pricing (fetched 2026-08-29T10:27:55.543172+00:00, sha 39832a058ff4)
  - site_page: https://www.keila.io/segments-and-data (fetched 2026-08-29T10:27:55.537851+00:00, sha 75ff25fc02fa)
  - site_page: https://www.keila.io/email-editors (fetched 2026-08-29T10:27:55.544775+00:00, sha acb46beb6c51)
  - site_page: https://www.keila.io/analytics-and-privacy (fetched 2026-08-29T10:27:55.546568+00:00, sha 37fd8e617f0c)
  - site_page: https://app.keila.io/api (fetched 2026-08-29T10:27:55.549995+00:00, sha 0cbe4702ff61)
- Data as of 2026-08-30T08:39:29.467469+00:00.