# kurrier-org/kurrier

Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.

Repository: https://github.com/kurrier-org/kurrier
Canonical: https://ross.abutalabs.com/products/kurrier
Homepage: https://www.kurrier.org
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: email, imap, mailgun, nextjs, nitrojs, postmark, sendgrid, ses, smtp, tailwindcss, webmail, caldav, carddav, calendar, contacts, s3, storage, webdav
Last push: 2026-09-02T14:47:41+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 100, release rhythm 88, longevity 26
- inputs: {"age_days": 364, "days_push": 0, "days_rel": 2, "gap_med": 0, "n_releases_24m": 102}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1039, forks 71 (observed 2026-09-03T02:15:14.227646+00:00)

## What it is
Kurrier is a self-hosted, open-source workspace that unifies email, calendars, contacts, and file storage into a single modern web interface. It connects to existing providers via open standards like IMAP/SMTP, CalDAV, CardDAV, WebDAV, and S3, keeping all data on your own infrastructure.

## Use cases
- self-host a private webmail client for my IMAP/SMTP accounts
- sync calendars across iOS, Android, and Thunderbird with CalDAV
- manage contacts with CardDAV sync on my own server
- replace Google Workspace with a self-hosted email and calendar suite
- add webmail to SES, SendGrid, Mailgun, or Postmark accounts
- store and access files via WebDAV or S3 in one workspace
- manage multiple email identities and domains in one interface
- provision email users programmatically via an admin API

## When to choose
- you want a private, self-hosted alternative to Gmail/Google Workspace
- you need a unified web UI over existing IMAP/SMTP, CalDAV, CardDAV, and WebDAV services
- you want no telemetry and full control of your mail and credentials
- you need multi-provider email identities with local search and filtering

## When to avoid
- you need a full mail server that receives mail directly rather than syncing via IMAP/SMTP
- you want a zero-configuration hosted solution without running your own server
- you require enterprise groupware features beyond email, calendar, contacts, and storage

## Facets
- artifact type: application
- maturity: active
- function: email, http-server, search-engine, file-upload, auth, self-hosted
- domain: email, self-hosted, developer-tools, web-development, privacy
- platform: self-hosted, cross-platform
- tags: webmail, caldav, carddav, webdav, s3, imap, smtp, calendar, contacts, nextjs, web-server, docker, nodejs

## Member repositories
- kurrier-org/kurrier (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:14.227646+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 2026-08-30T07:06:34.088435+00:00, confidence not recorded.
  - readme: https://github.com/kurrier-org/kurrier (fetched 2026-09-03T02:15:14.227646+00:00, sha dbc6df13fda6)
  - homepage: https://www.kurrier.org (fetched 2026-08-29T13:06:01.606890+00:00, sha e8ea587fa763)
  - site_page: https://www.kurrier.org/docs (fetched 2026-08-29T13:06:01.616229+00:00, sha 1934cd1b9384)
- Data as of 2026-08-30T08:39:29.467469+00:00.