# Nextdoor/ndscheduler

A flexible python library for building your own cron-like system, with REST APIs and a Web UI.

Repository: https://github.com/Nextdoor/ndscheduler
Canonical: https://ross.abutalabs.com/products/ndscheduler
Language: Python
License: BSD-2-Clause
License Family: permissive
Last push: 2024-11-15T15:07:56+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4052, "days_push": 656, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1109, forks 192 (observed 2026-08-28T04:03:37.240345+00:00)

## What it is
ndscheduler is a flexible Python library for building your own cron-like job scheduling system. It runs a Tornado server that exposes REST APIs and a single-page web UI for managing, scheduling, and auditing jobs.

## Use cases
- replace cron with a centralized job scheduler
- schedule recurring jobs with a web UI
- build a custom cron-like system in Python
- manage scheduled jobs via REST APIs
- audit who ran which job and when
- pause and resume scheduled jobs from a dashboard

## When to choose
- you need a self-hosted cron replacement with a web dashboard
- you want programmatic control of scheduled jobs through REST APIs
- you need audit logs of job executions
- you want to embed scheduling into your own Python service

## When to avoid
- you just need simple cron on a single machine
- you need a distributed task queue like Celery with worker scaling
- you require Python 2/3 support on Windows
- you need a fully maintained project with frequent releases

## Facets
- artifact type: library
- maturity: maintenance
- function: scheduling, workflow-automation, http-server, api-framework, web-framework
- domain: developer-tools, backend, web-development, self-hosted
- platform: python, self-hosted
- tags: cron-replacement, job-scheduler, tornado, rest-api, web-ui, apscheduler, automation, linux, macos, docker, web-server

## Member repositories
- Nextdoor/ndscheduler (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:37.240345+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 2026-08-30T06:43:32.969138+00:00, confidence not recorded.
  - readme: https://github.com/Nextdoor/ndscheduler (fetched 2026-08-28T04:03:37.240345+00:00, sha 2c1cf153718e)
  - registry_pypi: https://pypi.org/pypi/ndscheduler/json (fetched 2026-08-29T12:47:18.682151+00:00, sha 419e5968ea2f)
- Data as of 2026-08-30T08:39:29.467469+00:00.