wellworn
40 tools · 1 category

Open-source alternatives to Zapier

Zapier connects apps and runs multi-step workflows between them. The list below is every catalog tool tagged Automation, which is the closest the catalog gets to the same job; none of them has been checked feature by feature against Zapier.

ToolStars

Free node based Workflow Automation Tool. Easily automate tasks across different services.

Apache-2.0, Commons-Clause · released 2026-09-07

203,671

Build agents that monitor and act on your behalf.

MIT · released 2026-08-27

49,921

Platform to programmatically author, schedule, and monitor workflows.

Apache-2.0 · released 2026-08-12

46,772

Stay up-to-date with web-site content changes.

Apache-2.0 · released 2026-09-04

33,699

Event-driven, language-agnostic platform to create, schedule, and monitor workflows. In code. Coordinate data pipelines and tasks such as ETL and ELT.

Apache-2.0 · released 2026-09-07

28,015

A fast, scalable, multi-language and extensible build system. Used by Google.

Apache-2.0 · released 2026-08-31

25,817

No-code business automation tool like Zapier or Tray. For example, you can send a Slack notification for each new Trello card.

MIT · released 2026-09-07

24,322

Another build automation system.

Apache-2.0 · released 2026-08-19

18,831

Personal assistant who can live on your server.

MIT · released 2026-02-19

17,496

Business automation tool that lets you connect different services like Twitter, Slack, and more to automate your business processes (alternative to Zapier).

AGPL-3.0 · released 2025-08-08

13,963

Developer-friendly API to interact with powerful tools like Chromium and LibreOffice for converting numerous document formats (HTML, Markdown, Word, Excel, etc.) into PDF files, and more.

MIT · released 2026-08-14

13,021

Listen for pings and sends alerts when pings are late.

BSD-3-Clause · released 2026-08-31

10,309

StackStorm (aka _IFTTT for Ops_) is event-driven automation for auto-remediation, security responses, troubleshooting, deployments, and more. Includes rules engine, workflow, 160 integration packs with 6000+ actions and ChatOps.

Apache-2.0 · released 2026-01-12

6,534

Simple, distributed task scheduler and runner with a web based UI.

MIT · released 2026-08-29

5,821

Build automation tool mainly for Java. A software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information.

Apache-2.0 · released 2026-07-30

5,343

Lightweight, customizable and remotely manageable downloader for 1-click-hosting sites like rapidshare.com or uploaded.to.

AGPL-3.0 · released 2026-01-01

3,864

Powerful Cron alternative with a Web UI. It allows you to define dependencies between commands as a Directed Acyclic Graph (DAG) in a declarative YAML format.

GPL-3.0 · released 2026-09-02

3,843

Web interface for running Linux shell commands.

AGPL-3.0 · released 2026-08-11

3,786

Omni-channel customer engagement and messaging automation platform (alternative to Braze, Customer.io, Iterable).

MIT · released 2026-03-28

2,926

Automated music mastering (alternative to LANDR, eMastered and MajorDecibel).

GPL-3.0 · released 2022-10-19

2,621

Build automation tool similar to Make, written in and extensible in Ruby.

MIT · released 2026-04-16

2,457

Searches for new apartments, houses, and flats in Germany on platforms like ImmoScout24, Immowelt, and others, and instantly delivers the results to you via Slack, Telegram, and more.

Apache-2.0 · released 2026-09-03

1,469

Automation engine that models and executes business processes declared in yaml.

BSD-3-Clause · released 2026-03-18

1,399

Cronjob management UI with human readable syntax, live logging and log history for your cronjobs.

AGPL-3.0 · released 2026-08-13

1,358

Employee onboarding platform that allows you to provision user accounts and create sequences with todo items, resources, text/email/Slack messages, and more! Available as a web portal and Slack bot.

AGPL-3.0 · released 2026-02-24

926

Use one or more instances of HandBrake video transcoder on a headless device via a web interface.

AGPL-3.0 · released 2025-12-10

796

Track pricing, stock status of products across multiple stores such as Amazon, Ebay, Walmart, etc.

GPL-3.0 · released 2026-05-23

739

Lightweight personal web assistant with powerful integrations.

MIT · released 2025-05-05

715

Task scheduler that allows users to specify recurring jobs via a simple YAML configuration file.

MIT · released 2026-08-28

549

Automation build tool, similar to make, a library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other.

Apache-2.0 · released unknown

471

Follow authors and grab metadata for all your digital reading needs. It uses a combination of Goodreads, Librarything and optionally GoogleBooks as sources for author info and book info.

GPL-3.0 · released unknown

390

Self-service workflow execution platform with approvals, remote execution and scheduling.

Apache-2.0 · released 2026-09-07

333

Retrieve missing Readarr books from Library Genesis.

MPL-2.0 · released 2026-08-21

291

Installs and manages a curated catalog of applications via Docker Compose, maps containers and exposed ports, verifies backups restore, and reports what changed since the last run with CLI, JSON, web and MCP interfaces.

MIT · released 2026-09-05

275

DMARC aggregate report parser with a built-in dashboard. Fetches reports over IMAP, stores them, and flags spoofing. Single Go binary with embedded Vue UI, SQLite storage, and Prometheus metrics (alternative to PowerDMARC, EasyDMARC, Dmarcian).

Apache-2.0 · released 2026-09-05

200

Automated Comic Book (cbr/cbz) downloader program for use with NZB and torrents.

GPL-3.0 · released 2026-08-17

111

Orchestration tool to run orchestration workflows or one-off tasks/scripts to automate the provisioning and management of nodes. Community fork of the last open source version of [Puppet Bolt](https://help.puppet.com/bolt/current/topics/bolt.htm).

Apache-2.0 · released 2026-06-11

32

IT task scheduler with mobile-friendly web UI to schedule concurrent, remote and chained execution of Bash / Powershell / SQL scripts, Webhooks, and more.

⊘ Proprietary · released unknown

n/a

Reporting and PDF document generation with a user-friendly WYSIWYG template editor, API, automated email delivery, and robust security features.

⊘ Proprietary · released unknown

n/a

The most popular automation build tool for many purposes, make is a tool which controls the generation of executables and other non-source files of a program from the program's source files.

GPL-3.0 · released unknown

n/a

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