Updated August 2026
    Crowded · 64/100

    Open Source Automation: 34 Projects Compared

    Every open-source automation project we track, scored on maintenance, momentum and licence — so you can tell the live competitors from the abandoned repositories.

    TL;DR • open source automation • as of August 2026

    Automation has 34 open-source implementations in this dataset, of which 15 show real momentum and 4 are dormant or abandoned. The leader is n8n with 201k stars against a category median of 2.9k — roughly 69x the typical project. Saturation score 64/100: Crowded. Free, maintained alternatives already dominate this category.

    34
    Implementations
    15
    Real momentum
    4
    Dormant or dead
    44%
    Maintained rate

    Should you build a automation product?

    Crowded · 64/100
    34 implementations · leader 69x the median

    Assume every prospect can find a free version in five minutes. Your wedge has to be something open source structurally cannot deliver: compliance, support SLAs, managed hosting at scale, or a workflow the maintainers refuse to build.

    The practical test in this category: n8n is the reference implementation at 201k stars, and 15 of 34 projects are still shipping. A buyer evaluating you will find at least one maintained free option, so your pricing and positioning have to answer "why not self-host n8n?" in the first minute.

    The projects that actually compete

    • n8n — replaces Zapier201k stars · 7889 commits/12mo
    • Huginn50k stars · 292 commits/12mo
    • Apache Airflow47k stars · 7846 commits/12mo
    • changedetection.io33k stars · 523 commits/12mo
    • Kestra — replaces Fivetran28k stars · 4222 commits/12mo

    All 34 open-source automation projects

    n8n

    Alternative to Zapier

    201k

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

    Actively maintained
    Real momentum
    Apache-2.0, Commons-Clause

    Kestra

    Alternative to Fivetran

    28k

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

    Actively maintained
    Real momentum
    Apache-2.0

    Activepieces

    Alternative to Zapier, Tray, Workflow automation

    24k

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

    Actively maintained
    Real momentum
    MIT

    Leon

    Alternative to Artificial intelligence chatbot/ LLM

    17k

    Personal assistant who can live on your server.

    Actively maintained
    Real momentum
    MIT

    Automatisch

    Alternative to Workflow automation

    14k

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

    Dormant
    AGPL-3.0

    StackStorm

    Automation

    6.5k

    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 wit

    Actively maintained
    Real momentum
    Apache-2.0

    pyLoad

    Automation

    3.8k

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

    Actively maintained
    Real momentum
    AGPL-3.0

    Dagu

    Automation

    3.8k

    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.

    Actively maintained
    Real momentum
    GPL-3.0

    Dittofeed

    Automation

    2.9k

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

    Slowing down
    MIT

    Fredy

    Automation

    1.4k

    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.

    Actively maintained
    Real momentum
    Apache-2.0

    µTask

    Automation

    1.4k

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

    Actively maintained
    BSD-3-Clause

    Cronmaster

    Automation

    1.3k

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

    Actively maintained
    AGPL-3.0

    ChiefOnboarding

    Automation

    921

    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.

    Actively maintained
    AGPL-3.0

    HandBrake Web

    Automation

    792

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

    Dormant
    AGPL-3.0

    Discount Bandit

    Automation

    727

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

    Actively maintained
    GPL-3.0

    Kibitzr

    Automation

    715

    Lightweight personal web assistant with powerful integrations.

    Slowing down
    MIT

    gocron

    Automation

    549

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

    Actively maintained
    Real momentum
    MIT

    LazyLibrarian

    Automation

    388

    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.

    Actively maintained
    GPL-3.0

    flowctl

    Automation

    329

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

    Actively maintained
    Apache-2.0

    BookBounty

    Automation

    289

    Retrieve missing Readarr books from Library Genesis.

    Slowing down
    MPL-2.0

    feedmixer

    Automation

    237

    Micro web service which takes a list of feed URLs and returns a new feed consisting of the most recent n entries from each given feed (returns Atom, RSS, or JSON).

    Dormant
    WTFPL

    HomeButler

    Automation

    184

    Homelab management tool for monitoring hosts, Docker services, Wake-on-LAN, inventory, and remote operations, with a web dashboard and MCP integrations.

    Slowing down
    MIT

    Mylar3

    Automation

    99

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

    Abandoned
    GPL-3.0

    Activepieces

    Alternative to Zapier

    Open source alternative to Zapier. Automate your work with 200+ apps.

    Not verified

    Ctfreak

    Automation

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

    Not verified
    ⊘ Proprietary

    CxReports

    Automation

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

    Not verified
    ⊘ Proprietary

    n8n

    Alternative to Zapier

    Fair-code workflow automation tool. Easily automate tasks across different services.

    Not verified

    How to compete when a free version already exists

    Why 'someone already built it' is the wrong conclusion

    Existence is not competition. A project competes with you only if it is maintained, findable, deployable by your buyer and licensed for their use. Most projects fail at least one of those tests. Run all four before you shelve an idea — or before you assume you have a clear run.

    • Maintained: commits in the last twelve months and a recent release.
    • Findable: your buyer can discover it without knowing the project name.
    • Deployable: the buyer's team can actually run it without a platform engineer.
    • Licensed: the licence permits the use your buyer needs.

    How stars mislead founders

    Stars are a lifetime counter with no decay, so a project abandoned in 2022 still looks like a leader in 2026. In this dataset 149 projects are dormant, abandoned or archived, and several of them sit in the top decile by stars. Sort by momentum and commit activity instead — popularity tells you the project was once interesting, maintenance tells you whether it will still be there when your customer needs a bug fixed.

    The self-hosting cost buyers forget to count

    When a prospect says 'we could just self-host the free one', they are usually comparing your price against zero. The real comparison is your price against hosting, upgrades, backups, security patching, integration work and the engineer hours behind all of it. Quantifying that number is the single most effective response to a free-alternative objection — and it is more persuasive coming with a spreadsheet than with a feature list.

    • Infrastructure: compute, storage, backups, monitoring.
    • Upgrades: breaking releases, migration work, dependency drift.
    • Security: patching, access control, audit trails, compliance evidence.
    • Opportunity cost: engineer time not spent on your buyer's actual product.

    Licences decide business models

    Founders treat licensing as a legal footnote and then discover it dictates strategy. Permissive licences allow closed commercial forks, which is why so many managed services exist around MIT and Apache projects — and also why your differentiation cannot be the code itself. Copyleft licences, especially AGPL, remove the closed-wrapper option entirely, which reduces competition but restricts you too. Source-available licences exist precisely to stop the wrapper business.

    Open source competition: common questions

    How do I know if my startup idea already exists as open source?

    Search this database by category and by the commercial product you would replace. It covers 1665 projects across 130 categories, each mapped to the paid tool it substitutes. If your category shows a "Crowded" verdict, a maintained free version almost certainly exists and your positioning has to account for it.

    Does an open-source alternative mean I should not build my product?

    No. It means free is your price anchor. Plenty of large companies were built next to a good open-source project — the ones that failed were the ones selling the same job at a price the free tool made indefensible. Find the part of the job the project deliberately does not do, and sell that.

    What does the saturation score mean?

    Each category gets a 0–100 score built from three inputs: how many implementations exist, what share of them are still actively maintained, and how far ahead the leading project is compared with the category median. 62+ is Crowded, 38–61 Contested, under 38 Open. 11 categories are Crowded and 88 are Open.

    How is 'real momentum' calculated?

    A project has momentum when it committed code in most of the last twelve months, shipped a release recently and is not archived. 736 of 1665 projects qualify. This is the single most useful filter here — it strips out the popular-but-dead repositories that make a category look more competitive than it is.

    Can I use an open-source project commercially?

    It depends entirely on the licence. MIT, Apache and BSD let you build and sell closed products on top. GPL and AGPL require derivative work to stay open, and AGPL extends that to network use, which blocks most SaaS wrappers. BSL, SSPL and Commons Clause are source-available, not open source, and usually restrict competing commercial use outright.

    Validate before you build in a crowded category

    IdeaProof scores your idea against real competitors, market size and 1,000+ documented startup failures in about two minutes.

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