# piotrkulpinski/open-source-alternatives

Curated list of open source alternatives to proprietary software.

Repository: https://github.com/piotrkulpinski/open-source-alternatives
Canonical: https://ross.abutalabs.com/products/piotrkulpinski-open-source-alternatives
Homepage: https://openalternative.co
License: CC0-1.0
License Family: permissive
Topics: open-source, alternatives, foss, awesome, awesome-list, curated-list, free-software, open-source-alternatives, software-alternatives, openalternative
Last push: 2026-08-26T04:00:04+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 65
- inputs: {"age_days": 917, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6640, forks 319 (observed 2026-08-28T04:09:45.884871+00:00)

## What it is
A curated awesome list of open source alternatives to proprietary software, maintained by the OpenAlternative project. It catalogs FOSS replacements for popular commercial tools, backed by a companion directory website with health-score rankings.

## Use cases
- find open source alternatives to proprietary software
- discover free and self-hosted replacements for paid SaaS tools
- browse a curated list of FOSS software by category
- check how actively maintained an open source alternative is
- find open source alternatives to tools like Notion or Buffer

## When to choose
- you want a community-curated, regularly updated list of FOSS alternatives
- you need quick suggestions for replacing a proprietary tool with open source software
- you want rankings based on project health like stars, activity, and maintenance

## When to avoid
- you need an in-depth comparison of features or pricing between alternatives
- you are looking for a runnable software tool rather than a reference list
- you require exhaustive coverage of every niche open source project

## Facets
- artifact type: learning-resource
- maturity: active
- function: developer-tools, documentation
- domain: developer-tools, self-hosted, awesome-lists
- platform: -
- tags: awesome-list, curated-list, open-source-alternatives, foss, directory-site, web

## Member repositories
- piotrkulpinski/open-source-alternatives (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:45.884871+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 2026-08-29T17:43:12.144047+00:00, confidence not recorded.
  - readme: https://github.com/piotrkulpinski/open-source-alternatives (fetched 2026-08-28T04:09:45.884871+00:00, sha 50f892263968)
  - homepage: https://openalternative.co (fetched 2026-08-29T08:40:03.008562+00:00, sha 0b2e2e9e83ec)
  - site_page: https://openalternative.co/about (fetched 2026-08-29T08:40:03.013551+00:00, sha ee913c15f207)
  - site_page: https://openalternative.co/macro-docs (fetched 2026-08-29T08:40:03.016814+00:00, sha c8b574fab02b)
  - site_page: https://openalternative.co/alternatives/claude-code (fetched 2026-08-29T08:40:03.019738+00:00, sha 52c6bcaf4d86)
- Data as of 2026-08-30T08:39:29.467469+00:00.