head to head · open source
marketingskills vs Observal
marketingskills has 58,064 GitHub stars, 8,533 forks, 154 open issues and last shipped 3 days ago. Observal has 4,537 stars, 1,141 forks, 201 open issues and last shipped yesterday. marketingskills leads on adoption by 1,180% (58,064 vs 4,537 stars). marketingskills is written in JavaScript under MIT; Observal is written in Python under Apache-2.0. marketingskills has attracted 15% as many forks as stars, Observal 25%. Observal was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (claude-code, codex, cursor), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| marketingskills | Observal | |
|---|---|---|
| GitHub stars | ★ 58K | ★ 4.5K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Python |
| Last push | 2026-10-31 | 2026-11-02 |
| Forks | ⑂ 8.5K | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick marketingskills if
- You weight community size — 58K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Observal if
- You want the Observal feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Observal fits your workflow better
About marketingskills
Marketing Skills for AI Agents A collection of AI agent skills focused on marketing tasks. Built for technical marketers and founders who want AI coding agents to help with conversion optimization, copywriting, SEO, analytics, and growth engineering. Works with Claude Code, OpenAI Codex, Cursor, Windsurf, and any agent that supports the Agent Skills spec. Built by Corey Haines. Need hands on help? Check out Conversion Factory — Corey's agency for conversion optimization, landing pages, and growth strategy. Want to learn more about marketing? Subscribe to Swipe Files. Want to get dangerously good at using AI for…
read the full marketingskills overview →
About Observal
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read the full Observal overview →
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Frequently asked questions
Is marketingskills or Observal more popular?
marketingskills has 58,064 GitHub stars and Observal has 4,537. marketingskills has the larger community by that measure.
Are marketingskills and Observal free?
Both are open source. marketingskills is licensed under MIT and Observal under Apache-2.0. Neither carries a licence fee.
What is the difference between marketingskills and Observal?
marketingskills is written in JavaScript and Observal in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, marketingskills or Observal?
Choose marketingskills if you want the larger community (58,064 stars) or its MIT licence terms. Choose Observal if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.