head to head · open source
marketingskills vs ua-parser-js
marketingskills has 58,064 GitHub stars, 8,533 forks, 154 open issues and last shipped 3 days ago. ua-parser-js has 10,213 stars, 1,211 forks, 14 open issues and last shipped 1 months ago. marketingskills leads on adoption by 469% (58,064 vs 10,213 stars). marketingskills is written in JavaScript under MIT; ua-parser-js is written in JavaScript under AGPL-3.0. marketingskills has attracted 15% as many forks as stars, ua-parser-js 12%. marketingskills was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | ua-parser-js | |
|---|---|---|
| GitHub stars | ★ 58K | ★ 10K |
| License | MIT | AGPL-3.0 |
| Written in | JavaScript | JavaScript |
| Last push | 2026-10-31 | 2026-09-29 |
| Forks | ⑂ 8.5K | ⑂ 1.2K |
| 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 ua-parser-js if
- You want the ua-parser-js feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and ua-parser-js 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 ua-parser-js
UAParser.js Powerful User Agent detection in a compact, ES5 friendly, dependency free JavaScript library. ✅ Comprehensive detection : Identify various kind of browsers, OS, devices, bots, apps, AI crawlers, and more ✅ Battle tested at scale : Backed by an actively maintained, extensive detection database, trusted by leading tech companies ✅ Runs everywhere : Use seamlessly in browsers, Node.js, and modern JavaScript runtimes Demo Live demo: Documentation version 1.x : version 2.x : Before upgrading from v0.7 / v1.0 , please read CHANGELOG to see what's new & breaking. Package Options Open Source Editions PRO /…
read the full ua-parser-js overview →
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Frequently asked questions
Is marketingskills or ua-parser-js more popular?
marketingskills has 58,064 GitHub stars and ua-parser-js has 10,213. marketingskills has the larger community by that measure.
Are marketingskills and ua-parser-js free?
Both are open source. marketingskills is licensed under MIT and ua-parser-js under AGPL-3.0. Neither carries a licence fee.
What is the difference between marketingskills and ua-parser-js?
marketingskills is written in JavaScript and ua-parser-js in JavaScript. 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 ua-parser-js?
Choose marketingskills if you want the larger community (58,064 stars) or its MIT licence terms. Choose ua-parser-js if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.