Best Flems Alternatives in 2026
Updated
20 tools from coding playgrounds ranked against Flems on the same published basis.
- 1Flems vs Replit
- 2Flems vs Playcode
- 3Flems vs GitHub Codespaces
- 4Flems vs Coder
- 5Flems vs Deepnote
- 6Flems vs Datalore
- 7Flems vs Lightning AI Studios
- 8Flems vs JupyterLab
- 9Flems vs Daytona
- 10Flems vs Codeground AI
- 11Flems vs JDoodle
- 12Flems vs AWS Cloud9
- 13Flems vs CodePen
- 14Flems vs StackBlitz
- 15Flems vs Scratch
- 16Flems vs MATLAB Grader
- 17Flems vs Paperspace Gradient
- 18Flems vs PaizaCloud Cloud IDE
- 19Flems vs Firebase Studio
- 20Flems vs Google Cloud Workstations
Flems alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Replit | 9.5 | Free plan | $18/mo | Android, iOS, Linux, Mac, Web, Windows |
| 2 | Playcode | 9.3 | Free plan | $25/mo | Android, iOS, Linux, Mac, Web, Windows |
| 3 | GitHub Codespaces | 9.1 | Free plan | $0.07/mo | Android, API, Browser, iOS, Linux, Mac, Web, Windows |
| 4 | Coder | 8.9 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 5 | Deepnote | 8.9 | Free plan | $3,920/mo | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 6 | Datalore | 8.7 | Free plan | — | API, Linux, self-hosted, Web |
| 7 | Lightning AI Studios | 8.5 | Free plan | — | API, Web |
| 8 | JupyterLab | 8.4 | Free plan | Free | Linux, Mac, self-hosted, Web |
| 9 | Daytona | 8.4 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 10 | Codeground AI | 8.4 | Free plan | $9.99/mo | Linux, Mac, Web, Windows |
| 11 | JDoodle | 8.3 | Free plan | — | Android, API, Browser, iOS, Web |
| 12 | AWS Cloud9 | 8.2 | Free plan | Free | Linux, Web |
| 13 | CodePen | 8.2 | Free plan | $8/mo | API, Web |
| 14 | StackBlitz | 8.2 | Free plan | Free | API, self-hosted, Web |
| 15 | Scratch | 8.2 | Free plan | $2.92/mo | Android, Mac, Web, Windows |
| 16 | MATLAB Grader | 8.2 | Free plan | Free | Linux, Mac, Web, Windows |
| 17 | Paperspace Gradient | 8.2 | Free plan | $8/mo | API, Linux, Mac, Web, Windows |
| 18 | PaizaCloud Cloud IDE | 8.2 | Free plan | $9.80/mo | Android, iOS, Linux, Mac, Web, Windows |
| 19 | Firebase Studio | 8.1 | No | — | Android, Web |
| 20 | Google Cloud Workstations | 8.1 | No | $0.05/mo | API, Linux, Mac, Web, Windows |
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Questions about Flems alternatives
What is the best alternative to Flems?
Replit, number 1 in coding playgrounds with a score of 9.5 out of 10. The others here: Playcode, GitHub Codespaces, Coder and 16 more.
What is the best free alternative to Flems?
Replit is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.