Observable vs Pennant

Observable

8.3 #14 in Coding playgrounds

About Observable

Pennant

6.0 #103 in Coding playgrounds

About Pennant
ObservablePennant
Free planYesNo
Free trialNoNo
Paid from$2,225/mo—
Open sourceNoNo
Platformsself-hosted, Web—
Free planYes—
Private projectsYes—
Real-time collaboration—Yes
Full-stack runtime—No
Deployment options—none

Both are listed in Best Coding Playgrounds. On The Geeks Club, Observable scores higher on our published basis.