Best Coding Playgrounds in 2026
Updated
In short: Replit is ranked #1 of 136 as of 7 October 2026, ahead of GitHub Codespaces and Playcode. The best-ranked option with a free plan is GitHub Codespaces. The lowest first paid tier on this page is GitHub Codespaces at $0.07/mo.
An online coding playground lets you work with code in an environment that may also support collaboration, sharing or deployment. Compare runtime languages and full-stack runtime to see what kinds of projects an environment accommodates. Deployment options, sharing controls and real-time collaboration matter when you want to publish or work with others; private projects and project limits help describe workspace choices. Check free-plan availability and paid-from pricing, too. Replit, GitHub Codespaces and Playcode are among the listed options. Weigh these features against the kind of coding work and project access you need.
136 coding playgrounds ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
25 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | ReplitWeb · Windows · Mac · Linux · Android · iPhone | Three bars | — | 6 of 6 | $18/mo | 8.4 | |
| 2 | GitHub CodespacesWeb · Windows · Mac · Linux · Android · iPhone · API · Extension | Three bars | — | 6 of 6 | $0.07/mo | 8.2 | |
| 3 | PlaycodeWeb · Windows · Mac · Linux · Android · iPhone | Three bars | — | 6 of 6 | $25/mo | 8.1 | |
| 4 | JupyterLabWeb · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 8.0 | |
| 5 | CoderWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 8.0 | |
| 6 | AWS Cloud9Web · Linux | Two bars | — | 2 of 6 | Free | 7.9 | |
| 7 | DataloreWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | Free | 7.9 | |
| 8 | DeepnoteWeb · Windows · Mac · Linux · Self-hosted · API · Extension | Three bars | — | 4 of 6 | $3,920/mo | 7.9 | |
| 9 | CodePenWeb · API | Two bars | — | 1 of 6 | $8/mo | 7.8 | |
| 10 | Google ColabWeb · API · Extension | Two bars | — | 1 of 6 | Free | 7.8 | |
| 11 | StackBlitzWeb · Self-hosted · API | Two bars | — | 1 of 6 | Free | 7.8 | |
| 12 | Kaggle NotebooksWeb · API | Two bars | — | 1 of 6 | Free | 7.7 | |
| 13 | ObservableWeb · Self-hosted | Two bars | — | 1 of 6 | $2,225/mo | 7.7 | |
| 14 | Val TownWeb · API | Two bars | — | 1 of 6 | $21/mo | 7.7 | |
| 15 | JDoodleWeb · Android · iPhone · API · Extension | Three bars | — | 3 of 6 | Free | 7.7 | |
| 16 | JSFiddleWeb · API | Two bars | — | 1 of 6 | €8/mo | 7.6 | |
| 17 | Lightning AI StudiosWeb · API | Two bars | — | 1 of 6 | Free | 7.6 | |
| 18 | Theia IDEWeb · Windows · Mac · Linux · Self-hosted · Extension | Three bars | — | 4 of 6 | Free | 7.6 | |
| 19 | ScratchWeb · Windows · Mac · Android | Three bars | — | 4 of 6 | $2.92/mo | 7.6 | |
| 20 | Arduino Cloud EditorWeb · Windows · Mac · Linux · Android | Three bars | — | 5 of 6 | $1.67/mo | 7.6 | |
| 21 | Anaconda NotebooksWeb | Two bars | — | 1 of 6 | $15/mo | 7.5 | |
| 22 | DaytonaWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 7.5 | |
| 23 | MATLAB GraderWeb · Windows · Mac · Linux | Three bars | — | 4 of 6 | Free | 7.5 | |
| 24 | Posit CloudWeb | Two bars | — | 1 of 6 | Free | 7.4 | |
| 25 | ZYVA Cloud IDEWindows · Mac · Linux | Three bars | — | 3 of 6 | $10/mo | 7.4 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Real-time collaboration | Private projects |
|---|---|---|---|---|---|---|---|---|
| 1 | Replit | 8.4 | Free plan | $18/mo | Yes | $18/mo | Yes | — |
| 2 | GitHub Codespaces | 8.2 | Free plan | $0.07/mo | Yes | — | — | — |
| 3 | Playcode | 8.1 | Free plan | $25/mo | Yes | $25/mo | — | Yes |
| 4 | JupyterLab | 8.0 | Free plan | Free | Yes | — | — | — |
| 5 | Coder | 8.0 | Free plan | Free | Yes | — | — | — |
| 6 | AWS Cloud9 | 7.9 | Free plan | Free | Yes | — | — | — |
| 7 | Datalore | 7.9 | Free plan | — | Yes | — | — | — |
| 8 | Deepnote | 7.9 | Free plan | $3,920/mo | Yes | — | — | — |
| 9 | CodePen | 7.8 | Free plan | $8/mo | Yes | — | — | Yes |
| 10 | Google Colab | 7.8 | Free plan | — | Yes | — | — | — |
| 11 | StackBlitz | 7.8 | Free plan | Free | Yes | — | — | — |
| 12 | Kaggle Notebooks | 7.7 | Free plan | Free | Yes | — | — | — |
| 13 | Observable | 7.7 | Free plan | $2,225/mo | Yes | — | — | Yes |
| 14 | Val Town | 7.7 | Free plan | $21/mo | Yes | $21/mo | — | — |
| 15 | JDoodle | 7.7 | Free plan | — | Yes | — | — | Yes |
| 16 | JSFiddle | 7.6 | Free plan | €8/mo | Yes | — | — | Yes |
| 17 | Lightning AI Studios | 7.6 | Free plan | — | Yes | — | Yes | Yes |
| 18 | Theia IDE | 7.6 | Free plan | Free | Yes | — | — | — |
| 19 | Scratch | 7.6 | Free plan | $2.92/mo | Yes | — | — | — |
| 20 | Arduino Cloud Editor | 7.6 | Free plan | $1.67/mo | Yes | — | Yes | Yes |
| 21 | Anaconda Notebooks | 7.5 | Free plan | $15/mo | Yes | — | — | — |
| 22 | Daytona | 7.5 | Free plan | Free | — | — | — | — |
| 23 | MATLAB Grader | 7.5 | Free plan | Free | Yes | — | — | — |
| 24 | Posit Cloud | 7.4 | Free plan | — | Yes | — | Yes | Yes |
| 25 | ZYVA Cloud IDE | 7.4 | Free plan | $10/mo | Yes | $10/mo | Yes | Yes |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which coding playground is ranked first on Freedom251?
Replit is ranked #1 of 136 with a score of 8.4. GitHub Codespaces is second and Playcode third.
How many of these have a free plan?
25 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, GitHub Codespaces has the lowest first paid tier we found: $0.07/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.