Side by side
BrowserCode vs Sphere Engine
Both stand on code playground software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Self-hostedWeb
BrowserCode brings a self-contained coding workspace and agent playground into the browser. Its sandbox restrictions and browser compatibility limits matter for projects needing native binaries, TCP, or Safari.
Visit BrowserCode Free trial APILinuxSelf-hosted+1
Sphere Engine covers code execution, automated assessment, and embedded teaching environments through separate modules. Its paid model and project-based pricing make the trial useful for evaluating fit before requesting an offer.
Visit Sphere EngineThe facts
| BrowserCode | Sphere Engine | |
|---|---|---|
| Free plan | Not published | A free trial |
| Open source | Not published | Not published |
| Runs on | Self-hosted, Web | API, Linux, Self-hosted, Web |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 2 |
| Maker | Not published | Not published |
| Website | browsercode.io | sphere-engine.com |
| On code playground software | #56 of 58 | #52 of 58 |
BrowserCode: what it does well
- Free and open source
- Runs tools in a browser WebAssembly sandbox
- Includes editor, terminals, and live previews
- Supports several web frameworks
- Offers portal previews and embedding
What to know first
- Native binaries are unsupported
- TCP networking is unavailable
- Safari is unsupported
- Claude Code and Codex CLI are beta
Sphere Engine: what it does well
- Supports over 80 programming languages
- Separate compiler, problem, and container modules
- REST API, webhooks, and widgets
- Cloud or on-premise deployment
- 14-day trial without credit card
What to know first
- No free plan
- Custom pricing requires a request
- Enterprise support is subscription-specific
Alternatives to BrowserCode Alternatives to Sphere Engine The whole list