Free for most developers
Up to 1 million API requests per month. No credit card, no trial period, no strings attached.
Free
For hobby projects and prototyping
- 1,000,000 requests/month
- All 12 languages
- REST API + WebSocket
- Embeddable widget
- Community support
Pro
For production applications
- 10,000,000 requests/month
- All 12 languages
- REST API + WebSocket
- Embeddable widget
- Priority support
- Higher resource limits
Enterprise
Custom infrastructure & SLAs
- Unlimited requests
- Dedicated infrastructure
- Custom resource limits
- Custom language/runtime support
- SLA & uptime guarantee
- On-premise deployment option
Compare Plans
| Feature | Free | Pro | Enterprise |
|---|---|---|---|
| Monthly requests | 1M | 10M | Unlimited |
| Languages | 12 | 12 | 12 + Custom |
| REST API | |||
| WebSocket | |||
| Embeddable Widget | |||
| Memory limit | 512 MB | 1 GB | Custom |
| Timeout | 30s | 60s | Custom |
| Priority support | |||
| SLA | |||
| On-premise |
Frequently Asked Questions
Do I need a credit card to start?
No. The free tier requires no payment information. Just sign up and get your API key.
What happens if I exceed 1M requests?
Your API key will be rate-limited until the next billing cycle. Upgrade to Pro for 10M requests or contact us for custom limits.
Can I use it for commercial projects?
Yes. All plans, including Free, allow commercial use. Build coding education platforms, interview tools, documentation sites, or anything else.
Is the code execution secure?
Every execution runs in an isolated Docker container with no network access, strict memory/CPU limits, and a 30-second timeout. Containers are destroyed after each run.
Can I self-host?
Yes, with the Enterprise plan. We can help you deploy OnlineCompiler on your own infrastructure with custom configuration.