E2B
E2B: Production-grade isolation, flexible controls, and SDK access for AI code execution. Ranked #1 of 25 in Sandbox Software by our editors (9.8/10); pricing: Free plan · paid from $150/mo; best for AI apps needing production-grade code sandboxes.
At a glance
- Editor score9.8 / 10
- PricingFree plan · paid from $150/mo
- Best forAI apps needing production-grade code sandboxes
- Free planYes
- Paid from$150/mo
- Isolation methodSnapshot
- Facts checked21 Sep 2026
Where it wins
- Firecracker microVM isolation with a dedicated kernel per sandbox
- Configurable outbound networking, persistent state, and session controls
- SDK, REST API, CLI, Dockerfile templates, and BYOC deployment
Where it doesn't
- Pro usage is billed by the second beyond the monthly plan
- Hobby sessions are limited to 1 hour and 20 concurrent sandboxes
- Advanced observability and signed webhooks are enterprise features
Our verdict on E2B
E2B provides isolated cloud sandboxes for AI agents, coding tools, data analysis, browser automation, and other workloads that run untrusted code. Each session uses a Firecracker microVM with its own kernel, filesystem, and memory boundary. Developers can execute commands and code, manage files, control outbound internet access, pause and resume sessions, and connect to existing sessions through SDKs, REST APIs, and a command-line tool. It supports web, Linux, API, and self-hosted deployments, with integrations for MCP servers, OpenAI, and Anthropic.
The published plans provide a clear progression. Hobby has no plan fee, includes a one-time usage credit, supports sessions up to 1 hour, allows 20 concurrent sandboxes, and does not require a credit card. Pro costs $150 per month, bills usage by the second, supports sessions up to 24 hours, includes 100 concurrent sandboxes expandable to 1,100, and adds custom sandbox CPU and RAM. Enterprise uses committed usage and custom billing, with multi-day and persistent sessions, tens of thousands of concurrent sandboxes, and BYOC deployment. E2B Embed supports infrastructure-controlled deployment, while BYOC is managed in the customer's cloud.
E2B's strongest fit is for teams that need more than basic process isolation: configurable networking, persistent storage, custom Dockerfile-based templates, and lifecycle controls suit AI applications that execute variable or untrusted workloads. Enterprise deployments add metrics, logs, and signed lifecycle webhooks. The trade-off is pricing complexity from separate plan fees and per-second sandbox usage, while Hobby has short sessions and limited concurrency. Choose E2B when isolation, programmable control, and deployment flexibility matter; choose an alternative when a simpler, fixed-cost sandbox is the priority.
E2B pricing
E2B fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $150/mo |
| Isolation method | Snapshot |
| Concurrent environments | 100 environments |
| Persistent storage | Yes |
| Network controls | Yes |
| API or CLI access | Yes |
| Deployment | Both |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Linux |
| Compliance & security | SOC 2, GDPR, HIPAA |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 3 integrations: MCP servers, OpenAI, Anthropic |
| Pricing | Free plan · paid from $150/mo (source) |
| Website | e2b.dev |
| Facts checked | 21 Sep 2026 |
E2B integrations
E2B lists 3 integrations on its own site.
- MCP servers
- OpenAI
- Anthropic
Alternatives to E2B
- microsandboxFlexible sandbox infrastructure for teams running high-volume isolated workloads.9.0
- Docker SandboxesA focused sandbox for running coding agents with isolation, policies, and persistent state.8.3
- DaytonaGPU-backed, self-hosted sandboxes with containers, VMs, and programmable access.7.5
E2B vs the competition
- E2B vs microsandbox
- E2B vs Docker Sandboxes
- E2B vs Daytona
- E2B vs Sandlock
- E2B vs Anthropic Sandbox Runtime
- E2B vs Context Agent Sandboxes
Compare E2B with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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