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CodeSandbox

Instant Cloud Development Environments

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CodeSandbox is a cloud development platform for creating, running, and sharing isolated development environments called sandboxes. It addresses the need to execute code in secure, isolated VMs without affecting local systems, supporting use cases such as AI agents, code interpretation, parallel development environments, and CI/CD test runs.

The CodeSandbox SDK provides APIs for programmatically spinning up, cloning, and restoring sandboxes on microVM infrastructure, with snapshots for resuming work after inactivity and configurable hibernation. Other features include Sandpack for live coding in the browser, a Storybook Integration, a VS Code Extension, and templates for starting with common stacks. The platform supports running untrusted code in isolation, forking sandboxes for A/B testing agents, and running evals and tests inside sandboxes.

CodeSandbox is aimed at developers, teams, and organizations building AI agents, code playgrounds, and scalable development environments. It offers a free starting plan alongside paid options, with a trial available for evaluation.

12 alternatives to CodeSandbox

Ranked by how well each tool replaces CodeSandbox: shared features, audience, price and popularity.

  1. Scaleway

    European Cloud & AI provider (as described on the site)

    Covers 2 of 15 key features.

    69 out of 100 match—

  2. Sandstorm

    An open source platform for self-hosting web apps

    Covers 0 of 15 key features and is open source.

    Open source
    67 out of 100 match—

  3. Docker

    Secure sandboxes for AI agents.

    Covers 0 of 15 key features.

    Free plan
    63 out of 100 match$11/mo

  4. Ansible Collaborative

    From code to production with less friction on Kubernetes and OpenShift

    Covers 2 of 15 key features and is open source.

    Free planOpen source
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  5. Firebase

    A platform of services for building and running apps and games across iOS, Android, andWeb

    Covers 4 of 15 key features.

    Free plan
    61 out of 100 matchFree

  6. Coder

    Self-hosted development infrastructure for developers and AI coding agents, with policy

    Covers 3 of 15 key features and is open source.

    Free planOpen source
    60 out of 100 matchFree

  7. Signadot

    Lightweight Kubernetes sandboxes for every code change from developers or coding agents

    Covers 5 of 15 key features.

    Free plan
    60 out of 100 match$250/mo

  8. Microsoft Azure

    Cloud Computing Services | Microsoft Azure

    Covers 4 of 15 key features.

    Free plan
    60 out of 100 matchContact sales

  9. Paperspace

    Cloud GPU platform for developing, training, and deploying AI models

    Covers 7 of 15 key features.

    Free plan
    60 out of 100 match$8/mo

  10. Ubuntu

    Enterprise open source operating system published by Canonical

    Covers 3 of 15 key features and is open source.

    Free planOpen source
    59 out of 100 matchContact sales

  11. Linode (Akamai Connected Cloud)

    Build and deliver low-latency, edge native applications on Akamai Cloud

    Covers 1 of 15 key features.

    Free plan
    59 out of 100 matchUsage-based

  12. Modal

    Making cloud development work like magic

    Covers 4 of 15 key features.

    Free plan
    59 out of 100 match$250/mo