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About

CodeSandbox is a cloud development platform that empowers development teams to code, collaborate, and ship projects of any size from any device in record time. Run your code in powerful microVMs and build anything without limits. We configure your environment for you and keep your code always ready, behind a URL. Boxy, the CodeSandbox AI coding assistant, is also now available to all Pro subscribers.

About

Proofline is a hosted code review service that evaluates GitHub pull requests against deployment-environment evidence. It checks code paths, configuration, dependencies, permissions, resource limits and deployment facts to identify production risks before merge. Findings explain failure mechanisms and cite code and environment evidence. Missing, stale or unavailable evidence is identified as an assessment gap, not treated as proof a change is safe. Engineers inspect reviews in the Proofline console and can connect coding agents to review status or share findings. Supported sources include AWS, Google Cloud, Vercel, Cloudflare Workers, Kubernetes, Terraform, OpenTofu, Docker Compose and Backstage. Proofline offers GitHub Actions integration, a CLI, MCP access, an HTTP API, and TypeScript and Python SDKs for requesting or inspecting reviews. Infrastructure connections are read-only; teams choose which repositories and environments to connect and how to address findings.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Supported
iPad Supported
Android Not Supported
Chromebook Supported

Platforms Supported

Windows Not Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers interested in a full-stack coding platform

Audience

Software engineers, platform engineering teams, DevOps and SRE teams, and engineering leaders reviewing code changes against production infrastructure.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$12 per month
Free Version Supported
Free Trial Supported

Pricing

$20/person/month
The Free plan includes 10,000 one-time organization credits, plus 5,000 credits when the first environment is ready; it has no subscription or recurring free credits. Basic is $20/person/month for 2,000 credits, and Ultra is $60/person/month for 6,000 credits. Prices are in USD plus tax. Monthly credits are per person, not pooled, and expire at month-end.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

CodeSandbox
Founded: 2017
Netherlands
codesandbox.io

Company Information

Proofline
Founded: 2026
Germany
proofline.sh/

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Categories

AI Code Generators Supported
AI Code Review Supported
AI Tools Supported
Code Collaboration Supported
Code Editors Supported
Code Review Supported
IDE Supported
Pair Programming Supported
Sandbox Supported

Categories

AI Code Review Supported
Code Review Supported

Code Collaboration Features

Audio Conferencing Supported
Chat / Messaging Supported
Code Review Supported
Discussion Threads Supported
IDE Integration Supported
Remote Control Not Supported
Remote Pair Programming Supported
Screen Sharing Not Supported
Video Conferencing Not Supported

Code Editors Features

API Supported
Auto-Complete Supported
Code Folding Supported
Column Editing Supported
Customizable Themes Supported
Debugging Supported
Formatting / Table Editing Supported
Keyboard Shortcuts Supported
Multi-Monitor Editing Supported
Syntax Highlighting Supported
WYSIWYG Not Supported

IDE Features

Code Completion Supported
Compiler Supported
Cross Platform Support Supported
Debugger Supported
Drag and Drop UI Not Supported
Integrations and Plugins Supported
Multi Language Support Supported
Project Management Not Supported
Text Editor / Code Editor Supported

Integrations

GitHub Supported
Vercel Supported
Astro Supported
Backstage Not Supported
Buildin.AI Supported
ChatGPT Supported
Cloudflare Workers Not Supported
Cursor Not Supported
Deno Supported
Elixir Supported
Gemini CLI Not Supported
Git Supported
GitHub Actions Not Supported
Go Supported
Java Supported
Kiro Not Supported
Next.js Supported
Rust Supported
Tailscale Supported
Vaiz Supported

Integrations

GitHub Supported
Vercel Supported
Astro Not Supported
Backstage Supported
Buildin.AI Not Supported
ChatGPT Not Supported
Cloudflare Workers Supported
Cursor Supported
Deno Not Supported
Elixir Not Supported
Gemini CLI Supported
Git Not Supported
GitHub Actions Supported
Go Not Supported
Java Not Supported
Kiro Supported
Next.js Not Supported
Rust Not Supported
Tailscale Not Supported
Vaiz Not Supported
Claim CodeSandbox and update features and information
Claim CodeSandbox and update features and information
Claim Proofline and update features and information
Claim Proofline and update features and information