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Description
CodeSandbox aims to make it easier for you to express your ideas with code, and to validate them. It also removes the hassles of setting up development tooling and sharing your project. Join us to help build the future of web coding.
Over 4M developers use the platform each month. This includes organizations like Shopify and Atlassian. Since its launch, creators have created over 35M apps. It's used in thousands of open-source projects like React, Vue and Babel.
You can invite your friends, colleagues, or team to join you or simply view your creation by using a URL. Use any of 1M+ packages for building real, powerful applications quickly and efficiently. Import and run repos directly from GitHub or choose from hundreds of templates to start in seconds.
Boxy, CodeSandbox's AI-powered coding assistant, is now available to all Pro subscriptions.
Description
Proofline is a cloud-based service for code reviews that assesses GitHub pull requests by examining evidence from deployment environments. It analyzes various factors such as code paths, configurations, dependencies, permissions, resource limits, and deployment details to pinpoint potential production risks prior to merging. The findings provided by Proofline detail the mechanisms behind any failures and reference both code and environmental evidence. When evidence is missing, outdated, or unavailable, it is classified as an assessment gap rather than a confirmation that a modification is safe. Engineers can review assessments through the Proofline console, which allows them to connect coding agents to track review statuses or disseminate findings. The service supports a variety of platforms, including AWS, Google Cloud, Vercel, Cloudflare Workers, Kubernetes, Terraform, OpenTofu, Docker Compose, and Backstage. Additionally, Proofline features integration with GitHub Actions, a command-line interface (CLI), MCP access, an HTTP API, as well as SDKs for TypeScript and Python to facilitate the review process. Notably, infrastructure connections are maintained in a read-only mode; therefore, teams can selectively determine which repositories and environments to link and how to respond to identified findings. This structured approach ensures that potential risks are managed effectively while maintaining a clear line of communication among team members regarding code quality and safety.
API Access
Has API
Yes
API Access
Has API
Yes
Screenshots View All
No images available
Integrations
GitHub
Yes
Vercel
Yes
Astro
Yes
Backstage
No
Codex CLI
No
Deno
Yes
Docker
Yes
Elixir
Yes
Gemini CLI
No
GitHub Actions
No
Integrations
GitHub
Yes
Vercel
Yes
Astro
No
Backstage
Yes
Codex CLI
Yes
Deno
No
Docker
No
Elixir
No
Gemini CLI
Yes
GitHub Actions
Yes
Pricing Details
$12 per month
Free Trial
Yes
Free Version
Yes
Pricing Details
$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 Trial
Yes
Free Version
No
Deployment
Web-Based
Yes
On-Premises
Yes
iPhone App
Yes
iPad App
Yes
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
Yes
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
Yes
Linux
Yes
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
CodeSandbox
Founded
2017
Country
Netherlands
Website
codesandbox.io
Vendor Details
Company Name
Proofline
Founded
2026
Country
Germany
Website
proofline.sh/
Product Features
Code Collaboration
Audio Conferencing
Yes
Chat / Messaging
Yes
Code Review
Yes
Discussion Threads
Yes
IDE Integration
Yes
Remote Control
No
Remote Pair Programming
Yes
Screen Sharing
No
Video Conferencing
No
Code Editors
API
Yes
Auto-Complete
Yes
Code Folding
Yes
Column Editing
Yes
Customizable Themes
Yes
Debugging
Yes
Formatting / Table Editing
Yes
Keyboard Shortcuts
Yes
Multi-Monitor Editing
Yes
Syntax Highlighting
Yes
WYSIWYG
No
IDE
Code Completion
Yes
Compiler
Yes
Cross Platform Support
Yes
Debugger
Yes
Drag and Drop UI
No
Integrations and Plugins
Yes
Multi Language Support
Yes
Project Management
No
Text Editor / Code Editor
Yes