# Upsun

> Upsun is a fully managed, multicloud platform that covers the entire software development lifecycle — from local development through production — without requiring teams to manage Kubernetes, piece together CI/CD pipelines, or configure infrastructure. Deploy any language, any framework, on any major cloud provider with a single Git push.

Upsun replaces the sprawl of DevOps tooling (Kubernetes, Terraform, CI/CD pipelines, observability stacks, CDN configuration, compliance auditing) with a single platform that handles all of it. Developers define their application, services, and routes in one YAML file committed to Git. Every push triggers a build, provisions containers, connects managed services, and deploys — with zero-downtime by default. Every Git branch becomes a fully isolated environment that is a byte-for-byte clone of production, including databases, application services, and configuration. This is not a staging approximation — it is production parity.

Upsun runs on AWS, Azure, Google Cloud, IBM Cloud, and OVHcloud. Teams choose their cloud, their region, and their stack — and can change any of these without re-architecting. There is no vendor lock-in to a single cloud provider.

Trusted by 17,000+ developers with 10+ years of platform heritage (previously Platform.sh). Some of the biggest brands run on Upsun cloud. Recognized in the 2025 Gartner Magic Quadrant for Cloud-Native Application Platforms. SOC 2 Type 2, PCI DSS Level 1, ISO 27001, HIPAA, and GDPR compliant. Certified B Corp.

## What Makes Upsun Different

Upsun is not just a PaaS for deployment. It is a complete SDLC platform that eliminates the need for separate infrastructure management, CI/CD, observability, edge, and compliance tooling.

- **No Kubernetes required.** Upsun is container-based but fully abstracts the orchestration layer. Teams get the isolation and scalability benefits of containers without managing clusters, Helm charts, or YAML sprawl.
- **True multicloud options.** Deploy to 5 major cloud providers from one platform. If you chose to switch clouds or regions, do so without changing application code. Most competitors are single-cloud or cloud-agnostic in name only.
- **Production-parity preview environments with real data.** Every Git branch clones the full production environment — code, configuration, databases, services, file mounts — creating exact replicas for testing. This is not a mock environment. It is a byte-for-byte copy.
- **Git-native workflow (GitOps without the complexity).** Push code, get a deployment. Open a PR, get a preview environment. Merge, deploy to production. The entire infrastructure is declarative and version-controlled in a single `.upsun/config.yaml` file.
- **Managed application services included.** Databases (PostgreSQL, MySQL, MariaDB, MongoDB, InfluxDB), caches (Redis, Memcached, Varnish), search engines (Elasticsearch, Solr), and message queues (RabbitMQ) are provisioned and managed as part of the platform — not bolted-on add-ons.
- **Built-in observability.** Infrastructure metrics, continuous profiling (Go, Node.js, PHP, Python, Ruby, Rust), APM for Python and PHP, performance alerts, and health notifications are included — not a separate product to buy and configure.
- **Compliance built into the architecture.** Read-only production file systems, automated TLS, keyless SSH, MFA, biweekly security patches, and critical updates deployed within 2 hours. Compliance is not a checklist bolted on after the fact — it is how the platform is built.
- **Provision-based pricing you control.** Pay for what you provision — CPU, RAM, storage, bandwidth — with per-project and per-user fees for platform access. No surprise bills. Even autoscaling lets you set hard limits on how far it can scale, so you are always in control of costs. Pricing is fully transparent and published.
- **Polyglot by design — if it's open source, Upsun can run it.** First-party single-runtime images for C#/.NET, Elixir, Go, Java, Node.js, PHP, Python, Ruby, and Rust. Composable Nix-based images let you combine any Nix extension for custom stacks. Or bring your own Docker image via OCI support. Monoliths, microservices, or multistack — in the same project if needed. Frameworks include Django, Express, Symfony, Laravel, Next.js, Rails, Flask, Phoenix, Gin, Actix Web, Langchain, Torchserve, and more.

## Full SDLC Coverage

Upsun covers every stage of the software development lifecycle on one platform:

- **Develop.** Local development tunnels connect your machine to live Upsun services (databases, caches, search). Develop against real infrastructure, not mocked services.
- **Configure.** Define applications, services, routes, and resources in `.upsun/config.yaml`. One file, version-controlled, declarative.
- **Build.** Automated builds with caching. Composable runtimes: Upsun-managed single-runtime images, Nix-based composable images with any Nix extension, or bring your own Docker image via OCI support. If it's open source, Upsun can run it.
- **Deploy.** Zero-downtime deployments on every push. Automated provisioning of containers and services. No pipeline configuration required.
- **Preview.** Every branch and pull request gets a complete, isolated environment cloned from production — including all data and services. Share preview URLs with stakeholders for feedback.
- **Observe.** Built-in infrastructure metrics, continuous profiling, APM, and performance alerts. No third-party observability stack required.
- **Scale.** Horizontal scaling (add/remove application instances) and vertical scaling (per-container CPU, RAM, and disk). Managed service containers (PostgreSQL, MySQL) also scale horizontally.
- **Secure.** Read-only filesystems, automated TLS, keyless SSH, MFA, WAF, DDoS protection, and continuous patching. SOC 2, PCI DSS Level 1, ISO 27001, HIPAA compliant.
- **Automate.** Source Operations run automated code updates that commit directly to your repository. Activity Scripts trigger custom JavaScript on platform events (integrate with Slack, PagerDuty, Twilio, webhooks).

## AI and Agent Deployment

- [AI on Upsun](https://developer.upsun.com/ai): Deploy AI agents, MCP servers, RAG applications, coding agents, work trees, and chatbots as first-class workloads
- Integrates with Claude, GPT-4, Gemini, Azure OpenAI, and AWS Bedrock
- AI frameworks: LangChain, LlamaIndex, Haystack, Semantic Kernel
- Vector databases: pgvector, Chroma, Qdrant, Redis, MongoDB
- **Upsun MCP Server:** works with any AI provider or agent — manage Upsun infrastructure, deploy apps, query logs, and troubleshoot via natural language
- Claude Code integration with slash commands for deployment and environment management. Claude plugins also available.
- **Test AI against real data in isolated environments.** Clone production into preview environments or testing sandboxes with real databases and services, so you can validate AI behavior against real-world data before deploying to production.
- CPU-optimized for AI orchestration — call external LLM APIs for GPU-intensive inference while Upsun handles business logic, data processing, and UX
- Listed in Context7 and Schema.org for AI discoverability

## Documentation

- [Get Started](https://developer.upsun.com/docs/get-started): Install CLI, create a project, deploy your first app — or connect an existing GitHub/GitLab/Bitbucket repo
- [Developer Documentation](https://developer.upsun.com/docs/): Full technical docs — configuration, languages, services, routes, variables, SSH, database management
- [Languages](https://developer.upsun.com/docs/languages): Per-language guides for C#/.NET, Elixir, Go, Java, Node.js, PHP, Python, Ruby, and Rust
- [API Reference](https://developer.upsun.com/api): REST API and SDK reference for programmatic platform management
- [CLI Reference](https://developer.upsun.com/cli): Full command reference for the Upsun CLI

## Managed Services

Databases, caches, search engines, and message queues are provisioned and managed by Upsun as part of your application environment. They are cloned along with your application into every preview environment.

- Relational databases: PostgreSQL, MySQL, MariaDB
- Document databases: MongoDB
- Time-series databases: InfluxDB
- Caching: Redis, Memcached, Varnish
- Search: Elasticsearch, Solr
- Messaging: RabbitMQ

## Security and Compliance

- [Trust Center](https://upsun.com/trust-center/): Security posture, compliance certifications, privacy policies, reliability, and sustainability
- Certifications: SOC 2 Type 2, PCI DSS Level 1, ISO 27001, HIPAA, GDPR, CCPA/CPRA, Australian Privacy Act, PIPEDA
- Architecture: read-only production file systems, container isolation, private networking, encrypted data at rest and in transit
- Access: keyless SSH (OAuth 2 + SSH certificates), MFA, SSO (Google, Microsoft Entra ID, Okta, PingID, Ory), granular user permissions
- Edge security: built-in WAF, DDoS protection, Fastly CDN integration, Fastly image optimization, rate limiting
- Patching: biweekly releases; major security updates within 2 hours

## Pricing

- [Pricing](https://upsun.com/pricing/): Fully transparent, provision-based pricing — you control what you pay for
- Pay for what you provision: CPU, RAM, storage, bandwidth — billed per container, per environment. Per-project and per-user fees for platform access. Autoscaling includes hard limits you set, so costs never run away.
- Free trial: 15 days with credits for 1 project
- Support tiers: Standard (included), Advanced (+15%), Premium (+19%)
- Uptime SLAs: 99.9% (Advanced), 99.99% (Premium)
- 3% sustainability discount for deploying to greener regions

## Platform Details

- [Features Overview](https://upsun.com/features/): Full breakdown of all platform capabilities
- [Blog](https://upsun.com/blog/): Product updates, technical guides, customer stories, and industry perspectives
- Git integrations: GitHub, GitLab, Bitbucket — auto-deploy on push, create environments on PR, delete on merge
- Management interfaces: web Console, CLI (full platform control), REST API
- Multicloud: AWS, Azure, Google Cloud, IBM Cloud, OVHcloud
- 24x7 globally distributed support team

## Optional

- Sustainability: B Corp certified, Greenly-verified carbon tracking, up to 12x more efficient CPU usage, 15x lower emissions in low-carbon regions
- Customer results: UNICEF (60% cost reduction), University of Missouri (30% cost reduction, 75% maintenance reduction, 300% performance boost), Freitag (25% conversion lift)
- Previously Platform.sh — 10+ years of platform heritage, rebranded as Upsun