Star us on GitHub — 2.4k stars

Open source cloud cost analyzer for GCP, Azure & AWS

The only open-source tool built for complete cloud cost visibility. Self-host for free with Docker Compose. No vendor lock-in, no telemetry, no credit card.

2.4k

GitHub Stars

18k

Docker Pulls

47

Contributors

320+

Companies Using

app.c2a.dev/dashboard

Total Spend (Feb)

$30,730

+14.2% vs Jan

Active Anomalies

2

unacknowledged

Budgets at Risk

2 of 5

warning / critical

30-day spend trend — Compute · Storage · Networking · BigQuery

Features

Everything to control your cloud spend

Everything included. Free and open source. No paywalled features.

Cost Visibility & Breakdown

Drill down by service, resource, SKU, tag, region, or project. Multi-currency support with automatic USD conversion.

Anomaly Detection & Alerts

Threshold and spike-based alerts with severity classification. Get notified via email or webhook before your bill surprises you.

Forecasting & Trends

30/90-day spend projections with day-of-week weighting and confidence bands. Month-over-month and year-over-year comparisons.

Budgets & Governance

Set monthly budgets per project, service, or account. Warning and critical thresholds with automated alert dispatch.

Carbon & Commitments

Track CO2e emissions per service. Analyze CUD/SUD coverage and utilization to optimize committed use discounts.

Chargeback & Allocation

Allocate costs by label key for billing teams. Export chargeback reports as CSV. Compare projects side-by-side.

Resource-Level Drilldown

See costs at the individual resource level with full label support. Paginated views with service and date filtering.

Reports & Export

Save and reload report configurations. Export any view to CSV. Import cost data from CSV for any cloud provider.

Team Management

Invite team members with role-based access. Admin controls for user management. OAuth support for GitHub and Google.

Open Source Core

Apache 2.0 + Commons Clause. Self-host with Docker Compose. Your data never leaves your infrastructure. No telemetry.

Notifications & Digests

SMTP email alerts, webhook integrations, and automated weekly cost digest with MTD spend, anomalies, and budget status.

Security First

JWT auth with rate limiting, encrypted credential storage, CORS allowlist, non-root containers, and timing-attack-safe login.

Apache 2.0 + Commons Clause

Free, forever. Self-hosted.

Deploy with a single docker compose up. No vendor lock-in, no telemetry, no credit card.

View on GitHub
GCP BigQuery Billing Export
Cost dashboard & breakdown
Spend trend & forecasting
Rule-based anomaly detection
Budget tracking & alerts
Commitment (CUD/SUD) analysis
Carbon emissions tracking
Chargeback & cost allocation
Project comparison
Resource-level drilldown
CSV export & import
Email & webhook notifications
Weekly cost digest emails
Saved reports
OAuth (GitHub, Google) + email auth
Team management & roles
Encrypted credentials (Fernet)
Docker Compose single-command deploy
Unlimited users
Self-hosted — your data stays with you

Pricing

Free. Open Source. Forever.

Everything you need to analyze and control your cloud costs. Self-host with Docker Compose.

Community Edition
FreeSelf-hosted forever
  • GCP BigQuery billing export
  • Cost dashboard & breakdown
  • Spend forecasting & trends
  • Anomaly detection & alerts
  • Budget tracking & governance
  • CUD/SUD commitment analysis
  • Carbon emissions tracking
  • Chargeback & cost allocation
  • Project comparison
  • Resource-level drilldown
  • CSV export & import
  • Email & webhook alerts
  • Weekly cost digest
  • Saved reports
  • OAuth + email auth
  • Team management & roles
  • Encrypted credential storage
  • Docker Compose deploy
  • Unlimited users
  • Apache 2.0 + Commons Clause
Deploy Now
Enterprise & SaaS

Need more?

Looking for AI-powered insights, ML anomaly detection, managed hosting, SSO, SLA guarantees, or multi-cloud support for Azure & AWS? Our sales team can help.

  • AI NLP Q&A assistant
  • ML-based anomaly detection
  • Right-sizing recommendations
  • Azure & AWS support
  • SSO & advanced RBAC
  • Managed SaaS hosting
  • SLA & priority support
  • Custom integrations
Contact Sales