Free Tools

DevOps Tools

Free calculators and estimators built from production experience. No signup. No data sent anywhere.

Kubernetes Resource Estimator

Production-calibrated CPU requests, memory limits, and HPA config — based on 8+ years managing K8s clusters at scale.

1510
CPU Request
—
millicores
CPU Limit
—
millicores
Memory Request
—
Mi
Memory Limit
—
Mi
HPA Settings
Min Replicas
—
Max Replicas
—
Target CPU%
—
Generated YAML
SLA Uptime Calculator
Translate an SLA percentage into real downtime allowance — per year, month, week, and day.
PeriodDowntime AllowedIn Minutes
Per Year——
Per Month——
Per Week——
Per Day——
Architecture Recommendation
Cost of Downtime Calculator
Estimate the revenue impact of an outage — and what SLA tier the incident corresponds to.
1%50%100%
Note
→ This calculates direct revenue loss only. Add 20–40% for indirect costs: engineering time, customer churn, SLA credits, and reputational damage.
Estimated Revenue Lost
—
USD
Per Minute
—
USD / min
Per Hour
—
USD / hr
SLA Impact
AWS Reserved Instance Savings Calculator
Enter your current On-Demand monthly spend and see how much you save by committing to Reserved Instances.
Discount Rates Used
→ 1yr No Upfront: ~30% off
→ 1yr Partial: ~36% off
→ 1yr All Upfront: ~40% off
→ 3yr No Upfront: ~50% off
→ 3yr Partial: ~55% off
→ 3yr All Upfront: ~62% off
Monthly with RI
—
USD / mo
Monthly Savings
—
USD / mo
Annual Savings
—
USD / yr
Total over Term
—
USD
All Options Compared
OptionDiscountMonthly CostAnnual Savings
More Tools
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Disaster Recovery
DRP Template Builder
Build a complete disaster recovery plan with RTO/RPO targets, Cold/Warm/Hot standby options, and runbook templates.
Coming Soon
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Terraform
Terraform Module Generator
Generate production-ready Terraform modules for VPC, EKS, RDS, and S3 with variables and outputs included.
Coming Soon
🔍
FinOps
AWS Hidden Cost Finder
Checklist and calculator to surface idle EC2s, unattached EBS volumes, orphaned snapshots, and NAT Gateway waste.
Coming Soon
🐳
Docker
Docker Image Size Estimator
Estimate final image size based on base image choice and installed packages — before you build.
Coming Soon