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Amazon Web Services

AWS Cloud Tools

130 free browser-based tools and 35 in-depth learning guides built specifically for AWS engineers. No sign-up required — every tool runs entirely in your browser.

Amazon Web Services powers millions of workloads worldwide, but managing AWS infrastructure means juggling ARN formats, IAM policy JSON, VPC CIDR math, and cost estimation across dozens of services. CloudToolStack gives you purpose-built utilities for every stage of the AWS engineering workflow — from initial architecture planning through production operations and cost optimization.

Our AWS tools cover iam & security, networking, compute, storage, serverless, monitoring — everything from parsing and building ARNs to estimating monthly spend for Lambda, S3, RDS, ECS/Fargate, and more. Each tool includes educational context explaining when and why you would use it, plus links to related learning guides that go deeper into AWS best practices.

Whether you are preparing for an AWS certification, architecting a new multi-account landing zone, debugging an IAM permission issue at 2 AM, or building a cost forecast for your next quarterly review, these tools help you work faster and with more confidence. All data stays in your browser — nothing is ever sent to our servers.

IAM & Security27
AWS ARN ParserAWS ARN BuilderIAM Policy FormatterIAM Policy MinifierIAM Policy ExplainerIAM Trust Policy BuilderSecurity Group Rule LinterAWS Resource Tag ValidatorAWS KMS Key Policy BuilderAWS WAF Rule BuilderSecrets Manager Cost EstimatorAWS S3 Bucket Policy BuilderAWS SNS Topic Policy BuilderAWS SQS Queue Policy BuilderAWS Systems Manager Parameter Path BuilderAWS IAM Permission Boundary BuilderSCP Policy BuilderResource Policy BuilderCognito User Pool BuilderAWS GuardDuty Filter BuilderAWS Macie Classification Job BuilderAWS Security Hub Insight BuilderAWS Inspector Exclusion BuilderAWS RAM Share BuilderAWS Organizations Tag Policy BuilderAWS SSO Permission Set BuilderAWS Shield Protection Builder
Networking19
VPC CIDR CalculatorSubnet PlannerCIDR Overlap CheckerRoute 53 Record BuilderNAT Gateway Cost EstimatorCloudFront Cache Behavior BuilderAWS CloudFront Function TesterAWS VPC Endpoint Policy BuilderTransit Gateway Route BuilderGlobal Accelerator Config BuilderNetwork Firewall Rule BuilderAWS ALB Listener Rule BuilderAWS NLB Target Group BuilderAWS PrivateLink Endpoint Service BuilderAWS Route 53 Health Check BuilderAWS Direct Connect VIF BuilderAWS VPC Flow Log BuilderAWS Cloud Map Service BuilderAWS App Mesh Virtual Service Builder
Compute18
EC2 Instance Match HelperDynamoDB Capacity CalculatorECS/Fargate Cost EstimatorAWS ECR Lifecycle Policy BuilderAWS ECS Task Definition BuilderAWS Glue Job Bookmark Config BuilderAWS CodeBuild Buildspec GeneratorEC2 Launch Template BuilderAuto Scaling Policy BuilderAWS Batch Job Definition BuilderAWS ECS Service Config BuilderAWS EKS Managed Node Group BuilderAWS Lightsail Instance BuilderAWS Lambda Layer Config BuilderAWS EC2 Placement Group BuilderAWS SageMaker Endpoint Config BuilderAWS EMR Cluster Config BuilderAWS Proton Service Template Builder
Storage21
S3 Lifecycle Rule BuilderS3 Cost EstimatorEBS IOPS CalculatorEFS Cost EstimatorRDS Instance Cost EstimatorRedshift Cost EstimatorAWS DynamoDB Query BuilderAWS Elasticache Redis Config GeneratorAWS Athena Query FormatterAWS Backup Plan BuilderFSx Cost EstimatorAurora Cost EstimatorOpenSearch Cost EstimatorAWS S3 Replication Rule BuilderAWS S3 Inventory Config BuilderAWS Glacier Vault Lock BuilderAWS ElastiCache Parameter Group BuilderAWS DocumentDB Cluster BuilderAWS Neptune Cluster BuilderAWS Timestream Table BuilderAWS Keyspaces Table Builder
Serverless22
Lambda Cost EstimatorStep Functions Cost EstimatorEventBridge Cron BuilderAWS SQS Cost EstimatorAPI Gateway Cost EstimatorKinesis Data Streams Cost EstimatorAWS Lambda Environment Variable EncryptorAWS AppSync Resolver BuilderAWS SES Email Template BuilderAWS Step Functions Workflow BuilderAWS EventBridge Rule BuilderSNS Filter Policy BuilderEventBridge Scheduler BuilderEventBridge Pipes Config BuilderAWS AppSync Schema BuilderAWS MQ Broker Config BuilderAWS IoT Core Rule BuilderAWS MediaConvert Job Template BuilderAWS SES Configuration Set BuilderAWS Pinpoint Segment BuilderAWS Connect Contact Flow BuilderAWS Transfer Family Server Builder
Monitoring23
CloudWatch Logs Query StarterAWS Config Rule ReferenceCloudFormation Template LinterAWS CloudWatch Alarm BuilderAWS CloudTrail Log Filter BuilderCloudWatch Dashboard BuilderX-Ray Sampling Rule BuilderAWS Config Custom Rule BuilderAWS CloudWatch Metric Filter BuilderAWS CloudWatch Composite Alarm BuilderAWS Config Conformance Pack BuilderAWS Health Event Rule BuilderAWS Trusted Advisor Check BuilderAWS Systems Manager Automation BuilderAWS Systems Manager Patch Baseline BuilderAWS Glue Crawler Config BuilderAWS Glue ETL Job BuilderAWS Lake Formation Permission BuilderAWS QuickSight Dataset BuilderAWS Data Pipeline Config BuilderAWS MSK Cluster Config BuilderAWS Kinesis Firehose Delivery BuilderAWS EMR Serverless Job Builder

AWS Guides

35
AWS IAM Best PracticesVPC Architecture PatternsS3 Storage Classes ExplainedLambda Performance TuningCloudFormation vs CDKWell-Architected FrameworkEC2 Instance Types ExplainedAWS Networking Deep DiveDynamoDB Data ModelingCost Optimization StrategiesRoute 53 DNS PatternsECS vs EKS Decision GuideSecurity Hub OverviewCloudWatch & Observability GuideSQS vs SNS vs EventBridgeAPI Gateway Complete GuideGetting Started: Your First AWS ProjectElastiCache: Redis vs MemcachedCI/CD with CodePipeline & CodeBuildCloudFront CDN GuideDisaster Recovery StrategiesAWS Bedrock: Building AI ApplicationsAWS Transit Gateway PatternsAWS Organizations & SCPsAWS RDS & Aurora Deep DiveAmazon OpenSearch Service GuideAWS Batch GuideAWS Network Firewall GuideAmazon Cognito GuideAWS Secrets Manager GuideAmazon GuardDuty GuideAWS Control Tower GuideEventBridge Patterns GuideAWS FSx GuideAWS Global Accelerator Guide
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