Floci
Light, fluffy, and always free
Floci is a fast, free, and open-source local AWS service emulator built for developers who need reliable AWS services in development and CI without cost, complexity, or vendor lock-in.
Supported Services
Floci emulates 51 AWS services. See the Services Overview for per-service operation counts, endpoints, and full protocol details.
| Service | Protocol |
|---|---|
| SSM Parameter Store | JSON 1.1 |
| SQS | Query / JSON |
| SNS | Query / JSON |
| SES | Query |
| SES v2 | REST JSON |
| S3 | REST XML |
| DynamoDB + Streams | JSON 1.1 |
| Lambda | REST JSON |
| API Gateway v1 & v2 | REST JSON |
| Cognito | JSON 1.1 |
| KMS | JSON 1.1 |
| Kinesis | JSON 1.1 |
| Secrets Manager | JSON 1.1 |
| CloudFormation | Query |
| Step Functions | JSON 1.1 |
| IAM | Query |
| STS | Query |
| ElastiCache (Redis / Valkey) | Query + RESP proxy |
| RDS (PostgreSQL / MySQL) | Query + wire proxy |
| MSK (Kafka / Redpanda) | REST JSON + Kafka |
| Athena | JSON 1.1 |
| Glue Data Catalog + Schema Registry | JSON 1.1 |
| Data Firehose | JSON 1.1 |
| ECS | JSON 1.1 |
| EC2 | EC2 Query |
| ACM | JSON 1.1 |
| ECR | JSON 1.1 + OCI Distribution |
| OpenSearch | REST JSON |
| EventBridge | JSON 1.1 |
| EventBridge Scheduler | REST JSON |
| CloudWatch Logs & Metrics | JSON 1.1 / Query |
| AppConfig + AppConfigData | REST JSON |
| Bedrock Runtime | REST JSON |
| EKS | REST JSON |
| ELB v2 | Query |
| Auto Scaling | Query |
| CodeBuild | JSON 1.1 |
| CodeDeploy | JSON 1.1 |
| AWS Backup | REST JSON |
| Route53 | REST XML |
| AWS Config | JSON 1.1 |
| Textract | JSON 1.1 |
| Pricing | JSON 1.1 |
| Cost Explorer | JSON 1.1 |
| Cost and Usage Reports | JSON 1.1 |
| BCM Data Exports | JSON 1.1 |
| Transfer Family | JSON 1.1 |
Why Floci?
No account required. No auth tokens, no sign-ups, no telemetry. Pull the image and start building.
No feature gates. Every feature is available to everyone — no community-edition restrictions.
No CI restrictions. Run in your CI pipeline with zero limitations. No credits, no quotas, no paid tiers.
Truly open source. MIT licensed. Fork it, extend it, embed it. No "community edition" sunset coming.
Quick Start
services:
floci:
image: floci/floci:latest
ports:
- "4566:4566"
volumes:
# Local directory bind mount (default)
- ./data:/app/data
# OR named volume (optional):
# - floci-data:/app/data
#volumes:
# floci-data:
All 51 AWS services are immediately available at http://localhost:4566.