Run AWS, Azure, GCP, and OCI locally in milliseconds: the fast, credential-free loop your team and its AI agents need to ship faster.
Run AWS, Azure, GCP, and OCI locally in milliseconds: the fast, credential-free loop your team and its AI agents need to ship faster.
Cloud Emulators
Each emulator is a standalone MIT-licensed binary. No auth tokens, no feature gates, no cloud account needed.
floci
Drop-in replacement for LocalStack. Same port 4566, 119 services, native binary. Switch with zero code changes.
S3SQSLambdaDynamoDBRDSEKS+113 more
floci-az
Covers Blob, Queue, Table, Functions, App Config, Key Vault, Event Hubs and Service Bus. Native speed, MIT license, no Azure account needed.
BlobQueueTableFunctionsKey VaultEvent HubsService Bus+21 more
floci-gcp
Covers GCS, Pub/Sub, Firestore, Cloud Run, Cloud SQL, GKE and more. All 25 services on one port, native binary. MIT license, no GCP account needed.
GCSPub/SubFirestoreDatastoreSecret ManagerIAM+19 more
floci-oci
Covers Object Storage, Identity, Queue, Streaming, KMS, Vault and Functions. All 8 services on one port. MIT license, no Oracle Cloud account needed.
Object StorageQueueStreamingKMSVaultFunctions+2 more
Built for AI-assisted development
Coding agents write cloud code faster than ever, but they can't safely run it against a real account. Point them at Floci instead: a local cloud to build, run, and verify against. Instant, free, and credential-free.
0
Agents connect with throwaway keys. No real cloud secrets in the agent's context or sandbox. Nothing to exfiltrate, nothing to bill.
24ms
24 ms cold start, 13 MiB idle. Agents spin up, test, and tear down inside the edit loop instead of waiting on round-trips to a remote account.
real
Lambda, RDS, Redis, and Kafka run for real, so code an agent verifies locally behaves the same in production. No mock-shaped false positives.
✗
Let agents iterate aggressively. Worst case, they reset a local container, not your staging environment or your cloud bill.
Works with every SDK, CLI, Terraform/OpenTofu module, and test runner your agents already use, with no special integration.
Developer Tools
Manage and explore every Floci emulator from a unified CLI or visual dashboard.
Why Floci
No gatekeeping. No pricing tiers. No surprises. A local cloud that starts in milliseconds and works everywhere.
$0
Fork it, embed it, extend it. No "community edition" sunset, no enterprise feature flags. Every service is available to every developer, always.
✗
Pull the Docker image and go. No sign-ups, no API keys, no telemetry. LocalStack started requiring an auth token in March 2026. Floci never will.
24ms
Compiled with GraalVM Mandrel. Starts in 24ms, idles at 13 MiB, fast enough for inner-loop iteration. Your CI, your laptop, and your AI agents will all thank you.
real
Lambda runs in real Docker containers. RDS uses real PostgreSQL/MySQL. ElastiCache runs real Redis. 100% protocol fidelity, no surprises in production.
Use Cases
From the inner loop to CI to the classroom — anywhere a real cloud account is too slow, too risky, or too expensive.
CI
Spin up the full stack inside every pipeline job. 24 ms startup adds nothing to the build, each job gets an isolated cloud, and teardown is free.
λ
Build against S3, Pub/Sub, or Service Bus on your laptop — offline if you want. No shared dev account to trip over, no credentials to rotate.
tf
Apply Terraform, OpenTofu, or CloudFormation against localhost first. Catch typos, drift, and bad refactors before they ever touch a real account.
101
Teach cloud services with zero billing risk. Every student runs the whole stack on their own machine — no accounts to provision, nothing to clean up.
Quick Start
No account, no token. Pick your platform and go.
119 AWS services ready on :4566. S3 · SQS · DynamoDB · Lambda · RDS · +114 more