Langflow
Visual builder for AI agents and workflows.
- Replaces
-
Paid AI agent builder services, such as Voiceflow.
All open-source alternatives to Voiceflow
- Difficulty
-
Difficulty: Medium
2 services (1 database or broker: postgres), 2 volume mounts, 1 env value to set, no elevated host access. Heuristic score 4 of 11: medium.
- Stack
Python (language), PostgreSQL (database)
- Deployment
docker_compose
- Requirements
Not stated.
- License
-
MIT(OSI-approved open source)Read from github.com/langflow-ai/langflow/blob/3ec974b/LICENSE
- Business model
-
Unknown
The README at the pinned commit does not state a business model, so it stays unknown.
Source: github.com/langflow-ai/langflow/blob/3ec974b/README.md, read on .
- Repository
GitHub stats
- Stars
- 155,912
- Forks
- 10,232
- Open issues and pull requests
- 1,191
- Last push
- 2026-10-22
- Latest release
- v1.12.7
- Released
- 2026-10-21
From the GitHub API on . These numbers are a snapshot, not live. GitHub detected the license as MIT.
Compose file
services:
langflow:
image: langflowai/langflow:latest # or another version tag on https://hub.docker.com/r/langflowai/langflow
pull_policy: always # set to 'always' when using 'latest' image
ports:
- "7860:7860"
depends_on:
- postgres
environment:
- LANGFLOW_DATABASE_URL=postgresql://langflow:langflow@postgres:5432/langflow
- LANGFLOW_SUPERUSER_PASSWORD=${LANGFLOW_SUPERUSER_PASSWORD:?set LANGFLOW_SUPERUSER_PASSWORD in .env}
# This variable defines where the logs, file storage, monitor data and secret keys are stored.
- LANGFLOW_CONFIG_DIR=/app/langflow
volumes:
- langflow-data:/app/langflow
postgres:
# Pinned to a specific Debian base (trixie) so the postgres:16 tag does not
# silently roll its OS underneath us — that roll causes a glibc collation
# version mismatch warning on existing volumes. Matches the langflow image
# base. See https://github.com/langflow-ai/langflow/issues/9608
image: postgres:16-trixie
environment:
POSTGRES_USER: langflow
POSTGRES_PASSWORD: langflow
POSTGRES_DB: langflow
ports:
- "5432:5432"
volumes:
- langflow-postgres:/var/lib/postgresql/data
volumes:
langflow-postgres:
langflow-data:
From the app's own repository: github.com/langflow-ai/langflow/blob/3ec974b/docker_example/docker-compose.yml.
Compose file from the app repository.
Install
- Docker with the Compose plugin (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/README.md)
A host with Docker and the Docker Compose plugin. This entry runs from a compose file.
- Save the compose file as docker-compose.yml (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/docker-compose.yml)
Use the compose file shown above.
- Save as .env next to the compose file (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/README.md#L26-L28)
LANGFLOW_SUPERUSER_PASSWORD=SUPERUSER_PASSWORD - What the compose file check ran with (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/README.md)
The compose file check ran together with a .env file copied unchanged from the code block in https://github.com/langflow-ai/langflow/blob/3ec974b7ee82d1c1ca630e68547edbde5c64a8a9/docker_example/README.md#L26-L28. The folder held only these files. The Docker example guide tells the reader to create a .env file with the admin password set, then run docker compose up.
- Start it (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/README.md)
docker compose up -d - Open the app (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/docker-compose.yml)
Open http://localhost:7860. The compose file publishes host port 7860 for the langflow service. The guide says Langflow is reachable at this address after docker compose up.
Compose file check: config_ok on 2026-10-22.
Gotchas and maintenance
Gotchas
- Some images use the latest tag or no tag. Images without a pinned version: langflow: langflowai/langflow:latest. A later pull can get a different version. (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/docker-compose.yml, checked 2026-10-22)
- The compose file publishes host ports. Host ports: 7860 (langflow), 5432 (postgres). A port without a host address listens on all host network interfaces. (github.com/langflow-ai/langflow/blob/3ec974b/docker_example/docker-compose.yml, checked 2026-10-22)
Signals
- Open issues and pull requests: 1191
- Last push: 2026-10-22 (0 days before this page was built)
- Latest release: v1.12.7 on 2026-10-21 (1 days before this page was built)