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Fablo

Fablo is a CLI developer tool that generates and runs Hyperledger Fabric networks from configuration files using Docker. It supports configurable organizations and channels, several consensus protocols, chaincode installation and upgrades, and network snapshots.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Fablo — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Fablo when you need a repeatable, configurable Hyperledger Fabric network for local development, CI or topology experiments, rather than assembling the network manually.

Who it is for

  • Developers prototyping Hyperledger Fabric applications.
  • Teams using CI to create and manage Fabric networks.
  • Users experimenting with Fabric network topologies and consensus options.

Documented uses

  • Generate a Fabric network configuration from a topology file.
  • Start and manage a Docker-based network for development or CI.
  • Try different organizations, channels and consensus protocols.
  • Install or upgrade chaincode across supported languages.
  • Use a REST API client for certificate authorities and chaincodes through the separate Fablo REST component.
Before you choose

Requirements & limits

Fablo is open source under the Apache-2.0 license and distributed as a shell script. Its documented environment is Docker.

  • Network topology is described in a configuration file covering organizations, channels and chaincodes.
  • Consensus choices include RAFT, solo and BFT.
  • For Fablo-managed development, keep fablo-target intact and out of version control; generated files may contain local paths and cryptographic material.
  • For a version-controlled generated configuration workflow, the documentation says to use the generated fabric-docker.sh instead of the Fablo script.
  • Fablo REST is a separate client component, not the network generator itself.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Initialize and start a sample Fabric network

Create a local Hyperledger Fabric network with sample Node.js chaincode and Fablo REST enabled.

Before you start

  • Fablo installed as a shell script.
  • Docker environment.

Steps

  1. Run ./fablo init node rest in the project directory.

  2. Run ./fablo up to start the configured network.

Expected outcome

A local Fabric network is configured with sample Node.js chaincode and a REST API client enabled for each organization.

Guide limitations

  • The documented commands take a few minutes to set up the network.
  • The local fablo-target directory should be kept intact and out of version control for Fablo-managed development.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
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10 October 2026
Original website title
hyperledger-labs/fablo · Official homepage title · retained in its source language
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