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Aleo Explorer

Aleo Explorer is an open-source Aleo blockchain explorer whose node fetches chain data from a peer and whose web interface presents that data.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Aleo Explorer — OpenViST project profile in Explorers & Analytics.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it to browse Aleo data or as the basis for a self-hosted explorer or separate frontend. Its peer-fetching node does not validate blocks.

Who it is for

  • People who want to browse Aleo blockchain data and history.
  • Operators building or running a self-hosted Aleo explorer service.
  • Developers connecting a separate frontend to the explorer's web API.

Documented uses

  • Browse Aleo chain data and history through an explorer interface.
  • Fetch Aleo blockchain data from a peer for an explorer backend.
  • Store explorer data in PostgreSQL on the mainnet-newdb branch.
  • Provide explorer data to a separate frontend through the web API.
Before you choose

Requirements & limits

The repository is public and describes the project as open source under AGPL-3.0-or-later. The README links an instance at aleoscan.io.

  • The mainnet-newdb branch uses PostgreSQL for all data storage and removes the Redis requirement.
  • The node fetches data from a peer but does not validate blocks; the README says to connect only to trusted peers.
  • Required software includes Python 3.10 or Python 3.11.4 or later, PostgreSQL 14 or later, Rust 1.81 or later, and aleo-explorer-rust.
  • Switching from the mainnet branch to mainnet-newdb requires syncing from scratch.
  • The current repository frontend is planned for deprecation; the README describes a separate frontend using the web API.

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

Set up Aleo Explorer from source

Prepare and launch the explorer using the mainnet-newdb branch instructions.

Before you start

  • Python 3.10 or Python 3.11.4 or later (Python 3.11.0–3.11.3 is unsupported).
  • PostgreSQL 14 or later.
  • Rust 1.81 or later.
  • The aleo-explorer-rust dependency.
  • Access to a trusted peer; the explorer node fetches blockchain data but does not validate blocks.

Steps

  1. Import the database schema from pg_dump.sql.

  2. Configure the application using .env, referring to .env.example.

  3. Install dependencies with the command below; this installs aleo-explorer-rust, while the Rust toolchain is still required. Alternatively, install requirements.txt and aleo-explorer-rust manually.

    Documented command
    uv sync

  4. Start the application with the command below, or use PYTHONPATH=src python -m main if it is not installed.

    Documented command
    uv run python -m main

Expected outcome

The explorer application is started with PostgreSQL-backed data storage; this branch stores almost full data history in the database and does not require Redis.

Guide limitations

  • The node does not validate blocks; connect only to peers you trust.
  • Switching from the mainnet branch requires a full resync.
  • The optional WASM compilation/install step for the old frontend is marked as not working in the README.
Documentation 1 ↗
COMPARE OPTIONS

Compare options for Blockchain exploration

These projects document a common task and share a project role. This is a source-based comparison, not an execution benchmark or a guarantee of interchangeability.

ProjectDocumented purposePlatformAccess and requirements
Aleo ExplorerBrowse Aleo chain data and history through an explorer interface.Docker, Self-hosted, Server, WebThe repository is public and describes the project as open source under AGPL-3.0-or-later. The README links an instance at aleoscan.io.
ChainlensExplore a supported blockchain network through a dashboard.Docker, Self-hosted, ServerThe free edition is described as free for non-commercial use and evaluation. Its deployment configuration supports Docker Compose or Kubernetes. Web3 Labs separately describes hosted plans; commercial-use inquiries are directed to the provider.
EthvmExplore Ethereum blockchain data through a client-side block explorer.Self-hosted, Server, Web
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
11 October 2026
Original website title
HarukaMa/aleo-explorer · Official homepage title · retained in its source language
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