Redash

Overview

Redash is an open-source (BSD-2) SQL query and dashboard tool that started around 2013 and continued as a community edition after Databricks acquired it in 2020. It sits between a query tool and a BI platform, where you write SQL, save it as a query, add visualisations, assemble dashboards, and share by link or embed.

Its positioning is pragmatic, prioritising making a query into a shareable dashboard over building the deepest visualisation stack. For US developers and small teams already comfortable with SQL, it costs less to adopt than a full BI platform and needs no per-chart data modelling.

The limits follow from that focus. Complex charts, row-level permissions, and mature governance feel thin for BI & Visualization work, and community-edition features follow volunteer cadence, with enterprise support and SLAs sourced elsewhere. It fits internal self-service queries and light dashboards rather than being a single analytics entry point.

Core Strengths

• Free to self-host under BSD-2 with no seat or query limits
• 30+ data sources including MySQL, PostgreSQL, BigQuery, and ClickHouse
• Queries save, accept parameters, and refresh on schedule so dashboards reuse one definition
• Built-in query alerts fire on conditions and push to email or webhooks

Product Ecosystem

Queries and visualisation

SQL is the core with charts built on results, plus parameters and scheduled refresh. Comment each query with its purpose, or it becomes impossible to tell which dashboards are still used.

Dashboards, alerts, and embedding

Dashboards combine multiple results and share by link, and alerts trigger on result conditions. Mind access control when embedding, since a public link exposes the data.

Drawbacks

• Visualisation trails mature BI platforms, with complex charts needing extension
• No row-level permissions or fine-grained governance, so multi-role isolation needs extra work
• Community-driven cadence with no clear roadmap guarantee or enterprise support
• Assumes SQL skills, blocking independent use by non-technical colleagues

Use Cases

• Small teams with SQL skills (★★★★☆) - Query to dashboard with minimal adoption cost
• Internal self-service and sharing (★★★★) - Parameterised queries and share links reuse work across a team
• Enterprises needing row-level security (★★) - Governance falls short against Metabase or Superset
• Self-service for non-technical staff (★★) - SQL dependency raises the barrier

Pricing

Software is free and cost sits in servers and operations. The project is community-maintained, so plan how upgrades and security patches arrive instead of assuming the iteration guarantees of a commercial product.

FAQ

• Is Redash still maintained? The community edition is maintained with volunteer-driven cadence. Confirm the target version, patch sources, and upgrade path before putting critical workloads on it, and consider commercial support if needed.

• Redash or Metabase? Redash for SQL-comfortable teams wanting light dashboards and alerts, Metabase for business self-service and fuller permissions. Both self-host for free, differing in usability and governance depth.

• Can it replace Grafana? They differ in purpose. Grafana targets time-series metrics and log observability, while Redash targets business dashboards over SQL results, so use the former for site monitoring and the latter for business data.