Open-source Sigma alternatives

Apache Superset is a data exploration and visualization platform that runs as a web application. Analysts and business users can connect it to a database, build charts without code, assemble them into dashboards and share them, so it can augment or replace proprietary business intelligence tools for many teams.

The no-code chart builder sits next to a web-based SQL editor for advanced queries, and a lightweight semantic layer lets teams define reusable dimensions and metrics. Visualizations range from simple bar charts to geospatial views. Superset can query any SQL datastore or engine provided a matching Python database driver and SQLAlchemy dialect exist, including Presto, Trino and Athena. A configurable caching layer reduces database load, and security roles and authentication options are extensible.

The stack is Python with Flask on the back end and React on the front end, under the Apache-2.0 license. A REST API and extension framework allow programmatic control and customization. Documentation is split into guides for users, administrators and developers, and it is a typical choice for organizations that want a self-managed BI layer.

Metabase is an open-source business intelligence and embedded analytics tool meant for everyone in a company, not only analysts. People can ask questions about their data without knowing SQL, while an SQL editor is available for more complex queries. Written in Clojure, it connects to databases such as PostgreSQL and MySQL.

Its features include interactive dashboards with filters, auto-refresh and custom click behavior, plus documents for long-form analysis that colleagues can comment on. An AI assistant called Metabot helps answer questions and write queries, and you can build your own AI agent against your data. Data Studio supports transforming raw data into analytics-ready tables and defining canonical metrics. Alerts and scheduled dashboard subscriptions go to email, Slack or a webhook, and a Library plus Git integration help version your work.

Metabase can also be embedded in your own product with components for charts, dashboards, a data browser and AI chat, and granular permissions work for internal teams and embedded customers. You can self-host it or use Metabase Cloud, which the project says includes support, backups, upgrades and a free trial. The repository license is listed as 'Other', so review its terms.

Lightdash is an open-source business intelligence platform that it describes as agentic BI, meant for data teams that want analytics to be shipped like software. Metrics, joins, permissions, business logic and caching are defined once in a context layer, and that layer feeds MCP, SDKs, embedded analytics, data apps, AI agents and dashboards.

Analytics can be built as code: metrics, charts and dashboards live as files that you can edit with coding agents, preview from the Lightdash CLI, validate in CI and review in pull requests. Business users can pose questions in plain English, browse dashboards or build custom data apps, all while governance stays in place. Agents answer from the context layer rather than guessing from raw tables, respect permissions and return queries that can be inspected. The repository topics mention dbt.

Lightdash is written in TypeScript. The vendor recommends starting with Lightdash Cloud, which needs no infrastructure to run, and also offers a live demo, documentation and a sales call. The repository lists its licence as other, so check the terms before self-hosting.

Frappe Insights is an open-source business intelligence tool that aims to make data analysis and reporting accessible to both technical and non-technical users. It grew out of the experience of working with Frappe Framework applications, where building structured data was easy but extracting reports usually required SQL knowledge.

You can connect multiple sources, including databases, files and spreadsheets, and use a step-by-step query builder to select tables, add joins, apply filters and calculations without writing SQL. Results can be visualized with various charts, with the tool suggesting a fitting chart, and dashboards are assembled by drag and drop with dashboard filters. Supported databases include MySQL, PostgreSQL, DuckDB and BigQuery. A SQL editor is also available.

Insights is built on the Frappe Framework, Frappe UI with Vue, and the Ibis library for composing SQL with dataframe APIs. It is written in Python, licensed under AGPL-3.0, and can be self-hosted, with a live demo and documentation. It suits ERPNext and Frappe users as well as teams wanting a lightweight BI tool.

Briefer combines notebooks and dashboards in a single product, aimed at technical users who need the flexibility of code for analysis while making results easy for non-technical colleagues to view and interact with. It is described by its creators as similar to Notion, but built for code notebooks and dashboards rather than general documents.

Users can create notebooks and dashboards combining Markdown, Python, SQL and native visualizations, build interactive data apps with inputs, dropdowns and date pickers, generate code and queries with an AI that understands the connected database schema, schedule notebooks and dashboards to refresh periodically, and create write-back pipelines for testing changes against data. It also supports real-time multiplayer editing so multiple people can work on the same notebook or dashboard together.

The README states that Briefer has been acquired by Resend, with further updates referenced in the project's blog. It can be run locally by installing it with pip, which requires Docker, or used through a hosted cloud version; it is released under the AGPL-3.0 license and lists PostgreSQL among its supported data sources.