Best Free Data Visualization Software 2026: 8 Options Compared

Data visualization software covers three different jobs, and no single free tool does all of them well. For charts and maps that you embed in articles, Datawrapper is the specialist: its free plan lets you create, publish and embed charts, maps and tables without chart limits, exports PNG only and keeps Datawrapper attribution on. For dashboards over live data, Data Studio is no-cost, Power BI Desktop is free for authoring, and Metabase, Apache Superset and Evidence are open-source options you host. For exploration without writing code, Orange is a GPL-3.0 visual-workflow tool that combines data visualization and machine learning, and KNIME is a free and open-source low-code platform for data prep and modelling. Choose Datawrapper when the output is a picture for readers. Choose a dashboard tool when stakeholders need to filter and revisit the numbers. Choose Orange or KNIME when you are analysing a dataset yourself and want to see patterns first. The trade-off is polish versus flexibility: embeddable chart tools look good in minutes but follow their own design rules, while open-source dashboards give control and demand more setup and maintenance.

Datawrapper

Free plan lets you create, publish and embed charts, maps and tables without chart limits; PNG export only, attribution stays, 30-day edit history. Pro is $21 per user a month, term unconfirmed.

Price: Free (Free plan: create, publish and embed charts, maps and tables without chart limits; PNG export only, Datawrapper attribution stays, 30-day edit history); paid from $21 per user/month, Pro, excluding VAT; billing term not stated (Datawrapper pricing, checked 2026-10-23).

Platforms and license: Web. Proprietary SaaS.

Best for: Charts and maps for articles and reports.

Data Studio (formerly Looker Studio)

Google's base product is no-cost; Data Studio Pro is the paid tier. Good with Google Sheets and Ads data, and the Pro price is not given on the docs page.

Price: Free (Base product is no-cost; Data Studio Pro is the paid tier) (Data Studio (formerly Looker Studio) pricing, checked 2026-10-22).

Platforms and license: Web. Proprietary.

Best for: Shareable dashboards over Google data.

Power BI

Free account and free Power BI Desktop for authoring; sharing reports needs Pro at $14 per user a month billed yearly. Windows-focused.

Price: Free (Free account and free Power BI Desktop for authoring; sharing reports needs Pro or Premium Per User); paid from $14 per user/month, billed yearly (Pro) (Power BI pricing, checked 2026-10-22).

Platforms and license: Web, Windows (Desktop). Proprietary.

Best for: Individual analysts on Microsoft tools.

Worth knowing: Premium Per User is $24 per user per month billed yearly; the Premium Per User add-on is $14 for existing Pro or E5 holders.

Compare: Power BI alternatives

Metabase

AGPL open-source edition, free to self-host with unlimited users. Simple question builder, but you run and secure the server.

Price: Free (Open source edition is free to self-host with unlimited users); paid from $90 per month, Starter cloud billed yearly, first 5 users included (Metabase pricing, checked 2026-10-22).

Platforms and license: Web, Self-hosted. AGPL (core) with commercial enterprise directory (open source).

Project activity: 49.9k GitHub stars · latest release v0.64.3 (Oct 27, 2026) · last commit Oct 28, 2026

Best for: Self-hosted dashboards for non-technical users.

Worth knowing: Starter cloud is $100 per month billed monthly; extra users $6 per month. Pro cloud starts at $517.50 per month billed yearly.

Compare: Metabase alternatives

Apache Superset

Apache-2.0, free except hosting. Wide chart library and SQL access to databases with Python drivers, at the cost of a steeper setup.

Price: Free (Free open source software; you pay for your own hosting) (Apache Superset pricing, checked 2026-10-22).

Platforms and license: Web, Self-hosted. Apache-2.0 (open source).

Project activity: 75.3k GitHub stars · latest release 6.1.0 (May 13, 2026) · last commit Oct 27, 2026

Best for: Rich chart types over SQL databases.

Worth knowing: Queries any SQL database with a Python DB-API driver and SQLAlchemy dialect, including Snowflake, BigQuery, Redshift, ClickHouse and SQL Server.

Evidence

MIT framework where reports are Markdown and SQL. Cloud has a 30-day trial, so the free route is self-hosting.

Price: Free (open-source framework for building BI as code; Evidence Cloud has a 30-day trial and no free tier); paid from $2500 per month (Cloud Team, unlimited users) (Evidence pricing, checked 2026-10-23).

Platforms and license: Web, Self-hosted. MIT (open source).

Project activity: 7.1k GitHub stars · latest release @evidence-dev/evidence@40.1.8 (Feb 6, 2026) · last commit Oct 26, 2026

Best for: Analysts who want reports as code.

Orange

GPL-3.0-or-later and free; donations requested. Widget-based visual workflows for data visualization and machine learning, no coding required.

Price: Free (Free and open source; donations requested) (Orange pricing, checked 2026-10-22).

Platforms and license: Windows, macOS, Linux. GPL-3.0 or later (open source).

Project activity: 5.7k GitHub stars · latest release 3.40.0 (Dec 20, 2025) · last commit Oct 26, 2026

Best for: Exploring a dataset visually without code.

Worth knowing: Widget-based visual workflows for data visualization and machine learning, no coding required.

KNIME Analytics Platform

Analytics Platform is free and open source per KNIME; Business Hub is a separate paid product. Low-code workflows for data prep, blending and modelling.

Price: Free (Analytics Platform is free and open source; Business Hub is a separate paid product) (KNIME Analytics Platform pricing, checked 2026-10-22).

Platforms and license: Windows, macOS, Linux. Free and open source (per KNIME) (open source).

Best for: Repeatable data-prep and analysis flows.

Which one to pick

• You need a chart for a news article: Datawrapper
• You report on Google Sheets data: Data Studio (formerly Looker Studio)
• You explore a dataset with no code: Orange
• You want to host dashboards yourself: Metabase