Evidence - Business Intelligence as Code | WarmIndex

Evidence is an open-source framework for building fast, interactive data visualizations, dashboards, reports, and data products using SQL and Markdown.

🚀 Overview

Evidence is a modern, code-based alternative to traditional drag-and-drop business intelligence (BI) tools. It allows users to create polished, responsive data products like dashboards, reports, data apps, and embedded analytics directly in Markdown files with embedded SQL queries that render interactive visualizations.

The project solves the limitations of legacy BI tools, such as lack of version control, poor performance on large datasets, inflexible designs, and absence of developer workflows. By treating BI as code, Evidence enables rapid iteration, testing, and collaboration for data teams.

It's built for data analysts, developers, data scientists, and organizations—from small teams to enterprises—who want professional, publication-quality data outputs that scale to millions of records with sub-second interactions. Evidence brings dev practices like Git, AI assistance, and templating to data work, fostering a culture of ownership over spreadsheets and rigid dashboards.

✨ Key Features

Code-Based Development: Build in Markdown with SQL queries, loops, conditionals, and templating to generate dynamic pages and sites—no drag-and-drop required.
Interactive Visualizations: Publication-quality charts responsive on all devices, with sub-second interactions even on millions of records via optimized rendering.
Modern Dev Experience: Browser-based IDE (Evidence Studio), real-time validation, AI agent for debugging/schema/docs, version control, and autocomplete.
Performance & Scale: Evidence Query Engine with ClickHouse columnar storage, caching, auto-optimization; supports Snowflake, BigQuery, etc.
Optional: Enterprise features like RLS, SSO, SOC2; upcoming AI chat and embedded analytics.

🛠 Tech Stack

Frontend: Svelte, Tailwind CSS
Backend: Static site generation (SvelteKit), Evidence Query Engine (ClickHouse-based for cloud)
Database: DuckDB (local OSS), ClickHouse (cloud), PostgreSQL, Snowflake, BigQuery, etc.
Auth: Custom (OSS), Cloud: SSO (OIDC/SAML), SCIM, RLS
Hosting: Vercel, Netlify, Cloudflare, self-hosted; Evidence Cloud hosted

👥 Who Is This For?

This project is useful for:

Data analysts who want to code professional reports and escape spreadsheets
Developers building interactive data apps and embedded analytics
Teams and enterprises seeking scalable BI with dev workflows and enterprise security

📸 Screenshots / Demo

Live demo: https://evidence.dev/examples
GitHub: https://github.com/evidence-dev/evidence

🔥 Project Status

🟢 Actively building

Last updated: 2026-03-24

❓ FAQ

Is this project free?

Freemium / Paid / Open Source (Open-source core is free under MIT license for self-hosting. Evidence Cloud offers free Starter/Pro tiers and paid Enterprise plans starting ~$15/user/month or custom.)

Is the source code available?

Yes — https://github.com/evidence-dev/evidence

Can I contribute?

Yes—report bugs or request features by opening issues on GitHub, submit pull requests, or join the community Slack at https://slack.evidence.dev for discussions.