Exeria Charts
High-performance financial charting library for web apps.
Hey IndieHackers,
If anyone here is building a fintech app, a crypto portfolio tracker, or a trading dashboard, you know the struggle of adding financial charts.
The standard move is to embed a 3rd-party widget via an <iframe>. But once your users start needing high-frequency real-time tick data, the UI starts lagging. Plus, you have zero control over the rendering and are usually locked into expensive enterprise licenses.
We hit this wall while building our own platforms. Instead of settling, we spent months building a native Canvas/WebGL engine from scratch—and today, we’re fully open-sourcing the core of it.
It's called Exeria Charts (AGPL-3.0).
Why we built it differently:
No iframes – it lives directly in your DOM.
Performance – handles sub-millisecond tick streaming without blocking your UI thread.
Self-hosted – keeps your users' data completely private on your infrastructure.
We also included free data connectors (Binance, Bybit, Coinbase, etc.) so you can test it with real data immediately.
You can play with the live rendering here: https://exeria.dev/playground
GitHub Repo: https://github.com/efixdata/exeria-charts
I'd love to hear from other devs building data-heavy apps: How do you currently handle massive data visualizations without killing the browser's performance?
Happy to answer any questions about Canvas optimization, WebGL, or processing real-time websocket streams!
1 Comment
This is the kind of infra post that gets dev attention fast but still lacks real world adoption signals. open sourcing helps but it does not automatically create trust around performance claims in production.
Most teams will still wait for visible usage in actual trading dashboards before switching from iframe based setups. feels like a distribution and credibility gap more than a rendering problem.