ChartOn
Financial charts that stay smooth with a million candles
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An open-source chart library for trading apps. Candles, heatmaps, order flow, indicators and drawing tools, rendered with WebGL2. Use the headless engine with your own UI, or add the ready-made toolbar and drawing rail. TypeScript, Apache-2.0.
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PH · launched Oct 20, 2026 · 4 upvotes (top 7%)
- Fintech
- Dev tools
- Developer
- Not AI
- Commercial product
- Open Source
- Fintech
- Developer Tools
- GitHub
Similar launches
See all 113 similar launches →Could you build this?
Partial Basic candlestick and indicator charts are vibe-codeable, but keeping a WebGL2 renderer smooth with millions of candles and heatmaps requires graphics and performance engineering that vibe coding alone does not provide.
What it would actually take: The architecture would be a WebGL2 rendering core with GPU buffers, level-of-detail and data-windowing so only visible candles are drawn, plus a headless engine layer and a TypeScript UI toolkit. The hard part is the rendering and performance work (batching, culling, precision issues, frame pacing), which needs a graphics or real-time rendering engineer who has profiled such systems in production.
Competitors
Other products that read as similar to this one : 113 launches clear the similarity bar, closest 8 shown.
Attention rank: #4 of 114 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 346 days after the earliest competitor.
- OpenKline · ph · 2026-10-10 · 1 upvotes · similarity 0.56
- trading_chart · github · 2026-10-06 · 132 upvotes · similarity 0.53
- OpenAlgo Charts · ph · 2026-09-18 · 62 upvotes · similarity 0.52
- CandleDraw · ph · 2026-09-22 · 1 upvotes · similarity 0.49
- Candlemind · ph · 2026-10-15 · 1 upvotes · similarity 0.48
- OwlChart · ph · 2026-10-06 · 1 upvotes · similarity 0.46
- ChartViz · ph · 2026-09-07 · 1 upvotes · similarity 0.46
- ChartGPU · hn · 2026-01-21 · 670 upvotes · similarity 0.44