Markets in motion
Professional market charting, free in your browser
Real-time crypto, US stocks, and ETFs. Screen markets, build indicators, and test ideas in one focused workstation.
No download or credit card. Open anonymously and sign in when you want to save your work.
Everything orbits your chart
One workspace pulls charts, scanners, scripting, and community ideas into a single gravitational center — built for traders who want depth without clutter.
Chart engine
Multi-pane candlesticks, Renko, Kagi, point & figure, volume profile, drawing tools, and 30+ built-in indicators.
Screeners & alerts
Scan stocks, ETFs, and crypto, then get notified when your conditions trigger — once, every bar, or on a schedule.
Candle Script
Author custom indicators and strategies in Candle Script, our clean-room DSL, backtest in the browser, and publish to the community.
Ideas & paper trading
Share trade setups, follow other traders, and practice entries and exits with simulated orders.
Live market snapshot
Featured symbols across equities and crypto — click through for full charts and context.
| Symbol | Last | Change |
|---|---|---|
| NASDAQ:AAPL | 332.80 | +0.01% |
| NASDAQ:MSFT | 513.35 | +0.01% |
| NASDAQ:NVDA | 229.10 | +0.01% |
| NASDAQ:TSLA | 354.55 | +0.00% |
| NYSE:JPM | 331.24 | -0.01% |
| CRYPTO:BTCUSD | 83,695.00 | +0.00% |
Candle Script — code your edge
Candle Script is CandleScript.io's proprietary clean-room charting language. Write indicators and strategies with paints, signals, multi-timeframe data, and backtests — not Pine Script.
- Run scripts on the chart or in the Script Lab with live preview
- Backtest strategies with equity curves, drawdown, and exposure metrics
- Publish scripts and share them with the community marketplace
Frequently asked questions
Clear answers for traders, developers, and search assistants.
- What is CandleScript.io?
- CandleScript.io is a free, web-based trading workstation with advanced multi-pane charts, market screeners, price alerts, paper trading, social trading ideas, and Candle Script — its custom language for building indicators and strategies. Current public market coverage includes stocks, ETFs, crypto, selected indices, and selected commodity futures.
- Do I need an account to use the charts?
- No. The chart workstation is usable anonymously. Sign in when you want to save chart layouts, watchlists, alerts, Candle Script scripts, and other personalized settings.
- Is Candle Script compatible with Pine Script?
- No. Candle Script is CandleScript.io's proprietary clean-room DSL for custom indicators and strategies. It includes paints, trade intents, multi-timeframe helpers, draw objects, and in-browser backtesting, but is not Pine Script compatible.
- Does CandleScript.io have an API?
- Yes. The developer portal documents REST and WebSocket APIs for symbols, quotes, historical bars, screeners, and user resources. API keys support scoped access and rate limits.
- Is CandleScript.io free?
- The core charting workstation, screeners, alerts, and Candle Script editor are free to use. Account registration is free and unlocks persistence, publishing, and personalization features.
Ready to chart your orbit?
Launch the workstation in your browser — no install, no credit card. Create a free account when you are ready to save your universe.