The Indicator Studio that runs in your browser

Write custom indicators in a concise formula language, backtest strategies, and scan whole markets — a WASM engine computes everything locally, no account or install required.

Core tools

  • Indicators

    Write custom indicators in a concise formula language — 40+ built-in functions on H/L/O/C/V price arrays, computed live in your browser.

  • Backtesting

    Backtest ENTRY/EXIT strategies on real market data with fees, slippage, and stops — equity curve, drawdown, and per-trade P&L included.

  • Scanner

    Walk-forward scan one strategy across a whole market universe — in-sample vs held-out out-of-sample performance, ranked with no lookahead bias.

Indicator Studio

The Studio brings the three tools into one workspace: a formula editor with autocomplete and hover docs, strategy backtesting, and market scanning — with your drafts, symbol, and interval restored on every visit.

Curated component rankings