Licenses

Last updated October 3, 2026

The Ace terminal is our own software: its market data, the Ace indicators, the built-in studies, the Pine Script engine, drawings, alerts and layouts are built and run by ACE Indicators. Like most software it also stands on open-source components, listed below with their licenses.

Chart rendering

Candles and plots are drawn with Lightweight Charts™, an open-source charting library, used under the Apache License 2.0. Its license asks us to show this notice:

TradingView Lightweight Charts™
Copyright (с) 2025 TradingView, Inc. https://www.tradingview.com/

ACE Indicators isn't affiliated with, endorsed by or sponsored by TradingView, Inc. Pine Script® is a trademark of TradingView, Inc.; the terminal runs Pine Script indicators with its own engine.

Open-source components

• Lightweight Charts™ · Apache License 2.0
• React · MIT
• Next.js · MIT
• Drizzle ORM · Apache License 2.0
• Postgres.js · Unlicense
• Zod · MIT
• node-qrcode · MIT
• Nodemailer · MIT-0
• IBM Plex Mono, VT323 and Press Start 2P fonts · SIL Open Font License 1.1

The full license texts ship with each component. Write to us through the contact page for a copy of any of them.