Works in every modern browser
The
Open
Trading
Terminal
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Pairlens is a free trading terminal that runs on your own machine. It reads your charts with you, arranges itself the way you think, and runs the Python you write against live candles.
It watches the market while you sleep, says something the moment a level breaks, docks the web beside your chart, and finds anything you can name in one keystroke.
Your keys never leave the machine. Fifty-one plugins, every one of them open.
One assistant, the whole terminal
It sits in a dock over every screen and sees what you are looking at. Ask it to mark a level, explain a candle, or execute inside the guardrails you set.
A desk you arrange
Drag panels into the layout you think in, pop them onto a second monitor, pick from 18 themes, and save the whole desk as a workspace.
Indicators and Bots in real Python
numpy, pandas and the pairlens.ta library, running against live candles. Export it as a plugin when ready, or run it 24/7 as a bot.
Workflows that watch for you
Deterministic strategies that fire on your conditions, even while you are away.
Alerts that never blink
Levels, fills, signals and closes, routed to toasts, OS notifications or webhooks.
The web, docked
Pin any site as a panel inside a workspace. Stop alt-tabbing mid-trade.
⌘K finds everything
Pairs, plugins, commands and settings, one keystroke from anywhere.
Keys stay in your keychain
Venue keys live in your OS keychain, or an encrypted vault in the browser, and never leave the machine.
51 sandboxed plugins
Venues, brains, assets and themes, each shipped with its source.
Opens in your browser, no account and nothing to install. Prefer an app? Take the desktop build. Read the source.
One terminal, every market: direct connections to 15+ exchanges, brokers & DEXs
Binance
OKX
Coinbase
Bybit
Kraken
KuCoin
Gate.io
Bitget
HTX
MEXC
Crypto.com
Bitfinex
Upbit
Alpaca
JupiterThree principles, auditable.
01
Private
Your keys never leave your device.
Local-only by design. Exchange keys and wallet secrets stay on your device, in the OS keychain on desktop or an encrypted vault in the browser, and nothing about your trades is uploaded anywhere.
02
Direct
Your orders go straight to the market.
Pairlens sends your orders straight from your machine to the exchange you chose. No relay in between means no commission on top, and nobody deciding what you are allowed to trade.
03
Yours
Free and open forever, guaranteed by our license.
There is no tier above the one you have. Every line is published, so you can read it, fork it, and keep running your own build for as long as you like. Our own licensing protects you from us ever changing our mind.
Don't take our word for it, read the repository.
Mix and match your terminal.
Batteries included for the most important pairs, markets and AI tools.
Pairs & tickers
Thousands
Spot and US equities, or whatever the venues you connect happen to list.
Intelligence
6 AI providers
Four AI providers (Claude, OpenAI, Groq, OpenRouter) out of the box, plus Exa and Tavily for agentic search. Bring your own keys.
Markets
21 venues
Fourteen exchanges, six chains and a US equities broker to get started.
Plugin store
Want a venue, model or feed that isn't here?
Find the plugin store inside the terminal. Open Plugins → Store to add markets, models, data providers and themes to your desk.
+Install and activate without a restart
+Read any plugin's source before you trust it
+Or build your own
Get Pairlens
Free forever.
Open it right now.
The terminal runs in your browser: nothing to install, nothing to sign up for. Prefer it on your desk? Take the desktop build, or clone the repository and build it yourself.