Best Crypto Screener: How to Choose One for Your Trading
There is no universally best screener: your coins, exchanges and style matter. Here are the selection criteria and a one-day test so you don't pay for what you won't use.

"Best" depends on how you trade
A scalper needs a check every minute and a liquidity filter. Someone holding a position for a day cares more about funding and open interest on longer windows. An investor is fine with a daily price alert. One screener cannot be the best for all three.
So start with your task, not a list of services. Answer three questions: which coins and exchanges you care about, which event you don't want to miss, and how many alerts a day you are willing to read.
The answers rule out half the options at once. If you trade futures on Bybit and Binance and a service only sees spot, you can stop there.
Six criteria that actually set screeners apart
- Data. Every tool has price. Open interest, funding, turnover relative to its usual level and technical indicators are another matter.
- Coverage. How many exchanges, spot or futures, how many pairs are actually checked.
- Your own condition. Can you set a threshold, window and filters, or only pick ready-made lists.
- Frequency and delay. How often data updates and how long an alert takes to arrive.
- Noise control. Repeats per coin, minimum turnover, excluding small and new coins.
- Delivery. Telegram, push, an app, a webhook — and whether it works when you are away from the computer.
Compare price last, and against what the plan includes. A cheap service without the data you need costs more than it seems.
How to test a screener in one day
1. Set one condition for your task, for example OI up 8% in 15 minutes.
2. Before switching on, see how many times it would have fired over recent hours.
3. Switch it on and check whether the alert arrives and how fast.
4. Open a couple of alerts and confirm the event on the chart.
In JustScreener these steps fit into the trial: the screeners check spot on 10 exchanges and perpetuals on 9, conditions are tested on history before switching on, and alerts arrive in Telegram, the browser or the app. Free options are on the free screener page.
Choose by testing on your coins. Sign up and run the test.
Related: Crypto Screener or Signal Channel: What Fits Your Task.
Check it on the live market
JustScreener screeners scan every pair on 10 exchanges every minute and send a push or Telegram alert when your conditions are met.
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