A new online tool, IsThereTachanun.com, makes it quick and simple to know whether Tachanun is said on any given day, according to minhag Chabad.

The site gives a clear “Yes” or “No” for Shacharis, Mincha, and Shema Al Hamitah, along with relevant minhagim and notes. Users can also check another date in advance.

The tool can also be added to a phone like an app: open IsThereTachanun.com in your browser, tap the browser’s three-dot menu, and choose Save to Home Screen or Add to Home Screen.

The site includes a list of no-Tachanun dates, notes on dates where minhagim vary, and sources from Chabad.org and ShulchanAruchHaRav.com.

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