Predictive text in Signal Desktop: private messages, typed faster
Yes, Lightkey works in Signal Desktop on Windows. As you type a message, Lightkey predicts your next words in grey right where you're typing. Press Tab to accept, or keep typing. It also suggests spelling corrections as you go.
How it works
Install the Lightkey desktop app and open Signal Desktop. Predictions appear in the message box of every chat, with nothing to set up in Signal.
What it helps you write in Signal
Private conversations still repeat. Lightkey learns the messages you send often, for example:
“Thanks, talk soon.”
“I'll call you after the meeting.”
“Can you send it here instead of by email?”
“Got it, see you tomorrow.”
Signal Desktop doesn't predict whole phrases by itself. Lightkey adds that without changing anything in Signal.
Private by design
Lightkey's prediction engine runs on your own computer. What you type isn't sent to a cloud service to get a prediction, and Lightkey keeps working offline. People choose Signal for privacy, and Lightkey's predictions don't send your messages anywhere either.
Get started
Download Lightkey and start your free 30-day trial.
Open Signal Desktop and start typing. Press Tab to accept a prediction.
Lightkey works in more than 80 languages and in virtually every app on your Windows PC. See all supported apps.
Frequently asked questions
Does Signal Desktop have predictive text?
Not built in. Lightkey adds predictive text and spelling suggestions to Signal Desktop on Windows.
Does Lightkey upload my Signal messages?
No. Lightkey's prediction engine runs on your computer, so your messages aren't sent to a cloud service to get predictions.
Do I need to change anything in Signal?
No. Lightkey works through its Windows desktop app, with no add-on or setting in Signal.
Does Lightkey work in other private messaging apps?
Yes, including Element, Telegram, WhatsApp and Proton Mail.
