Stop Retyping the Same Text — Save Hours Every Week

The AI-powered text expander for Windows, Mac & Linux. Type an abbreviation, expand it into full emails, code, or templates — then enhance with AI or dictate by voice, all in any app.

SnippetsAI CommandsVoice Typing

14-day trial • All features included • No credit card required

Works in every app — save up to 10 hours/week on repetitive typing, across Windows, Mac & Linux

Snippets

Same expansion everywhere — pick where you type:

Below, each app has its own mini steps (type → trigger → filled).

Try it yourself: type the abbreviation “email” in To (the word alone). Press F1 or Ctrl+Enter — To fills first, then Subject, then the message. Or tap “Simulate full flow”.

Type “email” in To.

New message
After “email” is complete in To, press F1 or Ctrl+Enter to expand, or use the F1 button below.

Works the same in Outlook, Slack, VS Code, terminal, and anywhere you type.

Loved by Professionals

Real reviews from verified users on G2.

How Much Time Could You Save?

Adjust the sliders to match your workflow — see your savings update in real time.

Quick-fill by role:

Your Typing Habits

Repetitive tasks per day
580
Average time per task
15s2 min
Percentage of tasks you would automate
30%95%
Working days per week
17

Your Estimated Savings

54
min / day
4.5
hrs / week
19.5
hrs / month
29.3
workdays / year

Conservative estimate — actual savings are typically higher.

Built-In AI That Actually Helps

Select text and rewrite it. Hold a key and dictate. Run custom AI prompts with a hotkey. No browser tabs, no copy-pasting into ChatGPT.

AI Commands

Rewrite, summarize or fix any text with one hotkey — no switching to ChatGPT, no copy-pasting.

  • Custom hotkey triggers
  • Ready-to-use AI prompts
  • Real-time credit tracking
  • Built-in AI chat interface

Voice Typing (Push-to-Talk)

Hold a hotkey, speak, release — your words appear instantly wherever your cursor is. Works in every app.

  • Push-to-talk activation
  • Real-time transcription
  • Multiple transcription models
  • Instant text insertion on release

AI Enhance

Select any text, press a hotkey and get it rewritten, cleaned up or rephrased — without leaving what you're working on.

  • Grammar & style improvement
  • Context-aware enhancement
  • One-hotkey operation
  • Seamless text replacement

Works in Gmail, Slack, Zendesk, Terminal & Any App

Create snippets for Gmail, Slack, Zendesk, Outlook, Word, Notion — any app on your desktop. Type a keyword, press a hotkey, your response appears instantly.

Need it in the terminal too? Lightning Assist has dedicated terminal snippets for PowerShell, Bash, CMD, and more.

  • Easy to use
  • Runs fast
  • Highly stable
  • Highly secure
  • Works with many apps
  • Quick Access Window
  • Preview Snippet Window
  • Multi-Platform
    Windows logo Ubuntu logomacOS logo
View Compatibility List

Browse the community snippet library for ready-made examples you can import in one click. Explore community snippets

Lightning Assist advanced text expander engine interface

Stop Typing the Same Thing — Start Your Free Trial

14-day free trial, all features included. No credit card required. Cancel anytime.

14-day free trial • All features included • No credit card required

Available for Windows, Mac & Linux. No credit card required.

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