Type less. AI text expander + voice for Windows, Mac & Linux.

Snippets expand as you type. Enhance text with AI Commands. Dictate everywhere with AI Speech.

Download Free

14-day trial · Free AI credits to start · No credit card

Works in every app

Snippets, AI Commands & Voice — all in one app

Expand text as you type, rewrite anything with AI, or dictate by voice — without ever leaving the app you're in.

Expand as you type~72 seconds saved · ~240 keystrokes

Learn more about Snippets

Private by design

We never record what you type

Lightning Assist turns your shortcuts into full messages in any app — and syncs your library across Windows, macOS, and Linux. Your keystrokes are never logged or sent to us.

Expand in any app, sync across all your computers — and never log a keystroke.

  • Expands instantly in any app
  • Syncs across Windows, macOS & Linux
  • Your keystrokes are never recorded
Encrypted in the cloud

Your snippet library, safe on every device

When your snippets sync, they're encrypted — stored as scrambled ciphertext, never plain text.

Encrypted in transit and at rest. In our database your snippets are stored as ciphertext — a breach exposes scrambled data, not your text.

Try it right here — no download, no account

Same expansion everywhere — pick where you type:

Below, each app has its own mini steps (type → expands → done).

Type ";email" in To — Lightning Assist recognizes it instantly and fills the fields automatically. Or tap "Simulate full flow".

Type ";email" in the To field (semicolon + abbreviation).

New message
Lightning Assist will expand ";email" automatically the moment you finish typing it.

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 Workflow

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

24
min / day
2
hrs / week
8.7
hrs / month
13
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 and it expands inline as you type — no hotkey needed in the default As-You-Type Mode.

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

Backed by a 14-day money-back guarantee.

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

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