The free text expander with voice and AI — Windows, Mac & Linux.
Snippets expand as you type — free, forever, in every desktop app. Go Pro for snippets that pop up while you write, AI rewrites of selected text, and voice dictation.
Free forever · No card · 14-day Pro trial included
Your whole library, one keystroke away
Start typing and matching snippets surface themselves. Write a phrase you send often and Lightning Recall offers the whole snippet - no trigger, no abbreviation - and inserts it right where you were typing.
- No abbreviation to remember. Type "Thank you so much" and the snippet you saved for it comes up. Lightning Recall matches your own words, not a code you have to memorise.
- Inserts where you already are. Email, docs, chat, terminals - it types into the field you came from, not into a separate window.
- Windows, macOS and Linux. A native desktop app, not a browser extension - and it works offline.
Text expansion and library search are free forever and run on your device, with up to 20 snippets on the free plan. Suggestions as you type and Lightning Recall come with the Pro plan. AI Commands and AI Enhance need no subscription — they use AI Credits.
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.
~72 seconds saved · ~240 keystrokesWhat you type never leaves your device
Lightning Assist turns your shortcuts into full messages in any app — and syncs your library across Windows, macOS, and Linux. Your keystrokes stay on your device — nothing you type is ever sent to us.
Expand in any app, sync across all your computers — while everything you type stays on your device.
- Expands instantly in any app
- Syncs across Windows, macOS & Linux
- Your keystrokes never leave your device
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 the content of every snippet is stored as ciphertext — a breach exposes scrambled text, not what you wrote.
Same expansion everywhere — pick where you type:
Below, each app has its own mini steps (type → expands → done).
Works the same in Outlook, Slack, VS Code, terminal, and anywhere you type.
Word-style documents — a short token becomes a full paragraph.
Works in Word, Google Docs, Pages, and other rich-text apps.
Chat — reply to someone in WhatsApp, Messenger, or Slack with a snippet.
Same flow in WhatsApp, Facebook Messenger, Slack, Teams chat, and more.
Editor or terminal — abbreviations become real code.
Works in VS Code, Cursor, JetBrains IDEs, terminal, and every editor.
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 across your desktop apps.
- 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


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

Explore the product
Popular guides and platform pages:
Stop Typing the Same Thing — Download Free
Text expansion is free forever — no card, no time limit. Your first 14 days include everything in Pro. Cancel anytime, keep everything you built.
14-day free trial • All features included • No credit card required
Refund on request within 14 days, prorated for time used.
Available for Windows, Mac & Linux. No credit card required.
Join the Community
Connect with other users, share your workflows, and shape the future of Lightning Assist.
Join Discord Community