Text Expander for Gmail

Lightning Assist runs on your desktop so snippets work in Gmail in Chrome, Edge, or Firefox — and still work when you switch to Slack, VS Code, or terminal.

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Beyond a Gmail-only extension

Browser extensions help in the inbox alone. Lightning Assist gives you one snippet library for Gmail, LinkedIn, support tools, and native desktop apps.

Faster replies with fewer mistakes

Standardize introductions, pricing blurbs, and policy text. Optional AI commands rewrite or translate selected text in place before you send.

FAQ

Does it work in Gmail on Safari or Firefox?

Yes. Because Lightning Assist is a desktop app, it can expand text into whichever browser or desktop mail client is focused.

Do snippets sync between devices?

Your account keeps snippets available across your machines. Details are covered in our documentation and privacy policy.

Is there a free trial?

Yes — 14 days, all features, no credit card required.

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