# AI Grammer Checking by SpellFast

> SpellFast AI is a browser extension that uses AI to help you write error-free text on any website.

Canonical page: [https://chrome-stats.com/d/spellfast-ai](https://chrome-stats.com/d/spellfast-ai)

## Overview

- **ID:** `spellfast-ai`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** SpellFast AI Founder
- **Category:** social-communication
- **Daily users:** 31
- **Weekly downloads:** 5
- **Rating:** 3.00 / 5 (2 ratings)
- **Version:** 1.0.6
- **Last updated:** 2025-04-04
- **First published:** 2024-11-29
- **Size:** 876 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/spellfast-ai/)
- **Website:** [https://spellfast.ai/](https://spellfast.ai/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/spellfast-ai/privacy/](https://addons.mozilla.org/firefox/addon/spellfast-ai/privacy/)

## Description

Unlike traditional extensions that clutter your screen with underlines, SpellFast AI streamlines everything into one seamless action.

★ INSTANT CORRECTIONS: Just press CTRL + SHIFT + I and watch your text transform instantly
★ HANDS-FREE MODE: Use voice commands for a completely keyboard-free experience
★ UNIVERSAL COMPATIBILITY: Works flawlessly on any website - from emails to social media
★ MULTILINGUAL SUPPORT: Perfect your writing in any language
★ DISTRACTION-FREE: No annoying underlines or pop-ups - corrections appear only when you want them
★ PRIVACY-FOCUSED: Your data stays yours - we never collect or store your writing

WHAT MAKES US DIFFERENT:
While other extensions interrupt your flow with constant highlighting and suggestions, SpellFast AI waits for your command. One shortcut, instant results - it's that simple.

Customize your experience with easy-to-use settings and make perfect writing effortless.

Start writing faster and smarter today with SpellFast AI - the grammar assistant that respects your flow.

Privacy policy: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/390143bcc8db48ece1bd49d4fe92044b39829be7a492997da2b594dadc8f5f85/https%3A//spellfast.ai/privacy-policy" rel="nofollow">https://spellfast.ai/privacy-policy</a>

## Rankings

- #20,124 — Overall
- #9 — grammar and spell
- #16 — ai grammar check
- #16 — grammar check
- #22 — ai grammar checker
- #33 — ai grammar

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [AI Text Corrector](https://chrome-stats.com/d/corretor-de-texto-com-ia) — 57 users
- [GrammFix: AI Writer Helper](https://chrome-stats.com/d/grammfix) — 9 users, 3.50 / 5
- [Grammarly: AI Writing and Grammar Checker App](https://chrome-stats.com/d/grammarly-1) — 520,557 users, 4.09 / 5
- [Improve](https://chrome-stats.com/d/improve) — 1 users, 4.67 / 5
- [AI Writing Assistant](https://chrome-stats.com/d/ai-writing-assistant) — 1 users
- [GrammarFlow — Writing Assistant](https://chrome-stats.com/d/grammarflow-writing-assistant) — 1 users
- [Typeright: Grammar & Spelling Checker](https://chrome-stats.com/d/typeright) — 170 users, 4.00 / 5
- [FixMyText.AI](https://chrome-stats.com/d/fixmytext-ai) — 3 users
- [Trinka AI for Firefox](https://chrome-stats.com/d/trinka-ai-for-firefox-browser)
- [Aissista - AI Writing Assistant](https://chrome-stats.com/d/aissista-ai-writing-assistant) — 2 users, 5.00 / 5
- [Grammar Checker](https://chrome-stats.com/d/grammarchecker) — 18 users, 1.00 / 5
- [Grammar Checker and Writing Assistant by Sapling](https://chrome-stats.com/d/sapling-writing-assistant) — 661 users, 3.82 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/spellfast-ai)