Compare other tools| Tool | Grammarly | Jasper |
|---|
| Price | From $30/month$144/year billed annually | From $69/month$708/year billed annually |
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| Free plan | Free plan | Free trial |
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| Best for | - Professionals who want real-time grammar and clarity checks
- Writers who work across many tools and browsers
- Teams that want a consistent style guide enforced automatically
| - Marketing teams publishing content at volume
- Maintaining a consistent brand voice across multiple writers
- Ad copy, product descriptions and landing page text
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| Ease of use | Usable by beginners | Usable by beginners |
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| Key features | - Real-time grammar, spelling and punctuation corrections
- Clarity and conciseness suggestions
- Tone detection and adjustment recommendations
- Generative AI for drafting and replying to messages
- Style guide and vocabulary settings for teams
| - Brand voice settings that apply to all generated outputs
- Document editor with inline AI writing commands
- Template library covering marketing content types
- Campaign workflow for multi-asset content projects
- Chrome extension for writing inside other tools
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| Integrations | Microsoft Word, Google Docs, Chrome, Slack, Outlook, Gmail | Google Docs, Chrome, Webflow, Zapier, HubSpot, Salesforce |
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| API | Not on record | Not on record |
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| Skill level | Beginner, Intermediate | Beginner, Intermediate |
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| Platforms | Web, macOS, Windows, Browser extension, iOS, Android | Web, Browser extension |
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| Main advantages | - Works across nearly every writing surface through a browser extension
- Real-time suggestions are easy to review without breaking flow
- Free tier covers the core grammar checks
| - Brand voice feature suits teams with strict style guidelines
- Wide template library covers most marketing content types
- Campaign workflow reduces context-switching across assets
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| Main disadvantages | - Advanced style and clarity suggestions are locked to paid plans
- Suggestions can over-correct informal or creative writing
- Strongest for English; limited support for other languages
| - No permanent free tier; requires a paid plan after the trial
- Output quality depends heavily on the detail in your prompt
- Less suited to technical or long-form narrative writing
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| Data checked | Checked October 4, 2026 | Checked October 4, 2026 |
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| Try Grammarly | Try Jasper |
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Which one to choose
Choose Grammarly if
- Professionals who want real-time grammar and clarity checks
- Writers who work across many tools and browsers
- Teams that want a consistent style guide enforced automatically
Read review
Choose Jasper if
- Marketing teams publishing content at volume
- Maintaining a consistent brand voice across multiple writers
- Ad copy, product descriptions and landing page text
Read review