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COMPARE/WRITING & CONTENT/GRAMMARLY · JASPER
WRITING & CONTENT · HEAD TO HEAD● YOU PICK THE WINNER
GrammarlyvsJasper
Two tools. Verified data. Side by side. Everything on this page is vendor-sourced and dated. We don't pick a winner. That's your call. Use the Lens to apply your own criteria.
Grammarly
Starts at$12/mo
Free planYes
Plans3 tiers
Features9 features
Integrations18 native
PlatformsWeb · Mac · Windows · iOS · Android · Chrome · API · Slack
MCP serverNo
Jasper
Starts at$49/mo
Free planNo
Plans3 tiers
Features11 features
Integrations4 native
PlatformsWeb · Chrome · API
MCP serverYes
● THE LENS · YOUR COMPARISON · YOUR WINNER
Build the lens. Watch it lean.
Your criteria. Your weighting. Your verdict. Pick your axes and watch the data respond. You decide what's best for you, not us.
PRESETS
Based on your selections, the data leans this way, scroll down to read more.
AXES · 8 · PICK ANY
ALL TOOLS UPDATED 2026.04.29
CAPABILITIES
Where they overlap, where they don't
Functional roles from both tools, split by coverage. The corners are where the two tools become different products.
Only GrammarlyRoles covered exclusively by this tool.
2- Proofreader Editor
- Translator
Both2 of 10 roles in the verified union.
2- Copy Writer
- Email Writer
Only JasperRoles covered exclusively by this tool.
6- Long Form Writer
- Short Form Writer
- Ad Copywriter
- Seo Writer
- Content Repurposer
- Image Generator
ROLE COVERAGE···
PLAN LADDER
Every plan, mapped to one ladder
Both tools laid out by ascending monthly cost. Expand any plan to see what's included.
AT A GLANCE
More comparable fields
Every data point from both tools, side by side. Nothing hidden, nothing weighted.
FACT
Category
Writing & Content
GTM & Sales
Starting Price
$12/mo
$49/mo
Pricing Model
Freemium
Paid
Plans
3 tiers
3 tiers
Free Plan
Yes
No
Free Trial
Yes
Yes
Platforms
Web · Mac · Windows · iOS · Android · Chrome · API · Slack
Web · Chrome · API
Top Features
9 features
11 features
Integrations
18 native
4 native
Public API
Yes
Yes
Webhooks (In)
No
INTEGRATIONS · 21 TOOLS
Integrations from both tools, side by side
Integrations sourced from each tool's own documentation. Where both tools connect to the same app, you see it once. The rest shows where their ecosystems diverge.
BOTH1
17
3UNION21
INTEGRATION
NOTES
Slack
✓extension
✓
Both. Works via browser extension and desktop app
Asana
✓
—
App action (Premium/Teams/Enterprise/Education): create or link project management tasks
Calendly
✓
—
App action (Premium/Teams/Enterprise/Education)
DEEP READ
What it does
Features and capabilities sourced from each tool's own documentation, structured for comparison.
Grammarly
TOP FEATURES · 9
F01
Grammar and ProofreadingeditingCatches typos, missing punctuation, grammatical errors, and commonly confused words in real time. Red underlines appear wherever corrections are available, across all plans and platforms.
F02
Multilingual Writing SupportlanguageReal-time grammar and spelling support in 20+ languages. Full clarity and fluency suggestions are available in English, Spanish, French, Portuguese, German, and Italian. An additional 17 languages were added in March 2026 for grammar and spelling (beta). In-line translation across 19 languages works without leaving the writing context. Source: grammarly.com/blog/product/multilingual-support-in-additional-languages (March 2026).
F03
Cross-Platform IntegrationintegrationWorks across 1 million+ apps and websites including Gmail, Outlook, Google Docs, Slack, and Microsoft Teams via browser extension, desktop app, and mobile keyboard.
F04
Full-Paragraph RewritesaiAccepts AI-generated full-paragraph rewrites to transform first drafts into polished documents with one click. Available on Pro and above.
F05
Tone AdjustmentstextAdjusts writing tone from formal to friendly with real-time suggestions so each message reads as intended. Available across all plans.
F06
Custom Style GuidescollaborationTeams set brand-specific writing rules or upload existing style guides. Grammarly surfaces real-time guidance when writers deviate from the standard. Available on Pro and Enterprise.
Jasper
TOP FEATURES · 11
F01
Jasper IQaiProprietary context hub integrating brand voice, audience insights, marketing best practices, and company knowledge to ensure consistent, on-brand AI outputs across all channels.
F02
Brand VoicetextTrain Jasper on existing content so AI-generated text matches your company's unique tone, style, and personality across every campaign and channel.
F03
Knowledge BasestorageUpload company documents, product information, and brand materials so Jasper references accurate, company-specific context when generating content.
F04
Jasper Agentsai100+ purpose-built marketing agents autonomously handle tasks like SEO optimization, content personalization, and deep research, always in your brand voice.
F05
CanvaseditingModern AI workspace where marketers plan, create, and collaborate on content at scale, with embedded agents and brand controls throughout the workflow.
F06
Content PipelinesautomationConnect data, creativity, and distribution in one intelligent system that automates the entire content lifecycle from brief to published asset.
WHO IT'S FOR
Who each tool is built for
Use cases and fit tags from each tool's own positioning. Match these to your context, not their marketing.
marketerWriters working across Gmail, Google Docs, Slack, and Microsoft Office get real-time grammar corrections without switching apps. The Chrome extension surfaces suggestions in-context; the desktop app catches errors across every desktop surface. Custom Style Guides and Brand Tones enforce organizational writing standards so team members don't need editorial review for every piece.
enterpriseTeams writing in multiple languages use Grammarly's 20+ language support for real-time grammar and spelling corrections, plus in-line translation across 19 languages. No separate translation tool required. Full clarity and fluency suggestions are available in English, Spanish, French, Portuguese, German, and Italian.
researchStudents and researchers use Citation Finder to auto-generate properly formatted citations in APA, MLA, or Chicago style from credible sources. AI Grader provides rubric-aligned feedback and grade prediction before submission. Plagiarism Checker scans against academic databases. All three agents run inside Grammarly Docs without leaving the writing surface.
Content marketing teamsJasper enables teams to create content optimized for SEO, AEO (Answer Engine Optimization), and GEO (Generative Engine Optimization) at scale. The platform produces content that ranks higher in search results, drives organic traffic, and strengthens domain authority. By leveraging AI agents and intelligent workflows, marketers scale content production while maintaining quality and search performance standards across multiple channels and formats.
KEEP COMPARING
Related comparisons
Other head-to-heads featuring one of these tools.
BROADEN THE SHORTLIST
Alternatives to consider
Other tools in this space, linked to their full profiles.
● FINAL READ · YOUR WINNERYou've seen the data.
You've seen the data.
The decision is yours.
Stackology doesn't review tools. We source, structure, and map them, and hand you the lens. See what fits, build a stack around it, and ship.
No editorial winner. No sponsored placement. No weighted score. The same dataset feeds every comparison page, the canvas, and the stack builder.