How to Use Grammarly for Inline Writing Assistance

Grammarly gives inline writing help in the places you already type: browser extension, Windows and Mac apps, mobile keyboards, and Grammarly Docs at app.grammarly.com. Red underlines flag critical grammar, spelling, and word choice issues. On paid plans, blue underlines often flag clarity and tone in Docs and related surfaces. For a product overview and related workflows, start at /explore/grammarly.

This guide focuses on everyday inline assistance: install, set goals, review underlines in order, protect facts, and know when to move from a quick fix to generative rewrite tools. Pair it with rewrite workflows at /blog/how-to-use-grammarly-generative-ai-for-rewriting-and-tone and with Docs agents at /blog/how-to-use-grammarly-docs-and-ai-agents-for-writing. Plan features and prices can change, so confirm details at grammarly.com/plans.

When to use inline assistance

Use inline help when you are drafting email, chat, forms, tickets, or documents and you want correctness without leaving the app. Inline review shines for short and medium text where you can accept or dismiss each suggestion in context. It is less ideal when you need a full tone pass across many paragraphs. In that case open generative rewrite or Grammarly Docs agents instead.

Free plans cover writing without mistakes, tone visibility, and a monthly generative AI prompt allotment listed as 100 prompts on official plans pages. Pro adds fuller rewrite and tone tools with a higher monthly prompt allotment listed as 2,000 prompts per member. Enterprise lists unlimited prompts and advanced security, with sales contact for details. Always verify live limits at grammarly.com/plans.

How inline suggestions work

You write or paste text. Grammarly marks issues as you go. Critical issues tend to show as red underlines. Clarity and tone suggestions often show as blue underlines on paid plans, including in Grammarly Docs support materials. Click a mark to see the suggestion, then accept, dismiss, or open a deeper rewrite when your plan allows.

Grammarly checks writing quality. It does not prove factual truth. Keep product names, prices, legal claims, and dates under your control. If a suggestion softens a must keep phrase, dismiss it and add that phrase to a protected list for the draft.

Step by step inline workflow

1. Install the surface you use most

Pick one primary surface for a week so habits stick. Browser extension covers web mail and many editors. Desktop apps help with local documents. Mobile keyboards cover messages on the go. Grammarly Docs is the agent ready writing surface at app.grammarly.com.

Install checklist
[ ] Browser extension for Gmail, Docs web, and CMS fields
[ ] Windows or Mac app if you edit local files often
[ ] Mobile keyboard for Slack style messages on phone
[ ] Bookmark app.grammarly.com for Docs drafts
[ ] Confirm account plan at grammarly.com/plans

2. Write a short goal card before you draft

Audience, formality, and domain shape which suggestions feel right. Set goals in the Grammarly sidebar when the surface offers them. A one line goal card keeps you from accepting a casual rewrite in a legal note.

Goal card
Audience: finance stakeholders
Formality: formal
Domain: business
Must keep: Q3, ARR, customer name Acme
Must avoid: slang, emoji, hype adjectives
Success: clear ask in under 120 words

3. Draft freely, then review red underlines first

Finish a full pass before hunting style. Clear critical red marks so spelling and grammar do not distract from tone work. Then review blue clarity and tone marks if your plan shows them.

Review order
1) Red underlines: grammar, spelling, wrong word
2) Protected facts: names, numbers, links
3) Blue underlines: clarity and tone on paid plans
4) Length: cut filler only after meaning is safe
5) Final read aloud for awkward rhythm

4. Protect facts before you accept style changes

Copy must keep strings into a scratch note. After each accept, skim those strings. If a rewrite changed a number or softened a commitment, undo and rewrite the sentence yourself.

Protected strings
Customer: Acme Robotics
Date: 24 August 2026
Price: $48 per seat billed annually
Claim: 99.9% uptime in the published SLA
Link: https://example.com/sla
Do not change these strings during inline accepts

5. Accept, dismiss, or escalate to rewrite

Accept when the suggestion keeps meaning. Dismiss when it breaks terminology. Escalate to generative rewrite when a whole sentence is muddy. Escalation patterns live in /blog/how-to-use-grammarly-generative-ai-for-rewriting-and-tone.

Decision rule per underline
Accept: clearer and facts unchanged
Dismiss: changes required term or softens a commitment
Escalate: sentence needs structure change, not a word swap
Escalate prompt seed: Make this clearer. Keep every number and name.

Copyable inline examples for common surfaces

Use these as practice drafts. Paste into a Grammarly enabled surface, run the review order, and note which marks you accept. Save the ones that match your weekly writing jobs.

Client email with a clear ask

Subject draft
Quick update on the Acme rollout timeline

Body draft
Hi Jordan,
I wanted to follow up on the Acme rollout. We finished staging on Monday. We need your approval on the go live window for next Tuesday between 9 and 11am local time. Please reply with yes or propose another two hour window this week.
Thanks,
Sam

After inline pass goals
Keep: Acme, Monday, Tuesday, 9 and 11am
Tone: polite and direct
Cut: soft openers if a clearer open exists
Ask: one decision only

Slack update for a team channel

Slack draft before review
hey team - deploy is kinda done, watch for weird errors in checkout, ping me if stuff breaks, thx

Rewrite target after inline help
Team: checkout deploy is live in production.
Watch for payment errors for the next hour.
Ping @sam if you see failed charges.
Rollback owner: Sam

Support reply that stays calm

Support draft
Hi, sorry for the wait. We looked at order 4412. The label was created but the carrier scan is missing. I opened a carrier ticket and I will email you when the first scan appears or within 24 hours with next steps.

Inline goals
Formality: professional warm
Must keep: order 4412, 24 hours
Avoid: blame language toward the customer

Job application paragraph

Cover letter paragraph draft
I lead a four person support team and I reduced first reply time from 14 hours to 5 hours in two quarters by changing triage rules and templates. I want to bring that operating habit to your customer experience group.

Protect
Metrics: 14 hours, 5 hours, two quarters
Role target: customer experience group

Blog intro that needs clarity

Blog intro draft
A lot of teams kind of struggle with writing because there are too many tools and nobody knows which suggestion to trust when they are rushing before a launch.

Clarity target
Many teams struggle to ship clear writing when tools disagree and deadlines are tight. This guide shows a simple review order you can reuse before every launch note.

Subject line options

Subject line candidates
A) Action needed: approve Tuesday go live window
B) Acme rollout: please confirm Tuesday 9-11am
C) Quick question about next week
Prefer A or B after Grammarly clarity pass; avoid C for decision mail

Meeting follow up

Meeting follow up draft
Thanks for today. Decisions: we keep the beta invite list at 50 companies. Owners: Priya owns email copy, I own the waitlist form. Deadline: Friday 4pm. Risks: legal review may slip to Monday.

Inline check
[ ] Numbers unchanged
[ ] Owners clear
[ ] Deadline clear
[ ] Risk stated without blame

Internal policy note

Policy note draft
Expense reports over $75 need a receipt photo uploaded the same day. Missing receipts delay reimbursement until the photo is added.

Goals
Audience: all staff
Formality: formal
Domain: general
Must keep: $75, same day

Customer success check in

CS check in draft
Hi Alex, sharing a short health check for Acme. Adoption: 62 of 80 seats active in the last 14 days. Risk: two admins still pending SSO setup. Ask: can we schedule 30 minutes next week to finish SSO?

Protect: 62, 80, 14 days, 30 minutes, Acme, SSO

Tips and verification

Treat underlines as advisors, not as automatic truth. Read the full sentence after every accept. Keep a protected string list for regulated or contractual language. If your team uses Enterprise, Business, or Education, admins may control Docs and editor features on the Feature access page, so confirm what your account can show.

• Review red underlines before blue clarity marks
• Dismiss suggestions that change required terminology
• Confirm plan limits at grammarly.com/plans before promising rewrite capacity to a team
• Move muddy paragraphs to generative rewrite instead of accepting weak word swaps
• Remember Grammarly checks writing quality, not factual truth

Common mistakes

• Accepting every underline without reading for meaning changes
• Expecting Grammarly to verify prices, dates, or legal claims
• Skipping goal settings when tone matters
• Editing only style while red grammar marks remain
• Using inline accepts for a full document tone shift that needs agents
• Assuming Free rewrite depth matches Pro without checking grammarly.com/plans
• Leaving protected names and numbers unchecked after a long accept streak

Related Grammarly articles: /blog/how-to-use-grammarly-generative-ai-for-rewriting-and-tone, /blog/how-to-use-grammarly-docs-and-ai-agents-for-writing, and /blog/how-to-use-grammarly-ai-chat-for-drafting-and-ideation. Return to /explore/grammarly for the broader guide set.