Grammarly vs Hemingway Editor: Which Fixes Business Writing Faster?
Grammarly vs Hemingway Editor compared for workplace writing — what each tool catches, where each falls short, and which is worth your money.
For business writing, Grammarly fixes more problems than Hemingway Editor and is the better daily-use tool for non-native English speakers. Hemingway is free, excellent at readability, and works well as a secondary pass — but it doesn’t catch grammar errors, tone issues, or phrase-level awkwardness. Grammarly does all three. Use Grammarly for daily email and Slack writing, and consider Hemingway for long documents where clarity and sentence length matter most.
What Each Tool Does Well
Understanding where these tools overlap — and where they don’t — is the key to using them correctly.
Grammarly’s Strengths
Grammarly works in real time inside Gmail, Outlook, Google Docs, Slack, and most browser text fields. You don’t change your workflow; it comes to where you write.
Its core capabilities for workplace writing:
Grammar and spelling. Catches subject-verb agreement errors, incorrect articles (“a” vs “an” vs nothing), wrong prepositions, and misused words. For non-native speakers, these are the most common technical errors.
Tone detection. Flags emails that might read as harsh, cold, overly apologetic, or uncertain. Suggests specific alternative phrases. This is Grammarly’s most valuable feature for professional communication.
Clarity suggestions. Identifies wordy phrases and suggests shorter alternatives. “In order to” → “To”. “At this point in time” → “Now”.
Delivery warnings. Flags phrases that are likely to cause misunderstanding — passive-aggressive language, phrases that might offend, overly hedged requests.
Hemingway’s Strengths
Hemingway Editor (hemingwayapp.com) highlights text by color based on readability problems:
Purple highlights = word has a simpler alternative (use “use” not “utilize”) Blue highlights = adverb you could cut or replace with a stronger verb Green highlights = passive voice Yellow highlights = sentence is hard to read Red highlights = sentence is very hard to read (too complex)
Hemingway also shows you a readability grade level and tells you how many sentences are in passive voice.
Where Hemingway wins: it forces you to confront long, complex sentences visually. Seeing a paragraph drenched in red is motivating in a way that a text-based suggestion isn’t.
What Neither Tool Catches
Both tools miss:
- Whether your email is appropriate for the relationship and context
- Cultural calibration (too direct for this Japanese client? Too casual for this German contact?)
- Whether your argument is logically structured
- Whether your subject line will actually get opened
These gaps are important. No tool replaces your judgment about the communication situation.
Side-by-Side Comparison
| Feature | Grammarly Premium | Hemingway Editor |
|---|---|---|
| Grammar correction | Yes | No |
| Spell check | Yes | Basic |
| Tone detection | Yes | No |
| Readability score | Yes | Yes |
| Passive voice detection | Yes | Yes |
| Works inside Gmail/Slack | Yes | No (copy-paste only) |
| Real-time suggestions | Yes | Yes (in editor) |
| Cost | ~$12/month | Free (web) / $19.99 one-time (desktop) |
| Best for | Daily email + Slack | Long documents, blog posts |
Before and After: The Same Email Through Both Tools
Let’s take a common non-native speaker draft and see what each tool catches:
Original draft: “I wanted to let you know that the report that was requested by you has been completed by me and it has been attached to this email for your review and consideration at your earliest convenience.”
After Grammarly: Tone flag: “I wanted to let you know” is weak opening. Clarity: Passive voice throughout — restructure. Suggestion: “The report you requested is attached. Please review when you have a moment.”
After Hemingway: Red sentence (very hard to read — 44 words). Passive voice flag. No specific phrase corrections.
Grammarly gives you the specific fix. Hemingway shows you there’s a problem but doesn’t tell you exactly what to write instead. For non-native speakers who are learning, Grammarly’s specific suggestions accelerate skill development. Hemingway’s highlights tell you something is wrong without always showing you the solution.
The Case for Using Both
For high-stakes documents — a client proposal, a performance review, a long stakeholder update — running through Hemingway after Grammarly is worth the extra three minutes.
Grammarly catches the grammar and tone issues. Hemingway catches the structural complexity that Grammarly sometimes misses. A document that passes both tools is usually genuinely clear.
For daily email, Grammarly alone is sufficient. The copy-paste workflow of Hemingway adds too much friction for short messages you’re sending ten times a day.
Who Should Use Each
Use Grammarly if you:
- Write in email, Slack, or Google Docs daily
- Are a non-native speaker who needs grammar and tone guidance
- Send external communications to clients or executives
- Want a tool that integrates into your existing workflow
Use Hemingway if you:
- Write long reports, blog posts, or proposals
- Already write grammatically well but tend toward complexity
- Want a free tool for occasional use
- Are editing a finished draft rather than writing in real time
Use both if you:
- Write long documents that go out to senior stakeholders or clients
- Have time for a two-pass editing workflow
- Are working on something high-stakes where clarity is critical
Cost Comparison
Hemingway is free at hemingwayapp.com (the web version). The desktop app is a one-time $19.99 purchase.
Grammarly Premium runs approximately $12/month billed annually. The free version of Grammarly is useful but doesn’t include tone detection or advanced clarity suggestions — the features that matter most for workplace writing.
For most non-native professionals, Grammarly Premium pays for itself within the first month of use. See our full Grammarly review for a detailed breakdown of whether Premium is worth it for your specific writing volume.
FAQ
Does Hemingway Editor improve grammar?
No. Hemingway Editor does not correct grammar errors. It focuses exclusively on readability — sentence length, passive voice, adverbs, and word complexity. You need a separate tool like Grammarly for grammar correction.
Can I use Grammarly and Hemingway on the same document?
Yes. The most effective workflow is to write the document, then run Grammarly first (grammar and tone), then paste into Hemingway (readability). Accept or reject suggestions from each tool based on your judgment.
Which tool is better for non-native English speakers?
Grammarly is significantly more useful for non-native speakers because it corrects the specific errors most common in ESL writing: article usage, preposition choice, subject-verb agreement, and tone calibration. Hemingway assumes your grammar is already correct.
Is the free version of Grammarly enough?
The free version catches basic grammar and spelling errors. For tone detection and advanced clarity suggestions — the features most valuable for workplace communication — you need Premium. The free version is a good trial to assess whether the tool fits your workflow.
Does Hemingway work in different languages?
Hemingway Editor is English-only. Grammarly supports English as its primary language, with limited support for other languages in some plans.