Best Proofreading Software for 2026: 10 Options Compared by Use Case

Grammarly is the default proofreading pick for a reason: it checks grammar, spelling and punctuation as you type in the browser, Google Docs, Word and email, and the Pro plan adds full-sentence rewrites, tone adjustment and a plagiarism checker. Pro costs $30 a month billed monthly or $12 a month billed annually, and the free plan covers basic corrections with 100 AI prompts a month.

The trade-off is the price gap between billing terms: monthly billing costs $360 a year against $144 on the annual plan, so occasional users pay more than double for flexibility. The free plan also caps advanced suggestions, and style guides and brand tones sit on Pro. Buy Grammarly when you write every day across many apps and want one checker everywhere; buy LanguageTool or ProWritingAid when a single language or long documents matter more.

ProWritingAid is built for writers who edit whole documents, not single sentences: its 25+ reports track style, sticky sentences, overused words, pacing and dialogue, alongside grammar and spelling. Premium costs $30 a month billed monthly or $10 a month billed annually, and a $399 lifetime licence covers the same features forever, which no other tool here offers.

The catch is the add-on economy. Manuscript-level AI analysis — Manuscript Analysis, Plot Analysis, Virtual Beta Reader — is not in any subscription and runs on Story Credits from $25 each, so a full manuscript analysis can cost more than a year of Premium. Buy ProWritingAid when you write books or long reports and want the deepest edit; buy Grammarly when you want the fastest check inside every app.

LanguageTool is the strongest proofreading choice when English is not the only language you write in: it checks grammar, spelling and style in more than 30 languages, on top of an open-source engine running since 2003. Premium costs $24.90 a month billed monthly or $5.83 a month billed annually, and the free plan works with no account and no card on texts up to 2,000 characters.

The monthly price is the thing to watch: $24.90 a month is the second-highest monthly figure here, while the annual plan costs $69.90 a year — less than three months at the monthly rate. European visitors see euro prices instead (€19.90 a month, €59.89 a year). Buy LanguageTool when you write in several languages or value the open-source core; buy Grammarly when you write only in English and want the widest app coverage.

QuillBot is the proofreading tool for writers who rewrite as much as they correct: nine paraphrasing modes rework sentences for fluency, formality and tone, and Premium adds a grammar checker, a plagiarism checker and a summarizer. Premium costs $19.95 a month billed monthly or $8.33 a month billed annually, and the free plan paraphrases up to 100 words at a time in two modes.

The limits to watch are the free cap and the moving price. The 100-word free cap makes long passages a Premium job, and the site shows different annual prices to different visitors, including first-year offers below the standard $99.95. Buy QuillBot when paraphrasing and plagiarism checks are daily work; buy Grammarly or LanguageTool when straight grammar correction is the priority.

Hemingway Editor does a different job from the grammar checkers: it scores readability, highlights long sentences, passive voice and weak adverbs, and gives every draft a grade level. The web editor is free with no account, the Editor 3 desktop app is a one-time $19.99 purchase, and Editor Plus adds AI sentence rewrites from $10 a month billed monthly or $8.33 a month billed annually.

Do not buy Hemingway as your only checker. The desktop app carries no AI features, and even Plus is a style tool first — it will not catch every grammar error the way Grammarly or LanguageTool do. Buy Hemingway when your drafts are correct but wordy, and pair it with a grammar checker for the final pass; skip it if you need one tool that does everything.

Wordtune is a sentence surgeon: paste a sentence and it offers rewrites for tone, formality and length, which suits professionals who send the same email five times a day. Advanced costs $6.99 a month billed monthly or $4.89 a month billed annually, the cheapest paid start in this list, and the free Basic plan gives 10 rewrites a day.

The warning is about the product's future: AI21 Labs stopped active development of Wordtune in 2025, so the tool works today but new features are unlikely. The iOS app also charges $24.99 a month for the same plan that costs $6.99 on the web. Buy Wordtune on the website when rewriting is the daily job; skip it if you need a tool still under active development.

Trinka is the proofreading tool built for papers, not posts: it checks academic and technical writing for grammar, style and consistency, then adds publication-readiness checks and a journal finder for submission. Premium costs $20 a month billed monthly or $6.67 a month billed annually, and the free Basic plan covers 5,000 words a month.

The rating is the caution: Trinka scores 3.9 out of 5 on G2 from 17 reviews, the lowest here, with some reviewers reporting missed errors in long paragraphs. Its formal academic tone also suits manuscripts better than casual copy. Buy Trinka when a paper is headed for a journal; buy Grammarly or QuillBot when the writing is marketing, email or general business.

Ginger corrects whole sentences in context and translates into more than 40 languages, which makes it the natural pick for non-native English writers. Premium costs $13 a month billed monthly or $7.50 a month billed annually, and a personal trainer mode turns your own mistakes into lessons. It works in the browser, in Word and on mobile.

The price needs a check before you pay: the vendor page lists Premium at $13 a month while G2's vendor-supplied listing says $13.99, and the two-year plan drops the rate further to $6 a month. There is also no plagiarism checker at any tier. Buy Ginger when translation and sentence-level correction matter most; buy LanguageTool when you need more languages checked, or QuillBot when originality checks matter.

WhiteSmoke is the old-school desktop checker in this list: one Windows and web tool that checks grammar, spelling, style and punctuation, with a translator and dictionary built in. Essential costs $9.95 a month billed monthly or $79.95 a year, and a three-year plan cuts the rate to about $4.44 a month.

The cautions are the missing free plan and the thin evidence. There is no free tier, only a trial, and the vendor website no longer shows a clear pricing page — the price here comes from directory listings. The 4.6 G2 rating also rests on 10 reviews. Buy WhiteSmoke when you want a desktop tool with translation built in; buy Grammarly or LanguageTool when you want a free plan and a tool still adding features.

PaperRater is the student pick: a free, ad-supported checker that grades essays, checks grammar and spelling, and scans for plagiarism, all by pasting text into the site. Premium costs $14.95 a month billed monthly or $95.40 a year, and raises the limits to 20 pages per submission, 200 submissions a month and 25 plagiarism checks.

The free plan's caps are the limit: 5 pages per submission, 50 submissions and 10 plagiarism checks a month, and there is no browser extension or Word add-in, so every check means a trip to the website. Accuracy reviews are also mixed. Buy PaperRater when free essay scoring and plagiarism checks are the job; buy QuillBot or Trinka when the work is professional and needs an extension that follows you.