By GrammarlySan Francisco, United States1 product across 1 category
Built for this. Works inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place.
Free plan
Yes
Writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for
Month to month
$30/mo
Pro
Billed yearly
$12/mo
$144 a year, Pro plan −60%
Watch out: Better at fixing than composing. It smooths writing toward a neutral register, which is not always what you want.
All plans (3)
Plan
Price
What you get
Free
$0
Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text
Pro
$30/mo · $12/mo yearly
rewriting whole sentences in a click, tone adjustment, unlimited personalised suggestions, and plagiarism and AI-text detection. It opens on a 7-day free trial with nothing to pay on the day and a reminder two days before it ends
Enterprise
Custom
adds proactive AI across the apps you work in, dedicated support, bring-your-own-key encryption, custom roles and permissions, and data loss prevention
By ProWritingAidLondon, United Kingdom1 product across 1 category
Built for this. Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants. Sells a lifetime licence.
Free plan
Yes
Free tier with a word limit, plus Story Canvas and 2 runs of the line editing report a day
Month to month
$30/mo
Premium
Billed yearly
$10/mo
$120 a year, Premium plan −67%
Watch out: The volume of suggestions is overwhelming until you turn most of them off. There are three ways to pay — monthly, yearly, or a one-off lifetime licence — and the yearly rates the page shows are sale prices rather than the standing ones.
All plans (3)
Plan
Price
What you get
Free
$0
Free tier with a word limit, plus Story Canvas and 2 runs of the line editing report a day
Premium
$30/mo · $10/mo yearly
everything in the free tier plus unlimited runs of the line editing report. A Storyteller Sale running as this was checked cut the yearly rate 25 per cent to $7.50 a month, or $90 for the year
Premium Pro
$36/mo · $12/mo yearly
everything in Premium plus 30 chapter critiques a day. The same sale cut its yearly rate to $9 a month, or $108 for the year. Yearly and lifetime both carry a 3-day money-back guarantee, and the sale applies to yearly plans only
By LearneoRedwood City, United States2 products across 1 category
Built for this. Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
Free plan
Yes
Free tier covering basic grammar and spelling
Month to month
$24.90/mo
Premium
Billed yearly
$5.83/mo
$69.90 a year, Premium plan −77%
Watch out: Owned by the same company as QuillBot since 2023. Month to month costs more than four times the annual rate, and there are four payment intervals to pick between, so the interval matters more than the tier.
All plans (3)
Plan
Price
What you get
Free
$0
Free tier covering basic grammar and spelling
Premium
$24.90/mo · $16.63/mo quarterly · $5.83/mo yearly
enhanced grammar, punctuation and style checking, up to 150,000 characters a text field, unlimited AI sentence paraphrasing, a style guide and the browser add-on
Teams
$11.07/mo
everything in Premium plus user management, a team style guide and a team dictionary. Every price on the page includes VAT
By LearneoRedwood City, United States2 products across 1 category
Built for this. The paraphraser most students actually use, with modes that change how far it moves from your original rather than one setting.
Free plan
Yes
Paraphrasing up to 125 words at a time in 2 modes, basic grammar fixes, humanizing up to 125
Month to month
$19.95/mo
Premium
Billed yearly
$8.33/mo
Premium plan −58%
Watch out: Rewriting someone else’s sentence is still their sentence, and universities treat it that way. The free tier caps paraphrasing at 125 words at a time, and paying month to month costs about two and a half times the annual rate.
All plans (3)
Plan
Price
What you get
Free
$0
Free tier: paraphrasing up to 125 words at a time in 2 modes, basic grammar fixes, humanizing up to 125 words for 6 uses a day, basic summaries, and limited access to the AI detector
Premium
$19.95/mo · $8.33/mo yearly
full access to paraphrasing in unlimited modes, advanced grammar recommendations, full humanizing, custom summaries and full access to the AI detector
Team Plan
no price published on the plan cards, sold through a separate page
everything in Premium plus team usage metrics, a user management dashboard, centralised billing, data control, and priority assistance with account management support
By Boondoggle StudioUnited States1 product across 1 category
Built for this. Marks the sentences that are hard to read and the adverbs you did not need, and does nothing else. The free web version has no sign-up.
Free plan
Yes
Free in the browser with no sign-up: the readability marking, and no AI at all
Month to month
$25/mo
Individual 5K
Billed yearly
$8.33/mo
$100 a year, Individual 5K plan −67%
Watch out: Readability is not the same as quality — it will flag a precise technical sentence as difficult. Deliberately narrow.
All plans (4)
Plan
Price
What you get
Free
$0
Free in the browser with no sign-up: the readability marking, and no AI at all
Individual 5K
$25/mo · $8.33/mo yearly
5,000 AI sentence rewrites a month, unlimited advanced grammar fixes, tone, length and style adjustment, and unlimited document review
Individual 10K
$30/mo · $12.50/mo yearly
the same again at 10,000 AI sentence rewrites a month
Team 10K
$30/mo · $12.50/mo yearly
10,000 AI sentence rewrites a user a month, licences managed on one bill, admin roles and extra AI credits. All three are Hemingway Editor Plus, the paid AI layer, and each opens on a free trial
By AI21 LabsTel Aviv, Israel1 product across 1 category
Built for this. Offers several rewrites of a sentence at once and lets you pick, which is a better fit for how editing actually works than a single suggestion.
Free plan
Yes
Free Basic plan: 10 rewrites and AI suggestions a day plus AI generations, 3 AI summarisations
Month to month
$13.99/mo
Advanced
Billed yearly
$6.99/mo
Advanced plan −50%
Watch out: Sentence-level by design, so it will not fix a paragraph that is structured wrong. The free tier runs to 10 rewrites a day and 3 AI summaries a month, and even the middle plan is capped at 30 rewrites a day — only the top plan is actually unlimited, which is what its name is doing.
All plans (3)
Plan
Price
What you get
Free
$0
Free Basic plan: 10 rewrites and AI suggestions a day plus AI generations, 3 AI summarisations a month, and unlimited spelling corrections and grammar checks
Advanced
$13.99/mo · $6.99/mo yearly
30 rewrites and AI suggestions a day, 15 AI summarisations a month, and unlimited AI recommendations, spelling corrections and grammar checks
Unlimited
$19.99/mo · $9.99/mo yearly
unlimited rewrites, AI suggestions and summarisations, with vocabulary enhancements, clarity improvements, fluency increases and premium support. Both paid plans open on a 3-day free trial, and annual billing is exactly half the monthly rate on each
By DeepLCologne, Germany1 product across 1 category
Built for this. The same quality that made its translation worth paying for, applied to rewriting. Notably better than the field on European languages.
Free plan
Yes
Free tier with a character limit
Month to month
$10.49/mo
Individual
Billed yearly
$8.74/mo
Individual plan −17%
Watch out: Improves phrasing rather than argument, and will not tell you a paragraph is not worth keeping. Write is not sold on its own: it comes with a DeepL Pro subscription, whose entry tier is capped at 300,000 characters a month.
All plans (7)
Plan
Price
What you get
Free
$0
Free tier with a character limit
Individual
$10.49/mo · $8.74/mo yearly
300,000 characters a month, 3 file translations a month, one glossary and no training on your data. Sold as DeepL Pro, which carries Write alongside the translator
Team
$34.49/mo · $28.74/mo yearly
1,000,000 characters per user a month, 20 file translations a month, bulk file translation, 5 shared style rule lists and 5 glossaries
Business
$68.99/mo · $57.49/mo yearly
unlimited characters, 100 file translations a month, 20 shared style rule lists, unlimited glossaries and translation memory
Enterprise
Custom
Voice Starter
$13/mo · $11/mo yearly
300 minutes a user a month of real-time meeting translation, up to 50 participants online and 10 in person
Voice Business
$38/mo · $32/mo yearly
600 minutes a user a month pooled across the subscription, up to 300 participants online and 100 in person, and single sign-on. Voice sits on its own tab, as does the API, and the translator plans open on a 30-day trial against 14 days on Voice
By Crimson AIMumbai, India1 product across 1 category
Built for this. Edits against journal conventions and subject-specific usage rather than general style, and flags the things reviewers flag.
Free plan
Yes
5,000 words a month of writing assistance, 4 proofread files or reports a month on credits, 5
Month to month
$20/mo
Premium
Billed yearly
$6.67/mo
$80 a year, Premium plan −67%
Watch out: Academic English only — it is the wrong tool for a blog post. The yearly prices on the cards are 40 per cent offers on Premium and Confidential Data, whose standing rates are $80 and $500, and the free tier stops at 5,000 words a month.
All plans (4)
Plan
Price
What you get
Free
$0
Basic plan, free at $0: 5,000 words a month of writing assistance, 4 proofread files or reports a month on credits, 5 AI writing requests a month, Lite and Standard modes only, standard data privacy and 1 plagiarism score a month
Premium
$20/mo
every writing feature including the grammar checker, paraphraser, consistency and file proofreading, all advanced writing modes, the APA, IEEE, ACS and AGU style guides, and the native Microsoft Word app
Premium Plus
$125 a year, with no offer applied to it
everything in Premium at double the credits, file translation across more than 30 languages, and proofreading of up to 240 files a year as editable files
Confidential Data
$500 a year is the standing rate, cut to $300 by the same 40 per cent offer
everything in Premium Plus plus an offline grammar checker app, unlimited AI writing, instant data deletion with no training on your text, and sovereignty and regulatory compliance. These are the Individuals prices; Enterprise and Institution are quoted on their own tabs
Two things separate these and both are on every card.
Fit
Whether a tool is built for this job, a strong fit for it, or
able to do it without that being its focus.
Free plan
Whether there is a tier you can keep using rather than a
trial that expires.
The order
Fit first, then a free plan, then alphabetical. There is
no score, no weighting we decline to publish, and nothing on this site a company can buy.
Questions
What is the best ai for editing?
There is no single answer, which is why this page lists 10 rather than one: Grammarly, ProWritingAid, LanguageTool, QuillBot, Hemingway Editor, Wordtune, DeepL Write, Trinka AI, Claude, ChatGPT. 10 of them are built for this kind of work rather than able to do it. Start with a free one.
Which of these have a free plan?
10 of the 10: Grammarly, ProWritingAid, LanguageTool, QuillBot, Hemingway Editor, Wordtune, DeepL Write, Trinka AI, Claude, ChatGPT. Free means a real free tier you can keep using, not a trial that expires.
How was this list chosen?
By hand, from the 750 products this site tracks, and it is checked against the catalogue on every build — a product renamed or removed breaks the build rather than quietly disappearing from here. Nothing on this site can be paid for: no listing, no position, no wording.
