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Side-by-side comparison · Writing & Translation

Copyleaks vs Hemingway Editor vs QuillBot

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Copyleaks

3.9

From $0

Best overall

Hemingway Editor

4.3

From $0

QuillBot

4.1

From $19.95/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Schools, publishers and businesses that need AI and plagiarism checks together, especially across several languages.

Best overall

Pick it if: Business owners, marketers and bloggers who want their website copy, emails and posts easier to read.

Pick it if: Students, non-native English writers and anyone who wants a paragraph cleaned up or reworded in one click.

Overview

AttributeCopyleaksHemingway EditorQuillBot
In one lineChecks text for AI writing and plagiarism in one scan, in over 30 languages.Highlights hard-to-read sentences so your writing is clear, and rewrites them with AI.Rewords, fixes grammar and summarises text, with an AI checker and humaniser built in.
Pricing modelFreemiumFreemiumFreemium
Starting price$0$0$19.95/mo
Free plan Yes Yes Yes
Works with Claude Code Yes No No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeCopyleaksHemingway EditorQuillBot
Overall rating3.94.3Winner4.1
Ease of useHow quickly someone non-technical gets value from it.
4.0
5.0
5.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
4.0
Output qualityHow good the results are before you fix them.
3.5
4.0
3.5
Value for moneyWhat you get for the price, including the free plan.
3.5
4.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.5
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeCopyleaksHemingway EditorQuillBot
Access & platform
Free plan Yes Yes Yes
Mobile app No No Yes
Desktop app–– Yes
Browser extension Yes No Yes
API access Yes No No
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes–
Connects to other apps Yes No Yes
Open source or self-hosted Yes No No
AI abilities
Works with your files Yes– Yes
Understands images Yes– No
Makes images No No–
Makes video No No No
Writes code No No No
Runs agents or automations No No No
Learns your brand or style– Yes Yes
Works in many languages Yes– Yes
Capabilities score10/ 174/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeCopyleaksHemingway EditorQuillBot
Plans

Free

$0

Quick one-off checks.

Free

$0

Checking how readable your writing is.

Free

Free

Odd sentences and quick grammar checks.

PersonalOur pick

$16.99/mo, or $13.99/mo billed yearly

Individuals checking work regularly.

Individual 5K

$100/yr ($8.33/mo)

Occasional AI help.

PremiumOur pick

$19.95/mo, or $99.95/yr ($8.33/mo)

Anyone rewording or checking text most weeks.

Pro

$99.99/mo, or $74.99/mo billed yearly

Teams and agencies.

Individual 10KOur pick

$150/yr ($12.50/mo)

Writers editing most days.

Team

Per seat, billed yearly

Schools and companies buying for a group.

Enterprise and Education

Custom

Companies and schools at scale.

Team 10K

$150/user/yr ($12.50/user/mo)

Teams of up to 50.

Enterprise

Custom

Large organisations.

Which plan to pickTry the free checker first. Personal covers about 100 pages a month, which suits most individuals. Only move to Pro if a team needs seats or you want website scans. One credit covers 250 words or one image.Use the free editor first. If you want the fixes done for you, try Editor Plus free for two weeks. Individual 10K is the best value if you write most days. Monthly billing is available but costs more than yearly.Stay on Free if you only reword the odd sentence. If you use it every week, the yearly Premium plan is far cheaper than paying monthly, but set a reminder before it renews because refunds after renewal are hard to get.

Key features

AttributeCopyleaksHemingway EditorQuillBot
Standout features
  • AI and plagiarism in one report
  • Many languages
  • AI image detection
  • Website scans
  • Works where you are
  • API and school integrations
  • Readability highlights
  • Reading grade level
  • AI sentence rewrites
  • Tone, length and style
  • Style guide
  • Paraphraser
  • Grammar checker
  • Summariser
  • AI detector and humaniser
  • Plagiarism checker and citations
  • Works where you write

Pros and cons

AttributeCopyleaksHemingway EditorQuillBot
Pros
  • AI and plagiarism checks in one report
  • Best multilingual coverage of the major detectors
  • Catches plagiarism translated from another language
  • MCP access lets you scan from Claude
  • Checks images as well as text
  • Shows readability problems at a glance
  • Free web editor with no sign-up
  • Teaches you to write more clearly over time
  • AI rewrites are one click on Editor Plus
  • Cheap next to most writing tools
  • No learning curve: paste, pick a mode, click
  • Yearly Premium is cheap next to Grammarly or a chat assistant
  • Many rewrite styles, including ones you define yourself
  • Grammar, summaries, citations and plagiarism checks in one subscription
  • Works inside Chrome and Word so you stay in your document
Cons
  • Like all detectors, it can flag human writing
  • Personal plan's word allowance is small
  • Big jump in price from Personal to Pro
  • Switching plans wipes unused credits, and refunds are strict
  • Overlaps almost completely with Originality.ai
  • Free version highlights but doesn't fix anything
  • Can push all writing towards the same short, flat style
  • AI plans are mainly sold yearly
  • Editor Plus caps AI rewrites each month
  • Free plan caps paraphrasing at 125 words per go and hides most modes
  • Reworded text can change your meaning or read awkwardly, so every rewrite needs checking
  • AI detector and humaniser are inconsistent, and the humaniser often still gets flagged by school checkers
  • Complaints about surprise annual renewals, refused refunds and constant upgrade pop-ups on the free plan
  • Owned by Learneo (Course Hero), and some users object to its data and privacy terms

Who each one is for

AttributeCopyleaksHemingway EditorQuillBot
Best for
  • AI and plagiarism checks in one report
  • Checking content in languages other than English
  • Scanning a whole website for copied pages
  • Checking images for AI
  • Making website and blog copy easier to read
  • Checking a reading grade level
  • Cutting long, wordy sentences
  • Writing for a general audience
  • Rewording a sentence or paragraph
  • Grammar and spelling fixes
  • Summarising articles and readings
  • Writing in a second language
  • Making formal writing simpler
You'll find it used by
  • Schools and universities
  • Publishers
  • Content agencies
  • Compliance teams
  • Students
  • Bloggers
  • Marketers
  • Small business owners
  • Copywriters
  • Students
  • Students
  • Non-native English writers
  • Academics
  • Freelance writers
  • Office staff

Questions people ask

Which is better, Copyleaks, Hemingway Editor or QuillBot?

Hemingway Editor scores highest overall in our ratings (Copyleaks 3.9/5, Hemingway Editor 4.3/5 and QuillBot 4.1/5). Copyleaks is best for AI and plagiarism checks in one report and checking content in languages other than English. Hemingway Editor is best for making website and blog copy easier to read and checking a reading grade level. QuillBot is best for rewording a sentence or paragraph and grammar and spelling fixes.

Which is cheaper, Copyleaks, Hemingway Editor or QuillBot?

Copyleaks: There's a free plan, and paid plans start at $0. Hemingway Editor: There's a free plan, and paid plans start at $0. QuillBot: There's a free plan, and paid plans start at $19.95/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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