Best Proofreading Software in the USA
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Compare the Top Proofreading Software in the USA as of January 2026
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What is Proofreading Software in the USA?
Proofreading software provides the tools to search, find and correct grammar, spelling, punctuation and formatting errors in a text. Compare and read user reviews of the best Proofreading software in the USA currently available using the table below. This list is updated regularly.
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1
Trinka AI
Trinka AI
Trinka AI is a privacy-focused grammar checker and writing assistant designed for academic and technical writing. Created by language and science experts, it detects and corrects various intricate writing errors such as contextual spelling mistakes and advanced grammar issues. Additionally, Trinka suggests improved vocabulary choices and offers real-time writing tips to help professionals and academics write clearly, formally, and engagingly. By adapting to different subjects, Trinka ensures that its corrections align with the specific nuances of each topic, maintaining high professional standards in writing.Starting Price: $6.67/user/month -
2
ProWritingAid
Orpheus Technology
Companies using ProWritingAid produce higher quality content, comms, reports, bids and other documents with fewer mistakes, faster. ProWritingAid eliminates common error types, inconsistent terminology, contextual spelling errors, grammar mistakes, and poor writing style. A wide range of integration options, including API and on-premise solutions, supports all sizes of organization, including those with high-level security and privacy requirements.Starting Price: $79.00/year/user -
3
Grammica
Grammica
To find grammar, spelling, punctuation, plagiarism, and syntax mistakes in your work, Grammica utilizes a highly sophisticated machine-learning algorithm. Your work is extensively examined in real-time by our English grammar checker. Our clever writing helper tool puts your content through a sophisticated algorithm that analyses the context of your writing to identify grammar mistakes. It shows a brief overview and the sort of fault it has found.Starting Price: $0 -
4
LanguageTool
LanguageTooler
Get the most out of your documents and present texts without errors. It doesn't matter if you're working on a dissertation, an essay, a book, or just want to jot something down. Go far beyond grammar and spell checking, and impress with clear, precise, and stylistically correct writing.Starting Price: $59 per year -
5
WProofreader
WebSpellChecker
WProofreader Software Development Kit (SDK) by WebSpellChecker is a combo of ready-made integrations for WYSIWYG editors and standalone API, helping development teams enrich web apps and custom systems with grammar and spelling check functionality and standalone HTTP API. WProofreader integrates with WYSIWYG editors and HTML controls. Cloud and On-premise deployment. Ideal for security-conscious teams and companies. Key features: high security, multilingual spelling and grammar-check, language autodetect, spelling autocorrect, autocomplete suggestions, integration with business infrastructure or app, company-wide and user dictionaries, customization options, accessibility. Available as a browser extension for Chrome, Firefox, and Microsoft Editor. WProofreader extension works with various online software: project management apps publishing platforms social platforms email service document management content management CRM systems service desk systems -
6
PerfectIt
Intelligent Editing
If you're working on contracts, proposals, reports, technical documents, articles and books, PerfectIt saves time on copy-editing, so that authors can pay more attention to what matters most: the words and their meaning. By helping to eliminate typos, it saves money on re-writes and changes, especially after documents have gone to press. It increases the chance that proposals will be accepted and articles will be published. It can enforce the preferences of your house style and ensure that your business is presented the way you want it to be. Abbreviations help to save space. But they can also be confusing or distracting; and when readers don’t understand them, they can get in the way of your message. PerfectIt brings clarity by linking every abbreviation to its definition. It can automatically generate a Table of Abbreviations and it can check every abbreviation in your text to make sure it’s defined on first use.Starting Price: $70/year, per user -
7
WRITER
WRITER
WRITER is an end-to-end platform for building, activating, and supervising AI agents across the enterprise. It empowers IT and business teams to collaboratively build agents that automate work, improve decision making, and drive business outcomes. With WRITER, teams get a home for their AI-powered work, while builders get intuitive development tools, seamless integrations, and full oversight via approval workflows, logs, and role‑based controls. Powered by WRITER’s Palmyra LLMs and Knowledge Graph, the platform powers accurate, reliable AI agents that meet strict security and compliance standards, including SOC 2 Type II, GDPR, HIPAA, PCI, and the ISO trust triad. With WRITER’s team of AI experts, we turn AI pilots into company‑wide wins for global leaders like Vanguard, Salesforce, Prudential, Qualcomm, and more.Starting Price: $29 per user/month -
8
Loio
Loio
Loio is a contract management platform designed for creating, filling out, and signing professional legal documents. Whether you're a small business owner, freelancer, or simply someone who needs a reliable contract quickly, Loio helps you handle paperwork confidently in just a few minutes. The platform offers access to a library of 2,500+ customizable templates for business needs. Users can generate contracts by answering guided questions, fill out forms using a smart built-in PDF tool, and sign documents securely with Loio Sign — all in one place. It’s fast, intuitive, and designed for real-life business scenarios. All templates on Loio are created and reviewed by legal professionals to ensure accuracy and compliance with state laws. Whether you’re preparing a commercial lease agreement, service contract, NDA, or any other document, Loio gives you the tools to complete the process quickly and securely.Starting Price: $29.95 per month -
9
Lightkey
Lightkey
Take your typing to the next level using Lightkey’s AI-powered text predictions in applications you use every day. Lightkey’s AI-Powered word prediction software learns your typing patterns and gradually predicts up to 12 words including punctuation marks, allowing you to compose emails 4 times faster, with confidence. Lightkey’s AI-Powered spelling correction technology offers real-time suggestions for misspelled words. In addition to its built-in vocabularies, Lightkey will learn and offer spelling corrections based on your unique vocabulary. Lightkey includes over 60 content domains including technology, business, finance, law, academia, and more. Using its deep learning context analysis capabilities, Lightkey will offer you the most relevant terms. Lightkey natively supports MS Office Outlook, Word & PowerPoint and Google Chrome apps Gmail, WhatsAppWeb, LinkedIn Messenger, etc. Lightkey Anywhere and benefit from predictive text.Starting Price: $39.95 per year -
10
Sapling AI Writing Assistant
Sapling Intelligence
AI writing assistant for customer-facing teams. Sapling sits on top of CRMs and messaging platforms to help agents more efficiently compose personalized responses. Managers gain conversational insights to coach and prepare teams. Sapling provides functionality for autocomplete, spelling and grammar checking as well as snippets/canned messages/text expander. All services can be self-hosted, provided on-premise or cloud-premise to meet enterprise security and privacy requirements. Spelling and Grammar checking APIs allow users to integrate Sapling's language models into custom applications and use cases. Sapling Suggest retrieves relevant responses from a team knowledge bank and allows agents to respond more quickly to customer inquiries by simply clicking on the desired response. Empower agents instead of providing brittle, decision tree-based chatbots.Starting Price: $25 per month -
11
StyleWriter 4
Editor Software
StyleWriter will make you a better writer – we guarantee it. A bold claim we know, but that’s what our users tell us. Thousands of people download StyleWriter every month and use it to edit advertising copy, business reports, contracts, manuals, newsletters or web pages. Even professional journalists and novelists use the program to polish their writing style. StyleWriter is the best editing and proofreading software on the market. Designed by professional proofreaders, editors and experts in plain English, StyleWriter brings together the techniques used by the best writers to help you write in a clear, concise and readable style. All other proofreading and editing software aids are usually just overpriced spelling and grammar checkers and offer little more than what you already have in Microsoft Word. StyleWriter’s different. It shows you how to work like a professional editor. StyleWriter will show you how to simplify, cut and rewrite.Starting Price: $90 for lifetime use -
12
SCHEMA ST4
SCHEMA Group
The SCHEMA Group was established in Nuremberg in 1995 and is a medium-sized software manufacturer with more than 130 employees. The SCHEMA Group produces component content management and content delivery solutions for authoring departments creating product-related content. The SCHEMA ST4 component content management system is one of the most frequently used systems for the modularised creation of documentation, package inserts and marketing documentation. The system covers all areas of creation, versioning, variant control, translation, management and publication of product-related content – from authoring assistance during input to the finished layout for the printed catalog. A documentation portal based on Quanos InfoCube provides a central point of contact on the Internet where all technical documentation is available. Users can quickly and precisely find the right content in the entire information inventory with an easy-to-use search system. -
13
TextGears
TextGears
TextGears provides AI-empowered text spelling and grammar checking, paraphrasing and translation services. Available online. For companies, we provide an API and on-premise for integrating text analysis functions into any product. Supported languages: English, French, German, Portuguese, Russian, Italian, Arabic, Spanish, Japanese, Chinese and Greek.Starting Price: $4.90 -
14
OnlineCorrection.com
Maklabu
OnlineCorrection.com finds and highlights spelling errors, as well as many basic grammar and style mistakes, in English texts, and offers suggestions for improvement. When there are two or more correct options, you are prompted to choose one of them. Finding every error in a text is difficult, even for a professional proofreader. Computers are very good at finding spelling mistakes and can often pick up other kinds of errors. However, without a real understanding of the text, it is impossible for a program to discover all grammatical, stylistic, diction and factual errors. Therefore, especially for important texts, we recommend that you not rely exclusively on this (or any) tool, but use a professional editor or proofreader to ensure that your document is as good as it can be. -
15
Heretto
Heretto
Heretto is the ultimate content operations platform for customer-driven companies. Our cutting-edge CCMS, Deploy API, and Portal toolset empowers users to independently resolve product issues, streamlining support and elevating customer experiences. Effortlessly create, distribute, and personalize documentation for exceptional content experiences across all touchpoints all on one cloud-based platform. From the blank page to fully personalized help sites, Heretto's intuitive interface ensures swift content deployment and seamless collaboration for enterprise organizations. Stay ahead in the digital landscape and deliver content that delights modern customers with Heretto's unrivaled capabilities. -
16
Slick Write
RussTek
Slick Write is a powerful, free application that makes it easy to check your writing for grammar errors, potential stylistic mistakes, and other features of interest. Whether you're a blogger, novelist, SEO professional, or student writing an essay for school, Slick Write can help take your writing to the next level. Curious? See why Slick Write is the best. The job market is competitive. Gain an advantage, impress employers, and land more interviews by demonstrating professionalism and superior communication skills on your resumé. English is a difficult language, so using correct grammar and diverse vocabulary will set you apart from the crowd. Using good sentence structure and wording improves your content's impact and readability while building your readers' trust. -
17
Mike DocReview
Mikelegal
AI-powered MS Word add-ins that helps you proofread and format legal documents up to 75% faster. Mike DocuSieve is an AI-powered MS Word add-in built by the collaboration of lawyers and engineers. It proofreads contracts & agreements as you draft and reduces the time spent on proofreading by more than 70%. Each line is scanned individually and any spacing not in sync with the input setting is detected as an error. Set personalized heading styles in settings and fix all the headings in one click without spending time correcting each one. Set and correct paragraph styles with fonts and font size using settings. It also detects any inconsistencies and reports them as errors. Get the freedom to format a schedule that is different from the main agreement. Make your draft stand out from standard legal documents. Get the flexibility to create your own unique type of numbering format. -
18
Typely
typely.com
Typely is more than just a proofreading tool. It's a complete writing environment. More than a thousand checks are being performed and we've only scratched the surface. Gain access to humanity’s collective understanding about the craft of writing. Typely is precise. Existing tools for proofreading raise so many false alarms that their advice cannot be trusted. Instead, the writer must carefully consider whether to accept or reject each change. We aim for a tool so precise that it becomes possible to unquestioningly adopt its recommendations and still come out ahead — with stronger, tighter prose. Better to be quiet and authoritative than loud and unreliable. Writing presumes more than simply laying out words on a paper. Typely helps you get in the mood and keeps you focused, immersed and ready to write your story. Whether you need a distraction-free environment, some chill relaxing sounds or a pomodoro timer to manage your time we got you covered. -
19
After the Deadline
Automattic
After the Deadline is an intelligent language checking server, made to scale. This page hosts the source code and resources released under the GNU General Public License. If you want to embed After the Deadline into an application, visit the After the Deadline Developers page to find useful libraries that interact with this service. -
20
Proofread Bot
Proofread Bot
Proofread Bot provides a rest server that can return the report in several formats from json to xmlrpc. For a sample live client implementation take a look at the Wordpress plugin. -
21
WhiteSmoke
WhiteSmoke
WhiteSmoke Writing Solution. We produce an all-in-one English writing tool that provides grammar, spelling, punctuation and style checks. Our software is activated in a single click from any text application and browser, pointing out potential errors for consideration and offering suggestions for improvement. We believe that users that have little or no experience with WhiteSmoke software can use our solution to quickly begin writing, editing, translating and enhancing their English documents. WhiteSmoke renders you with the highest quality proofreading abilities available, correcting not only simple spelling mistakes like old-fashioned word processors but everything from grammar, word choices and even style mistakes, all without breaking a sweat. Grammar plays an important role in what kind of impression you give.Starting Price: $6.59/month/user
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