10 Best AI Essay Grader For Teachers Free & Paid

May 28, 2024

Are you a teacher looking for tools to help you grade student essays efficiently and effectively? Essay Grader for teachers free tools can save time and simplify grading. With so many options available, how do you find the best one? Today, we're diving into the best free essay grader tools for teachers. Let's get started.

What Are AI Essay Graders?

person making notes of results - Essay Grader For Teachers Free

AI essay graders are advanced software applications that evaluate and score written essays. These systems utilize natural language processing (NLP) and machine learning algorithms to assess various aspects of writing, such as grammar, coherence, structure, style, and content relevance. These AI graders can efficiently analyze essays for grammar, punctuation, spelling, coherence, clarity, and writing style errors, providing detailed reports of the identified errors and suggestions on how to correct them. 

Using customizable rubrics, these AI essay graders offer consistent and unbiased grading while providing immediate feedback to teachers and students. These AI graders can seamlessly integrate with Learning Management Systems, streamlining the essay grading process, saving teachers time, and providing valuable feedback to students, enhancing the educational experience for all.

How Do AI Essay Graders Work?

AI essay graders use advanced machine learning algorithms to automatically assess and evaluate student essays. These automated grading systems analyze various aspects of the essays, including grammar, punctuation, spelling, coherence, clarity, and writing style. Here is an overview of how AI essay graders work based on the information from the sources

Machine Learning Algorithms

AI essay graders use sophisticated machine learning algorithms to process and analyze the content of student essays.

Assessment of Writing Quality

These systems assess the quality of writing by evaluating factors such as grammar, punctuation, spelling errors, coherence, and clarity in the essays.

Instant Feedback

AI essay graders provide instant feedback to both teachers and students, offering insights and suggestions for improvement in real-time.

Consistent and Unbiased Grading

By leveraging AI technology, these grading systems ensure consistent and unbiased grading across various subjects and topics.

Customizable Rubrics

Some AI essay graders offer customizable rubrics, allowing educators to tailor the grading criteria to align with specific teaching methodologies and learning objectives.

Integration with Learning Management Systems

Many AI essay graders seamlessly integrate with Learning Management Systems like Canvas, providing educators with efficient and streamlined grading processes

AI Essay Grader

EssayGrader is the most accurate AI grading platform trusted by 30,000+ educators worldwide. On average it takes a teacher 10 minutes to grade a single essay, with EssayGrader that time is cut down to 30 seconds That's a 95% reduction in the time it takes to grade an essay, with the same results. 

With EssayGrader, Teachers can:

  • Replicate their grading rubrics (so AI doesn't have to do the guesswork to set the grading criteria)
  • Setup fully custom rubrics
  • Grade essays by class
  • Bulk upload of essays
  • Use our AI detector to catch essays written by AI
  • Summarize essays with our Essay summarizer 

Primary school, high school, and even college professors grade their students' essays with the help of our AI tool. Over half a million essays were graded by 30,000+ teachers on our platform. Save 95% of your time for grading school work with our tool to get high-quality, specific and accurate writing feedback for essays in seconds. 

Get started for free today!

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Why use An AI Essay Grader

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1. Streamline Grading Process

AI essay graders significantly reduce grading time, often by over 60%. This increase in efficiency allows teachers to allocate more time toward lesson planning and student interaction.

2. Provide Unbiased Feedback

These tools minimize personal bias, ensuring fairness in grading. AI graders maintain a high level of consistency in assessments across all student essays. 

3. Enhance Feedback Quality

They pinpoint grammatical and syntactic errors in detail, provide constructive suggestions to improve student writing, and detect plagiarism, enhancing student learning and accountability.

4. Scale for Large Classes

AI essay graders efficiently handle large volumes of essays without compromising assessment quality. This makes them ideal for teachers managing multiple classes or large student groups.

5. Empower Teachers with More Teaching Time

These tools enable teachers to spend more time on interactive teaching and personalized guidance, allowing a shift towards more engaging and innovative teaching strategies.

10 Best AI Essay Graders for Teachers Free & Paid

professor exploring Essay Grader For Teachers Free

1. EssayGrader

EssayGrader is the most accurate AI grading platform trusted by 30,000+ educators worldwide. On average, it takes a teacher 10 minutes to grade a single essay, but with EssayGrader, that time is reduced to 30 seconds – a 95% decrease in grading time with the same results. Teachers can replicate their grading rubrics, set up custom rubrics, grade essays by class, bulk upload essays, use the AI detector to catch essays written by AI, and summarize essays with the Essay summarizer feature. It is a valuable tool for primary school, high school, and college professors.


  • AI – powered feedback for accurate evaluation
  • Comprehensive error detection for various writing aspects
  • Efficient bulk uploading for grading multiple essays at once
  • Custom rubrics creation to align with specific grading criteria
  • Summarizer feature to generate concise summaries from lengthy essays
  • AI content detector to identify artificially generated content

2. Gradescope

Gradescope is a leading AI grader known for its ability to automate grading processes and support rubric-based assessment. It streamlines the grading workflow for educators, providing quick and accurate assessments based on predefined criteria.


  • AI-Powered Grading: Automates the grading of assignments to save teachers significant time and effort.
  • Rubric-Based Assessment: Allows instructors to provide detailed feedback to students based on predefined criteria.
  • Team Grading: Facilitates collaboration among instructors to ensure consistency and fairness in grading.
  • Analytics Tools: Provides insights into student performance, helping teachers identify trends and areas for improvement.

3. Turnitin Feedback Studio

Turnitin Feedback Studio is renowned for its dual functionality in enhancing grading processes and detecting plagiarism. It offers educators a comprehensive platform for evaluating student work, ensuring academic integrity through advanced plagiarism detection algorithms.


  • Robust Plagiarism Detection: Swiftly and accurately identifies instances of academic dishonesty, ensuring academic integrity.
  • Feedback Customization: Offers extensive options for instructors to tailor comments to individual student needs and specific assignment criteria.
  • Peer Review: Facilitates peer review activities, enabling collaborative learning environments where students can provide constructive feedback to each other.

4. CoGrader

CoGrader stands out for its versatility in general grading and feedback provision. It aids educators in efficiently assessing student work, offering instant feedback, and enhancing student performance through personalized grading criteria.


  • Google Classroom Integration: Simplifies grading by seamlessly integrating with Google Classroom for easy import and export of assignments.
  • AI-Driven Feedback: Instantly delivers initial feedback on assignments, enhancing feedback quality and relevance.
  • Efficient Grading Process: Automates grading, reducing time spent and ensuring fairness by removing biases.
  • Customizable Criteria: Offers customizable grading rubrics to meet various educational standards and objectives.
  • Class Analytics: Provides insights into student performance to help tailor teaching strategies​

5. AI For Teachers

AI For Teachers is a valuable resource for educators, especially ChatGPT Plus users, offering a range of free AI grading tools. It provides customizable AI bots, automated feedback mechanisms, and seamless integration with ChatGPT for interactive learning experiences.


  • Free for ChatGPT Plus Users: Completely free access for ChatGPT Plus users, providing exceptional value without additional cost.
  • Integration with ChatGPT: Seamlessly incorporates ChatGPT’s capabilities to assist teachers in creating interactive learning experiences.
  • Customizable AI Bots: Allows educators to tailor AI bots for specific classroom needs, enhancing student engagement and learning outcomes.
  • Automated Feedback: Provides automated, instant feedback on student submissions, helping to improve learning efficiency and understanding.

6. Smodin

Smodin is recognized for its ability to automate grading processes and grade assignments in multiple languages, catering to diverse student populations. It streamlines the grading workflow, significantly reducing the time educators spend on marking assignments.


  • AI-Powered Writing Assistance: Smodin offers tools for rewriting, plagiarism detection, summarizing, and AI writing, making it suitable for students, teachers, and content creators.
  • Multilingual Support: It supports multiple languages, providing grammar correction and translation services.
  • Integration with Tools: Smodin integrates with several useful tools like plagiarism and paraphrase generators, citation generators, and more.

7. GradeCam

GradeCam is a tool designed to streamline grading processes and provide instant feedback to educators. It enhances efficiency in assessment procedures, offering educators valuable insights into student performance and progress.


  • Quick Scanning and Grading: Ability to quickly scan and grade paper tests, significantly saving time and effort for teachers.
  • Instant Feedback: Provides timely feedback to students, which is crucial for their immediate learning adjustments.
  • Analytics Tools: Offers tools that give valuable insights into student progress and areas for improvement, supporting data-driven instructional decisions.

8. SnapGrader

SnapGrader is focused on providing instant feedback and grading analytics to educators. It empowers teachers with valuable insights into student performance, aiding in the assessment and improvement of student work.


  • Scanning Capabilities: Allows teachers to quickly digitize paper tests and quizzes, eliminating manual data entry.
  • Instant Feedback: Provides timely feedback to students on their performance, aiding their learning process.
  • Grading Analytics: Offers insights into grading accuracy and consistency, ensuring high standards of assessment.
  • Support for Various Question Formats: Accommodates multiple-choice and short-answer questions, enhancing its versatility for different assessment types.

9. Quillbots AI Essay Checker

Quillbots AI Essay Checker is a free tool that aids in grading essays, offering educators a convenient and accessible solution for assessing student work effectively


  • Finds grammar and spelling errors: QuillBot’s AI Essay Checker can catch mistakes in your writing, making sure your work is error-free.
  • Provides real-time correction suggestions: Get instant feedback on how to improve your writing as you type, helping you to write with more accuracy.
  • Converts between different English dialects: Easily switch between US and UK English, ensuring that your essay follows the correct language style.
  • Offers paraphrasing tool for alternative wording: Use the Paraphrase Text button to find different ways of expressing yourself, making your essay more diverse and engaging.

10. Groovy Grader is a popular iOS app designed to simplify the grading process for educators

It offers a user-friendly interface and several features that make grading more efficient than using traditional paper-based methods.


  • Ability to view up to 50 grades on the screen at once, reducing the need for scrolling
  • Option to display grades as whole numbers or with one decimal place
  • Flexibility to show the number of correct answers, incorrect answers, or both
  • Customizable settings to suit individual preferences
  • Optimization for iOS 12 and compatibility with iPhones, iPods, and iPads

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7 Key Considerations For Teachers When Choosing An Essay Grader

person testing out Essay Grader For Teachers Free

1. Accuracy and Reliability

When selecting an AI essay grader, it is crucial to consider the tool's accuracy and reliability. A reliable essay grader should have a proven track record of providing accurate and consistent feedback on student essays. Look for tools that utilize advanced algorithms and natural language processing to analyze essays' content, structure, and quality.

2. User-Friendly Interface

A user-friendly interface is essential when choosing an AI essay grader. Having an intuitive and easy-to-use interface makes the tool accessible for teachers of all technical skill levels. A well-designed interface can significantly enhance the overall user experience and efficiency.

3. Integration with Learning Management Systems (LMS)

Seamlessly integrating an AI essay grader with your existing Learning Management System (LMS) is crucial for streamlining the grading workflow. Choose a tool that can be easily integrated with your school's LMS, reducing the need for manual data transfer and ensuring a smooth grading process.

4. Customizable Rubrics

Creating and customizing grading rubrics is essential for ensuring consistency and alignment with your teaching objectives. Look for AI essay graders that offer flexible rubric creation tools, allowing you to tailor the grading criteria to your specific needs.

5. Feedback Quality and Specificity

Select an AI essay grader that provides students with high-quality, specific, and actionable feedback. Detailed feedback helps students understand their strengths, weaknesses, and areas for improvement, ultimately enhancing their writing skills.

6. Scalability and Efficiency

Consider an AI essay grader's scalability and efficiency when selecting. Look for tools that can handle a large volume of essays efficiently. Features like bulk uploading can save time by allowing you to grade multiple essays simultaneously.

7. Cost and Pricing Structure

Evaluate the pricing structure of the AI essay grader and ensure it aligns with your budget and the needs of your school or district. Some tools may offer free trials or tiered pricing plans, allowing you to choose the most suitable option for your specific requirements.

Save Time While Grading Schoolwork — Join 30,000+ Educators Worldwide & Use EssayGrader AI, The Original AI Essay Grader

Grading essays can be time-consuming and tedious. EssayGrader has revolutionized the process and has become the go-to tool for educators worldwide. With a significantly reduced grading time, teachers can now grade essays more efficiently and effectively than ever before. Teachers can ensure that all essays are graded consistently and fairly by replicating grading rubrics. The AI detector is a powerful tool that can catch essays written by AI, ensuring the integrity of the grading process. 

With EssayGrader, teachers can now grade essays by class, making it easier to manage and organize grading assignments. The bulk upload feature enables teachers to grade multiple essays simultaneously, enhancing productivity. Overall, EssayGrader has proven to be an indispensable tool for educators, helping them save time and achieve accurate results in grading essays. 

With over half a million essays graded by 30,000+ teachers, EssayGrader is a trusted platform that continues to impact the education sector significantly.

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