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5 Awesome AI Text Summarizer Tools to Summarize Text Accurately

Text summarization is a need that can rise for anyone, whether in the academic field or professional setting. In the past, summarizing text used to be done manually, taking significant time. However, the boom of AI tools has also modernized the text summarization process. Now we can use any AI text summarizer tool to summarize text/paragraphs autonomously and instantly. But not all AI paragraph summarizer tools provide the same quality summaries.

So, if you are intending to use the AI summarizer tool, then this article is for you. Here we will discuss in detail the five best text summarizer tools, such as UPDF, ChatGPT, Quillbot, and more. In the end, we will present a comparison table that will help you pick the best tool that aligns with your needs.

5 Best AI Text Summarizer Tools

Looking at plenty of AI text summarizer tools available today, we have shortlisted the five best tools that claim to do the job proficiently. To validate their accuracy, we will input the same content to each of them and see how accurate their summaries are. So, let's get started!


UPDF AI is the first in our list and the most powerful AI summarizer tool. It serves as a one-stop tool where you can summarize text/paragraphs directly from documents or use its AI chat box to process specific text/paragraphs. This implies that you can ask UPDF AI to summarize the whole document at once or input a few paragraphs and get the required summary.

What makes UPDF AI the best text summarizer tool is its convenient way of uploading documents for analyzing and direct summarization capabilities while reading documents. Available on Windows, Mac, iOS, and Android it provides a click-based interface to get the job done easily. Besides summarizing, it allows you to translate, explain, or write/rewrite texts and can even execute human-like conversations.

UPDF AI summarizes the whole PDF at once after uploading, which is super-fast. Dive into document summarization. Download UPDF today!

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Note: UPDF AI only provides a summary of the uploaded PDF once. To re-summarize the whole PDF, you have to copy and paste the content into the chatbox. However, you can ask it to polish the generated summary.

Afterward, we input a few paragraphs and asked it to provide a summary. It quickly provided us with a bullet point-based summary of the paragraphs.

A more convenient method is to select the text in PDF, and then choose the UPDF AI tool, and then click on the "Summarize" icon on the pop-up menu. This is also a great way to save your time. You can even put the summarized text like a note directly.

Overall, UPDF has managed to fulfill all our requests perfectly and instantly.


  • Directly summarize the whole document content at once.
  • Accurate summarization of texts/paragraphs in easy-to-digest bullet points.
  • Summarize in various languages, including English, Chinese, Korean, Japanese, German, Italian, etc.
  • Instant results.
  • Offers additional features, i.e., translating in multiple languages, explaining, writing/rewriting, checking grammar/spelling, ideating, etc.
  • Compatibility with Windows, Mac, iOS, and Android.
  • Offers free trial and cost-effective paid plans.
  • UPDF AI has an unlimited plan to resolve more requests.


  • No web version available
  • Free plan is limited to 100 pages per file.

In short, UPDF AI is one comprehensive AI text summarizer tool that incorporates all the advanced features and capabilities we need to summarize any size and type of content. UPDF avails a special discount now for the upgrade to UPDF Pro. Don't let this chance slip away!

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Also Read: Top 10 PDF Text Summarizers

2. ChatGPT

Next on our list is the most talked about tool today, the ChatGPT. Since its launch in November 2022, ChatGPT has quickly grabbed a massive user base. Users like its ability to answer almost any question related to any field or industry. Owing to that, it also serves as an AI that summarizes text.

Other than its free version, ChatGPT also comes with a paid plan called ChatGPT Plus. It claims to offer more concise, accurate responses based on GPT-4. However, since most ChatGPT users are using its free version, we will test its summarization accuracy in its free version.

We input the same set of paragraphs in ChatGPT that we used for UPDF and asked it to summarize this text. The response took a few extra seconds compared to UPDF, but the summary quality was top-notch. However, it provided the summary in a lengthy paragraph form.

To reduce the length of the summary and get it in bullet points, we further asked ChatGPT to "summarize in brief bullet point". Now we got a much better version of the summary that was brief and to the point.


  • Can provide summary no matter the content complexity.
  • User-friendly approach.


  • Requires additional commands to provide the required summary results.
  • Limited word count in the free version with no option to upload documents.
  • Not a dedicated tool to summarize text/paragraphs.
  • Can take time for initial replies.
  • Expensive paid plan.

In short, ChatGPT is another useful AI paragraph summarizer, but it might require a few additional commands to provide the required results.

3. QuillBot

QuillBot is another AI-powered text summarizer and paraphrasing tool. It provides a simple web-based interface for summarizing text/paragraphs or even uploading the file for summarizing. Its AI-powered system uses natural language processing to extract key points from the text and then present them instantly in a compact and easy-to-understand format.

QuillBot provides two modes to summarize, i.e., key sentences and the paragraph modes. The key sentences mode will provide bullet points of the most important sentences, while the paragraph mode will provide key information in paragraph form.

We will test QuillBot in two ways, just like we did for UPDF. We started with testing its ability to summarize the whole PDF document. So, we uploaded the document but discovered that we can only summarize 1200 words in the free plan. So, we reduced the word count to 1200 and let it summarize in the "key sentences" format. It provided the summary, but the quality wasn't impressive. It looks like the copy-paste of key phrases in the content.

Afterward, we asked it to summarize a few paragraphs. The results were similar to the above one. It is summarizing text by providing a copy-paste of key points from the main text.


  • Allows to adjust the summary length.
  • Two summary modes, i.e., bullet points of key sentences or paragraphs of key points.
  • Can summarize the whole document at once.
  • Offers additional features, i.e., paraphrasing, grammar checking, detecting plagiarism, translating, etc.


  • Copy and paste key points in the summary.
  • Does not provide an AI chat box to customize summarization further.
  • Only 1200 words free summary in the free plan.
  • Costly premium plans.

In short, QuillBot is another easy-to-use AI that summarizes text but lacks to provide intelligent AI-written summaries.


Summarizer is another text summarizer tool that also provides a web-based interface to provide summaries of documents or specific paragraphs. All you have to do is upload or paste the content you want to summarize and specify the summary length. Afterward, Summarizer will provide the required summary right away.

Unlike other tools, Summarizer only supports summarizing text. It offers no other features like paraphrasing, grammar checking, translating, etc. So, if the tool is dedicated to summarizing text, it must offer exceptional results.

We begin our test by uploading the same PDF document to get the summary of the whole content. The results were similar to QuillBot, as it only provides copy-paste versions instead of AI-generated content. However, the summary quality looks poor, as it was turning all sentences to bullet points instead of emphasizing the key points only.

Afterward, we tested it again with a few paragraphs and again received disappointing results. It fails to analyze and detect key points and just tries to include all sentences as bullet points in the summary.


  • Allows to manually set the summary length.
  • Can summarize the whole document at once.
  • Completely free tool.
  • Supports multiple languages, including English, Spanish, Indonesian, Portuguese, French, and Dutch.


  • Lack of additional features, like translation, grammar check, rewriting, etc.
  • Low-quality summaries.
  • Does not provide an AI chat box to customize summarization further.
  • Summary length feature often malfunctions.

In short, Summarizer is best suited if you are looking for a completely free tool that can turn the content into bullet points while preserving most of the content.


Last on our list of the best text summarizer tools is Paraphraser, a web-based paragraph summarizer tool that provides a similar interface we get with Summarizer and QuillBot. However, it provides two summarization modes, i.e., summarizer and AI summarizer.

The summarizer mode is not powered by AI and provides more like a copy-paste version of the text. In contrast, the AI summarizer mode provides an AI-powered summary after analyzing the text and extracting the key points.

Since we are looking for the best AI paragraph summarizer tools, we will evaluate Paraphraser's AI summarizer capabilities to check its authenticity. To start with, we uploaded the PDF document to get its summary in the AI summarizer mode. However, it showed the error message of 1500 words limit. So, we reduced the word count and then processed the summary. The output was available in both paragraph and bullet form, while the summary quality was much better and highlighted the document's key points.

Next, we input a few paragraphs and let Paraphraser summarize this text. The output was again AI-powered and reliable, but the quality could have been better.


  • Dual summary modes.
  • Manually set the summary length.
  • Can summarize whole documents.
  • Supports multiple languages, including English, Spanish, Indonesian, Portuguese, French, Dutch, and more.
  • Offers additional features, i.e., rewriting, plagiarism checking, grammar checking, etc.


  • Expensive paid plans.
  • Errors in summary.
  • Does not provide an AI chat box to customize summarization further.
  • 1500 words limit in the free plan.

In short, Paraphraser is a trustworthy AI summarizer tool that can provide web-based summaries of texts in different languages.

Comparison Table Between Best AI Text Summarizer Tools

Summary Customization
Summary Modes: Paragraphs & Bullets
Ease of Use
Summarize Documents (PDF, Word, Excel)
Chat Box
Summary QualityHighHighPoorPoorMedium
Word Count Limit in the free planNo limit3000 words1200 wordsNo limit1500 words
PricingUS$9/month, US$59/year; free trial providedUS$20/monthUS$4.17/month (billed annually)FreeUS$5/month (billed annually)
Response TimeFastFast (Occasionally slow)FastFastFast
CompatibilityWindows, Mac, iOS, AndroidWindows & MacWeb-basedWeb-basedWeb-based

Wrapping Up

AI text summarizer tools have made it a lot easier to summarize any length and type of content. The above five AI summarizer tools can all help in summarizing texts seamlessly. Out of all of them, UPDF AI does shine as the best text summarizer tool. Whether it is its in-depth and high-quality summaries of whole documents (or selective paragraphs) or its resourceful chat box, UPDF AI is an all-in-one tool to summarize content in the best way possible. So, if you want to avoid exploring all AI paragraph summarizer tools, then UPDF is the best choice. You can also find an unbiased review of UPDF on the TECH COMMUTERS website.

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