Paraphraser.io vs QuillBot

An in-depth comparison of two AI writing tools — features, pricing, and which one to choose.

Last updated: March 1, 2026

Paraphraser.io

Free AI paraphrasing tool for rewording

4.1(89 reviews)

paid

QuillBot

AI tool for paraphrasing, summarizing, and enhancing writing

4.7(389 reviews)

freemium

Our Verdict

QuillBot is generally considered the superior paraphrasing tool with more modes, better quality, and a grammar checker built in. Paraphraser.io offers a straightforward free interface. Power users should choose QuillBot; casual paraphrasers can use Paraphraser.io.

Quick Comparison

Metric	Paraphraser.io	QuillBot
Rating	4.1 / 5 4.1	4.7 / 5 4.7 Winner
Reviews	89	389More Reviews
Pricing	From $23/mo	From $8.33/mo
Users	10K+	10K+
Category	Text Processing	Text Processing
Released	2023	2017

Key Features

Paraphraser.io

AI paraphraser with fluency, standard, creative, and formal rewriting modes
Article summarizer that condenses long content to key points automatically
Grammar checker for identifying and correcting errors in rewritten content
Plagiarism checker comparing content against 100M+ web pages for uniqueness
Word changer for targeted synonym replacement within selected text segments
100-character to 10,000-word input support across all paraphrasing modes
Multi-language support for paraphrasing in English, Spanish, French, and more
Free tier with no account required — immediately accessible for quick tasks

QuillBot

AI paraphraser with 9 writing modes: Standard, Fluency, Formal, Creative, and more
Grammar checker with real-time error detection and fix suggestions
Summarizer that condenses articles, papers, and documents to key points
Citation generator supporting APA, MLA, Chicago, and Harvard citation formats
Plagiarism checker integrated directly within the paraphrasing workflow
Translator supporting 30+ language pairs with context-aware translation
AI detector to verify the authenticity of text submitted for review
Chrome extension for QuillBot assistance in Google Docs, Gmail, and any browser text field

Pros & Cons

Paraphraser.io

Pros

Generous free tier available without account creation — instantly useful for short tasks
Full academic toolset including paraphrase, summarize, grammar, and plagiarism check
Large input capacity (10,000 words) handles long documents in a single paraphrase session
Multi-language paraphrasing supports non-English content workflows effectively
Affordable Pro plan at $20/month includes all features with unlimited word processing

Cons

Output quality on Creative mode can produce awkward or overly altered phrasing
Free tier word limits per session are restrictive for professional daily usage
Plagiarism checker database is smaller than Grammarly's 16B page comparison set

QuillBot

Pros

Best paraphrasing modes in the market — Fluency mode produces the most natural rewrites
Free plan includes paraphrasing up to 125 words — useful for quick rewriting tasks
Academic suite covering citation, plagiarism, and summarization in one subscription
Chrome extension integrates QuillBot into existing writing environments seamlessly
Summarizer significantly reduces time spent reading long research documents

Cons

Free plan is limited to 125 words per paraphrase — insufficient for longer content
Premium required for unlimited paraphrasing, plagiarism checker, and all modes
Grammar checker is less comprehensive than Grammarly for advanced style suggestions

Best For

Paraphraser.io

Academic paraphrasingAvoiding plagiarismContent rewritingESL writersQuick text rephrasing

QuillBot

Academic writing and essaysContent rewriting and rephrasingGrammar and clarity improvementAvoiding plagiarismESL writers improving English

Pricing Plans

Paraphraser.io

Silver$23/monthly

Give a fresh perspective to your text and make it unique

Gold$40/monthly

Leverage AI to transform ordinary content into extraordinary

Diamond$499/monthly

Create writing masterpieces and impress your readers

QuillBot

Free$0/monthly

Limited access to writing tools

Premium$19.95/yearly

Unlimited access to all tools (or $19.95/month monthly)

Related Comparisons

Grammarly vs QuillBot Notion AI vs QuillBot

Full review

Paraphraser.io

Full review

QuillBot

Metric

Paraphraser.io

QuillBot

Rating

4.1 / 5

4.1

4.7 / 5

4.7

Winner

Reviews

389More Reviews

Pricing

From $23/mo

From $8.33/mo

Users

10K+

Paraphraser.io

AI paraphraser with fluency, standard, creative, and formal rewriting modes
Article summarizer that condenses long content to key points automatically
Grammar checker for identifying and correcting errors in rewritten content
Plagiarism checker comparing content against 100M+ web pages for uniqueness
Word changer for targeted synonym replacement within selected text segments
100-character to 10,000-word input support across all paraphrasing modes
Multi-language support for paraphrasing in English, Spanish, French, and more
Free tier with no account required — immediately accessible for quick tasks

QuillBot

AI paraphraser with 9 writing modes: Standard, Fluency, Formal, Creative, and more
Grammar checker with real-time error detection and fix suggestions
Summarizer that condenses articles, papers, and documents to key points
Citation generator supporting APA, MLA, Chicago, and Harvard citation formats
Plagiarism checker integrated directly within the paraphrasing workflow
Translator supporting 30+ language pairs with context-aware translation
AI detector to verify the authenticity of text submitted for review
Chrome extension for QuillBot assistance in Google Docs, Gmail, and any browser text field

Pros & Cons

Paraphraser.io

Pros

Generous free tier available without account creation — instantly useful for short tasks
Full academic toolset including paraphrase, summarize, grammar, and plagiarism check
Large input capacity (10,000 words) handles long documents in a single paraphrase session
Multi-language paraphrasing supports non-English content workflows effectively
Affordable Pro plan at $20/month includes all features with unlimited word processing

Cons

Output quality on Creative mode can produce awkward or overly altered phrasing
Free tier word limits per session are restrictive for professional daily usage
Plagiarism checker database is smaller than Grammarly's 16B page comparison set

QuillBot

Pros

Best paraphrasing modes in the market — Fluency mode produces the most natural rewrites
Free plan includes paraphrasing up to 125 words — useful for quick rewriting tasks
Academic suite covering citation, plagiarism, and summarization in one subscription
Chrome extension integrates QuillBot into existing writing environments seamlessly
Summarizer significantly reduces time spent reading long research documents

Cons

Free plan is limited to 125 words per paraphrase — insufficient for longer content
Premium required for unlimited paraphrasing, plagiarism checker, and all modes
Grammar checker is less comprehensive than Grammarly for advanced style suggestions

Pricing Plans

Paraphraser.io

Silver$23/monthly

Give a fresh perspective to your text and make it unique

Gold$40/monthly

Leverage AI to transform ordinary content into extraordinary

Diamond$499/monthly

Create writing masterpieces and impress your readers

QuillBot

Free$0/monthly

Limited access to writing tools

Premium$19.95/yearly

Unlimited access to all tools (or $19.95/month monthly)