What is QuillBot?

Content last verified May 4, 2026 · by the AI Tools Set Research Team

QuillBot is a hugely popular writing platform best known for its paraphrasing tool, along with grammar checking, summarizing, and a citation generator. Students use it to rewrite and improve essays, fix grammar, and condense sources.

With modes for clarity, formality, and length, plus plagiarism checking on paid plans, it is a versatile companion for polishing academic writing.

Key Features of QuillBot

Paraphraser: Rewrite text in multiple modes.
Grammar checker: Fix errors and improve clarity.
Summarizer: Condense long sources.
Citation generator: Create references quickly.

Use Cases for QuillBot

Paraphrase essays
Check grammar
Summarize sources
Generate citations
Improve writing clarity

Pros & Cons

Pros

✓

Excellent paraphraser

✓

Multiple useful tools

✓

Widely trusted

✓

Free tier

Cons

✗

Best modes on paid

✗

Rewriting needs review

Pricing

Free

$0 /mo

✓Paraphraser basics

✓Grammar check

✓125-word summarizer