Search and filter for AI-Products

Quick Specs Core Function: Paraphrasing & Fluency Modes: 7 (Standard, Fluency, Creative, etc.) Key UI: Synonym Slider (Adjust vocabulary) Extensions: Chrome, Word, macOS QuillBot is the "white hat" of the industry. While StealthWriter and Undetectable.ai market themselves on evasion, QuillBot markets itself on fluency. It's a paraphraser first, and a humanizer second. Its iconic feature is the Synonym Slider, a UI element that lets users control the "vocabulary variation" in real-time. It offers 7 distinct modes: Standard: Balances reliable rewriting. Fluency: Fixes grammar (great for ESL). Creative: Takes risks (good for uniqueness). Academic: More formal vocabulary. Unlike others that hide the magic, QuillBot shows you exactly what changed—orange highlights mark every alteration—and lets you click any word to see a dropdown of alternative synonyms. What We Found Testing It The "Slider" Joy This is the best UI feature in the entire market. Being able to slide from "Standard" (safe) to "Creative" (risky) and watch the text morph in real-time gave us a sense of control that "one-click" tools lack. It felt like writing, not just generating. The Detection Fail We ran its output through GPTZero. Standard Mode: 98% AI. Creative Mode: 94% AI. Analysis: QuillBot cleans up grammar beautifully, but it doesn't break the underlying token patterns that deep detectors look for. If your goal is to beat Turnitin, QuillBot alone is insufficient. The "Academic" Mode We tested this on a casual blog post. It successfully elevated the tone from "dude blogger" to "undergrad student." It swapped "talk about" for "discuss," "big" for "significant." It's the best tool for upgrading the register of your writing. What Makes It Special User Agency. Most AI tools treat you like a dummy—push button, get text. QuillBot treats you like an editor. You choose the synonyms. You freeze the quotes. You control the outcome. Where It Truly Shines ESL Students. If English is your second language, QuillBot is indispensable. It fixes awkward idioms and preposition errors better than Grammarly. The "Polishing" Phase. Use it after you have beaten the detector with another tool (like StealthWriter). The other tool makes it undetectable (but ugly); QuillBot makes it readable again. The Learning Curve Moment The "Thesaurus abuse" Trap. We learned that cranking the slider to the max makes you sound like Joey from Friends using a thesaurus. "The bottom line" became "The underside line." We realized we had to use the slider with restraint. The Real-World Workflow We generated text with ChatGPT. We humanized it with StealthWriter (Score: 0% AI, Readability: Bad). We polished it with QuillBot (Score: 10% AI, Readability: Good). We submitted the result. What You'll Actually Get Out of It Better Prose. You will write better sentences. You won't necessarily fool the police, but you will impress the judge. The Bottom Line QuillBot is for Writers, Not Cheaters. It's the best paraphraser on Earth, but it's not a "cloaking device." Use it to improve quality, not to hide origins.