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Parallax

Extension Actions

How to install Open in Chrome Web Store
CRX ID
nlabbfjnjgfjkdofpgefkpblnmomeanl
Status
  • Extension status: In-App Purchases
Description from extension meta

Real-time epistemic annotation — detect rhetorical framing, selective evidence, and persuasion techniques in any content.

Image from store
Parallax
Description from store

Read the bias. Write without it.

Parallax is a critical reading tool that detects rhetorical framing, logical fallacies, and persuasion techniques in anything you read or watch online. Click the icon on any article or YouTube video, and Parallax scans the content in seconds — highlighting exactly where and how the author is shaping your perception.

This is not a political bias detector. Parallax identifies specific epistemic techniques that bypass critical thinking, regardless of which side they come from.

What Parallax detects:

Parallax identifies 26 rhetorical techniques across five categories:

Framing: Selective Framing, Omission of Context, Oversimplification
Evidence Manipulation: Cherry-Picked Evidence, Anecdotal Evidence
Rhetorical Devices: Loaded Language, Appeal to Emotion, Motte and Bailey, Bandwagon Effect, Gish Gallop
Logical Fallacies: False Equivalence, Appeal to Authority, Straw Man, Ad Hominem, Red Herring, Slippery Slope, Hasty Generalisation, Circular Reasoning, False Dichotomy, Moving the Goalposts, Whataboutism, Appeal to Nature
Cognitive Biases: Anchoring, Survivorship Bias, Availability Heuristic, Confirmation Bias

Each detection includes a confidence rating, a detailed explanation of why the passage may mislead, a counterargument with specific missing context, and academic sources you can verify yourself.

How it works:

1. Navigate to any article, news story, opinion piece, or YouTube video

2. Click the Parallax icon in your toolbar (or right-click and select "Analyze with Parallax")

3. The sidebar opens with a real-time scanning animation

4. In seconds, highlighted passages appear in the article and a full analysis loads in the sidebar

5. Click any highlight to see the technique, explanation, and counterargument

6. Browse the Insights tab for a complete overview with your Framing Score (0-100)

Works everywhere you read:

News articles (BBC, NYT, CNN, Reuters, The Guardian, and thousands more)
Opinion pieces and editorials
Blog posts and newsletters
YouTube videos (full transcript analysis with timestamp navigation)
Twitter/X threads
Any web page with text content

Key features:

Framing Score: Every piece of content gets a score from 0 to 100, showing how heavily rhetorical techniques are used overall. Scores are broken down by category with a visual chart.

Inline Highlights: Detected passages are highlighted directly in the article with colour-coded underlines by category. Hover for a quick summary, click for the full analysis.

Detailed Analysis: Each insight includes a plain-language explanation of why the technique matters, what context is missing, and what to look for next time. Academic sources are provided where relevant.

Technique Glossary: A built-in reference guide with definitions, examples, and explanations for all 26 techniques. Learn to spot them yourself.

Blind Spots: An AI-powered analysis of what the article doesn't say — perspectives, evidence, and context that were omitted entirely.

YouTube Integration: Full transcript extraction with timestamp-synced annotations. Click a timestamp to jump to that moment in the video. Annotations appear as overlay pills during playback.

AI Chat: Ask follow-up questions about any insight or the article as a whole. Get deeper context without leaving the page.

Community Voting: Upvote or downvote detections to help improve accuracy. Community feedback trains the system to reduce false positives over time.

Share & Export: Share individual insights or full analysis reports via link. Export article analyses as professionally formatted PDF reports.

Author Profiling: See patterns in how specific authors use rhetorical techniques across their published work.

Domain Calibration: Compare an article's framing score against the average for that publication, so you know if a piece is unusually heavy on rhetoric for its source.

Dark Mode: Full dark mode support that follows your system preferences.

Plans:

Free: 3 scans per month. Full analysis, highlights, and Framing Score on every scan.

Pro ($3.99/month or $29.99/year): 30 scans per month. Includes AI chat, PDF reports, Blind Spots analysis, and detailed explanations.

Max ($8.99/month or $69.99/year): Unlimited scans with deeper analysis powered by a more advanced AI model. Includes everything in Pro plus the Rescan button, 3x faster analysis, and priority processing.

Privacy:

Parallax sends article text to our servers for AI analysis — this is required for the rhetorical technique detection to work. We do not store article content after analysis. Anonymous usage data helps improve detection accuracy. Email is collected only if you sign in. Full privacy policy: https://parallaxreader.com/privacy

Why Parallax?

Every article you read has been crafted to make you feel something. Selective framing, loaded language, and omitted context shape your worldview without you noticing. Parallax makes the invisible visible — so you can engage with ideas on your own terms, not the author's.

Think of it as a spellchecker for rhetoric.

Latest reviews

Andrea B
Genuinely useful little tool-like a spellchecker for bias. Does exactly what it says on the tin.
Andries Kerpestein
Great app, really enjoy using it. Helps you see through the nonsense!
Anna Riedl
I am still using the free version but was very dissappointed when I ran out of free scans. Even for long youtube debates it works smoothly and then flags biased rhetorics throughout the whole video in seconds and gives it a rating overall. It has helped me a lot already.
Laura Klinger
very enlightening!
Christian Schroeder
Useful tool to understand content bias. Highly recommended
Gleb Drach
This extension looks very exciting and might save a lot of time for me
Noah Carl
Great app
Inés Balasch
Absolute game-changer. Parallax has taken online reading or YouTube watching/listening to the next level. Excellent tool for writers, too. I can see Parallax's adoption refining internet discourse; a welcome cause for optimising on this front!
David Hissami
Tried it on a few Youtube videos and was blown away. This is a must have for students, researchers, journalists, really anyone who wants to expand or sharpen their thinking and expose themselves to counterpoints and logical arguments
John Basti
As a researcher, I frequently browse articles online and a friend recommended Parallax. Parallax proved to be effective not only did it show fallacies, but it also provided cogent counterpoints with empirical sources. These studies offered a thorough critique of the relevant arguments. I think if you are a researcher or editor, you should use Parallax
Ignatius
I use this every day and save so much time
Jerry Lehane
Tried it on a Wikipedia article. Didn't do anything.