# Are Reaction Videos Fair Use? The Honest Answer > Are reaction videos fair use? The honest answer: sometimes. How the four factors, the H3H3 case, and Warhol v. Goldsmith apply to react content on YouTube. Guide | Author: Lidiia Levitska | Source: Intellectual Property Law (outsideipcounsel.com) Canonical: https://outsideipcounsel.com/guides/are-reaction-videos-fair-use/
Quick answer: Some reaction videos are fair use and some are plain infringement — the format itself decides nothing. Under [17 U.S.C. § 107](https://www.law.cornell.edu/uscode/text/17/107), what matters is whether you add genuine commentary, criticism, or analysis, whether you use more of the original than that commentary needs, and whether your video can substitute for watching the original. A creator who pauses, cuts, and actually critiques short clips has a strong position, as the H3H3 case showed; a creator who streams someone else’s full video while occasionally nodding does not. And even a bulletproof fair-use claim won’t stop Content ID from flagging you, because automated matching doesn’t evaluate fair use. This is general education, not legal advice — have an attorney licensed in your jurisdiction review your specific situation.
You watch a trailer, a music video, or another creator’s upload on camera, splice in your genuine reactions, and post it. Half of YouTube tells you "reactions are fair use"; the other half calls the genre theft with extra steps. So are reaction videos fair use? The honest answer is that **fair use is decided video by video, not genre by genre** — and the same channel can have some uploads that would win in court and others that wouldn’t survive a motion. This guide walks through the four statutory factors as they actually apply to react content, the one real reaction-video case, what the Supreme Court’s *Warhol* decision changed, and a practical playbook for lowering your risk. It’s part of our [copyright guide for online creators](/guides/copyright-for-online-creators/). ## The four fair-use factors, applied to reactions **Fair use** is codified at **17 U.S.C. § 107**. Courts weigh four non-exclusive factors, and none is automatically decisive: 1. **Purpose and character of the use** — is your video commentary, criticism, or parody (favored uses named in the statute), and is it *transformative*, meaning it adds new meaning or message rather than just repackaging the original? Commercial use (monetized videos) counts against you but doesn’t sink you by itself. 2. **Nature of the copyrighted work** — creative works like skits, music videos, and films get more protection than factual ones. Most reaction fodder is highly creative, so this factor usually leans against the reactor. It rarely decides cases. 3. **Amount and substantiality** — how much of the original you show, and whether you took its "heart." This is measured against the *original*, not against your total runtime. Adding 40 minutes of your face doesn’t launder 10 minutes of someone else’s video. 4. **Effect on the market** — can your video **substitute** for the original, or harm its licensing market? This is where full-video reactions bleed out: if viewers can watch the whole thing inside your upload, they have no reason to click the original. For a deeper walkthrough of the doctrine itself, see [fair use explained](/guides/fair-use-explained/). ## The transformativeness spectrum: nodding vs. critiquing Reaction content spans a spectrum, and it’s worth being honest about where a given video sits. At one end: the **"second-screen" reaction** — the creator plays another video essentially in full, face in the corner, contributing "wow," laughter, and the occasional "that’s crazy." Nothing about the original is analyzed, criticized, or recontextualized. There is very little transformative about this; it’s closer to an unauthorized public performance with a picture-in-picture overlay. The viewer consumes the entire original work, which means factor three (amount) and factor four (substitution) both cut hard against fair use. At the other end: the **commentary or critique format** — short excerpts, frequent pauses, and substantive discussion of what was just shown: why a claim is wrong, why a joke works, what a filmmaking choice accomplishes. Each clip exists *because* the commentary needs it. That is the classic criticism use § 107 was written to protect. Most real channels live somewhere in the middle. The legal question for each upload is simple to state and uncomfortable to answer: **if you stripped out the borrowed footage, would your contribution still be a video?** If your content is the reaction, you’re probably fine. If the content is *their* video and you’re garnish, you’re probably not. ## Hosseinzadeh v. Klein: the reaction-video case There is exactly one square federal decision on reaction videos: ***Hosseinzadeh v. Klein*, 276 F. Supp. 3d 34 (S.D.N.Y. 2017)** — the **H3H3 case**. Matt Hosseinzadeh sued Ethan and Hila Klein over a video mocking his "Bold Guy" skit. The Kleins’ video used roughly three minutes of the five-and-a-half-minute original, broken into segments, each followed by extended ridicule and critique. The court granted summary judgment for the Kleins on fair use. The reasoning matters more than the result: - The Kleins’ video was "quintessential criticism and comment" — the clips were the *object* of the commentary, not a way to deliver the skit to viewers. - Although they used a large portion of the original, the amount was justified because the commentary responded to specific moments throughout. - No one seeking the original skit would treat the Kleins’ video as a substitute. Just as important is what the case **didn’t** decide. The judge went out of her way to say the ruling was about *this* video, cautioning that the genre ranges from genuine critique to videos that show someone else’s content with little added — "more akin to a group viewing session" — and that those raise a different question. Anyone citing H3H3 as "reactions are legal now" is misreading it. A related data point: in *Equals Three, LLC v. Jukin Media* (C.D. Cal. 2015), a court found most episodes of a jokes-over-viral-clips show fair use but refused to rule categorically, going clip by clip. That’s the pattern — courts refuse to bless formats. ## What Warhol v. Goldsmith changed In ***Andy Warhol Foundation v. Goldsmith*, 598 U.S. 508 (2023)**, the Supreme Court tightened the first factor. Warhol’s silkscreen of a Lynn Goldsmith photo of Prince wasn’t fair use *as licensed to a magazine*, because both the photo and the silkscreen served the same purpose — illustrating articles about Prince — and the use was commercial. The Court’s core move: **a new aesthetic or added expression isn’t enough; ask whether the use serves a different purpose from the original, and whether it competes with it.** For reactors, *Warhol* is a warning shot at the weak end of the spectrum. A reaction that functions as a way to *watch the underlying video* serves the same purpose as the original — entertainment via that content — and it’s monetized. That’s the *Warhol* fact pattern in creator clothing. Genuine criticism, by contrast, came through *Warhol* untouched: commenting *on* a work is the textbook different purpose, and the opinion repeatedly reaffirmed commentary and criticism as favored uses. The decision didn’t kill reaction content; it made the "I added vibes" defense weaker and the "I added analysis" defense more important. ## Amount and market harm: the two factors reactors ignore Creators obsess over transformativeness and forget the factors that actually kill react uploads. **Amount and substantiality.** Showing a full video — even paused occasionally — means you took 100% of the work, including its "heart" (the punchline, the reveal, the drop). Courts have found takings unfair at far smaller fractions when the heart was taken (*Harper & Row v. Nation Enterprises*, 471 U.S. 539 (1985), involved about 300 words of a memoir). The question is always: **did you use more than your commentary needed?** If you didn’t discuss a segment, you didn’t need it. **Market substitution.** Ask the brutal question: after watching your reaction, does anyone still need to watch the original? For a full-video react, no — you captured the view, the watch time, and often the ad revenue that belonged to the original. That’s not a fairness vibe; it’s the fourth factor, which courts treat as centrally important. It’s also why reacting to *small* creators is legally riskier than reacting to Netflix trailers: your upload can realistically replace a small creator’s traffic, and they’re the ones angry enough to sue. ## Why fair use won't stop Content ID Here’s the platform reality that surprises everyone: **fair use is a defense in court, not a setting on YouTube.** Content ID is an audio/video fingerprint matcher. It cannot evaluate commentary, purpose, or transformation — it detects that your upload contains claimed content and applies the rightsholder’s chosen policy (monetize, track, or block) automatically. A reaction video that would win in federal court can still be claimed and its revenue redirected the day you post it. Manual takedowns are the sharper edge: a rightsholder who sends a DMCA notice puts a **copyright strike** on your channel, and fighting it means the dispute ladder and eventually a [DMCA counter-notice](/guides/dmca-counter-notice/) — which invites the claimant to sue you within roughly 14 business days if they mean it. Understand the difference between claims and strikes before you build a channel on other people’s footage: see [YouTube copyright claim vs. strike](/guides/youtube-copyright-claim-vs-strike/). And if you react live on stream, remember the music playing inside whatever you’re reacting to is its own minefield — see [Twitch DMCA music rules](/guides/twitch-dmca-music-rules/). ## A practical risk-reduction playbook You can’t make react content risk-free, but you can move yourself decisively toward the protected end of the spectrum: 1. **Pause and talk — a lot.** The ratio courts noticed in H3H3 was clips interspersed with substantial commentary. Silence over footage is the enemy. 2. **Cut what you don’t discuss.** Don’t show segments you have nothing to say about. Every second of borrowed footage should be earning its place. 3. **Never show the whole thing.** Full-length reactions are the single riskiest pattern — they maximize factor three and factor four simultaneously. Link the original instead. 4. **Add real substance.** Criticism, factual correction, technique analysis, jokes *about* the material. "W" and "L" are not commentary. 5. **Mind who you're reacting to.** Big studios mostly deploy Content ID; small creators sue (Hosseinzadeh was a small creator). Drama reactions about other YouTubers carry the highest litigation risk in the genre — the targets are motivated, findable, and often already lawyered up. 6. **Expect claims anyway** and know the dispute process cold before you need it. ## Etiquette wars vs. actual law The react-content discourse — "reactors must transform," "always link the original," "don’t react without permission" — is community norm-setting, not law. Some norms track the legal factors (adding commentary, not showing full videos); others don’t exist in § 107 at all (crediting the creator is polite but legally irrelevant to fair use, and permission is what fair use makes *unnecessary*). Conversely, a creator can follow every etiquette rule and still infringe, or break them all and still win on the factors. Use the norms to keep the peace; use the four factors to assess your actual exposure. For how courts have applied these principles across real disputes, browse the [copyright case archive](/topics/copyright/). ## The bottom line Reaction videos are neither categorically fair use nor categorically infringement. The law protects reactors who function as critics — short excerpts, real commentary, no substitute for the original — and it does not protect rebroadcasters with a face-cam. H3H3 won because their video was criticism; the same court warned that "group viewing session" reactions are a different animal, and *Warhol* has since made purpose and commercialism matter more. Build videos where your contribution is the point, keep the borrowed footage lean, and remember that even perfect fair use won’t stop an automated claim — it just means you’ll win the fight that follows. --- *This article is general legal information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and may not reflect the most current law in your area. Fair-use questions turn on specific facts. For advice about your situation, consult an attorney licensed in your jurisdiction.* ## Frequently asked questions ### Are reaction videos legal on YouTube? Reaction videos are legal when they qualify as fair use under 17 U.S.C. § 107, which usually means the reactor adds genuine commentary, criticism, or analysis and uses no more of the original than needed. A reaction that plays someone else’s full video with occasional nods or laughter adds little and is much closer to infringement. There is no blanket rule either way — courts decide each video on its own facts, weighing purpose, amount used, and market harm. ### What did the H3H3 (Hosseinzadeh v. Klein) case actually decide? In Hosseinzadeh v. Klein (S.D.N.Y. 2017), a federal court held that Ethan and Hila Klein’s video mocking a Matt Hosseinzadeh skit was fair use because they used short clips interspersed with substantial critical commentary — the video was a critique, not a substitute for the original. The judge explicitly warned that the ruling did not bless the whole genre, noting that reaction videos which use someone else’s content with little or no commentary are ‘more akin to a group viewing session’ and raise a very different fair-use question. ### Can I get a copyright strike for a reaction video even if it's fair use? Yes. Fair use is a defense you assert after a claim, not a shield that prevents one. YouTube’s Content ID matches your video automatically and doesn’t evaluate fair use at all, so a fully lawful reaction can still be claimed, demonetized, or blocked. A rightsholder can also send a manual takedown that produces a strike; your remedies are the dispute process and, ultimately, a DMCA counter-notice — which can escalate to an actual lawsuit. ### How much of a video can I show in a reaction? There’s no fixed percentage or second count. The legal test is whether the amount you use is reasonable in relation to your commentary’s purpose — courts ask whether each clip serves a point you’re actually making. Showing an entire video start-to-finish is the riskiest pattern because your upload can substitute for watching the original, which strikes at the fourth fair-use factor. Pausing frequently, cutting what you don’t discuss, and skipping sections signals that your video is commentary, not a rebroadcast.