fakespot alternatives 2026 — an honest comparison

TL;DR. Mozilla shut Fakespot down on 1 July 2025. Six tools rushed in to fill the gap, and most of them inflate their install counts on the homepage. This guide compares every credible Fakespot alternative against the only number that doesn’t lie: their Chrome Web Store listing. Spoiler — the loudest pages have the smallest audiences.

Disclosure. This guide is published by the makers of Review Guardian — we’ll review ourselves with the same rigor as everyone else. Where a competitor has more users than us, we say so. Where our honest tradeoffs disqualify us for your use case, we say that too.

Comparison table

Seven options compared on the things that matter when you’re rebuilding the Fakespot workflow on a 2026 browser. Install counts and ratings verified against Chrome Web Store mirrors (extwise.com, extpose.com, chrome-stats.com) on 21 May 2026. Where a number could not be primary-sourced — usually because Chrome Web Store’s consent-gate blocks automated fetches — the cell reads UNVERIFIED rather than guessing.

Tool Free? Pricing Privacy Detection method Active maintenance CWS installs (verified) CWS rating Platform Last updated Verdict
Fakespot Yes Free Server-side Cloud LLM (acquired by Mozilla 2023) Discontinued ~1M+ at peak (de-listed) — Chrome, Firefox, iOS, Android 1 July 2025 (shutdown) Dead. Mozilla redirected fakespot.com to a strategy post.
Review Guardian Yes Free — all features, no account On-device On-device Gemini Nano (Chrome Prompt API) Active — v0.2.0 May 2026 Launching 2026-05 New listing Chrome 138+ only 21 May 2026 The on-device pick. Amazon-only.
ReviewShield Yes Free + Pro $4.99/mo Claims on-device 7 heuristics (verified purchase, timing, distribution, originality, profile, incentivized lang., length) Unknown UNVERIFIED (CWS gate) UNVERIFIED Chrome UNVERIFIED No standalone site. CWS listing only.
SureVett Yes Free (in-app purchases noted) Server-side 6 review-trust signals (rating distribution, verified purchase ratio, velocity, count, seller trust, brand signals) Active 11 0.0 / 0 ratings Chrome March 2026 Slick site, founder credentials, almost no users yet.
Savinoo Yes Free forever (no paid tier) Server-side Server-side algorithmic filtering Active 1,000 3.95 / 20 votes Chrome (multi-marketplace) March 2026 Most installs after Fakespot’s ghost. No sustainability model.
NullFake Yes Free forever Server-side (open source) AI cloud analysis (paste-URL form) Active < 100 UNVERIFIED Chrome + Firefox + web 2026 Open-source. Form-first UX (paste a URL, wait).
RateBud Yes Free (with affiliate links) Server-side AI cloud analysis + claimed 95% accuracy Active ~1,000 (site claims 100K+) UNVERIFIED (site claims 4.9 / 15K+) Chrome + Firefox + web 2026 Claims don’t reconcile with the listing. Treat carefully.

* RateBud’s homepage claims “100K+ Users” and “4.9 / 15K+ reviews”. SureVett’s research blog (their direct competitor, so take with salt) puts the actual Chrome Web Store install count near 1,000 — three orders of magnitude lower. We cite the contradiction; we’re not the arbiter.

Numbers will drift as new versions ship. If you spot a stale figure, open an issue on GitHub and we’ll re-verify on the next pass.

Fakespot — the dead predecessor

Fakespot ran from 2016 to 1 July 2025. Founded by Saoud Khalifah, acquired by Mozilla in May 2023, and shut down barely two years later. At its peak it had Chrome, Firefox, iOS, and Android clients, an A–F trust-grade UX that defined the category vocabulary, and millions of users — the exact number Mozilla never published publicly. Mozilla’s 22 May 2025 announcement said Fakespot “didn’t fit a model we could sustain”: the cloud LLM cost of scoring every product page on demand did not survive the shift from heuristic detection to generative-AI-era detection.

Why it stopped working. Fakespot uploaded review text to its servers to score it. As LLM inference costs ballooned through 2024, the consumer-grade free tier became uneconomic — and Mozilla, in the middle of its “focus on Firefox” reset, chose to shut it rather than monetize it. The redirect at fakespot.com now points at Mozilla’s strategy post. The Chrome and Firefox listings are gone. If you still have the extension installed, it stopped scoring sometime in July 2025; uninstall it.

Why this comparison exists. Every tool below is competing for the audience Fakespot left behind. The honest question isn’t “which one is best” — it’s “which one would survive what killed Fakespot”. That’s the lens we’ve used.

Review Guardian — the on-device pick

Built from the ground up for Chrome’s on-device Gemini Nano (Prompt API, Chrome 138+). When you open an Amazon product page, Review Guardian analyzes the visible reviews locally — the model weights run on your laptop, the analysis never leaves your browser, and we pay $0 in server costs because there are no servers. That last bit is the design decision that lets us promise the tool stays free indefinitely: the unit economics that killed Fakespot don’t apply here.

100% free — no paywall Unlimited Deep Analyze A–F trust grade per product No signup. No account.

What it does. Grades every Amazon review A–F locally with on-device Gemini Nano. Flags review-bombing patterns, reviewer-profile irregularities, suspicious timing clusters, and AI-generated language. Shows an adjusted star rating that strips the fakes from the average. Plain-English reasoning for every grade — never a black-box score. Built by the team behind Cookie Guardian.

Honest tradeoff. Chrome 138 or newer required — your laptop does the AI work. That’s the trade for $0 server costs and zero data leaving your browser. We’re Amazon-only because we’d rather ship a working Amazon experience than a half-broken multi-marketplace one. And we’re not on Firefox yet — Firefox doesn’t have an equivalent on-device API in 2026. If any of those rule us out for your use case, the table above lists the alternatives.

Why we believe it survives. Server-side competitors are one Anthropic / OpenAI pricing change away from the Fakespot fate. On-device runs on hardware you already own — near-zero running costs, so the tool stays free and the protection stays universal.

Install Review Guardian — free, no account required.

Add to Chrome — Free

ReviewShield

ReviewShield is a Chrome Web Store-only listing from Loophead Labs LLC. There’s no standalone marketing site we could find — the entire product surface is the CWS page itself. It bills itself as a fake-review detector for Amazon with trust scores, adjusted ratings, and (claimed) 100% private on-device analysis. Pro tier is $4.99/month and unlocks “AI-powered features” on top of the free heuristics.

What’s good. The listing explicitly enumerates seven detection signals: verified purchase rates, review timing patterns, rating distribution, text originality, reviewer profile quality, incentivized-language detection, review length analysis. Naming the heuristics builds more trust than “AI-powered”. The triple-stack “no signup, no account, no data collection” is solid privacy phrasing.

What’s missing. No standalone site means no blog, no SEO, no founder story, no clarity on what “100% on-device” means in practice (the free tier is heuristic-based — the “AI” in Pro is unspecified, which would normally mean a cloud call). And the install count and rating are both UNVERIFIED because the Chrome Web Store consent gate blocked our fetch.

Recommendation. Plausible if the heuristic-only free tier is enough for you and you don’t need a marketing-site warranty. Read the privacy policy carefully before paying $4.99/mo for Pro until the on-device claim is independently verifiable. CWS listing.

SureVett

SureVett (surevett.com) is the best-marketed entry in the category. The site is content-rich, well-organized, has a blog with SEO plays already live, and the founder — Nathan Hart — surfaces a strong personal-credentials story (ex-AWS, testified for the Department of Justice in a federal fraud case). The hero claim is “Join thousands of shoppers who never fall for fake reviews”.

Hero claim: “thousands of shoppers” Verified CWS: 11 installs Rating: 0.0 / 0 ratings

The honest data check. The independent extwise.com mirror puts SureVett at 11 active Chrome Web Store installs and 0.0 stars across 0 ratings as of March 2026. “Thousands of shoppers” is not what the data says. To SureVett’s credit, the founder’s LinkedIn and blog content are real, and the product appears to be early-genuine rather than vapor — but the social-proof line above the fold doesn’t match the CWS reality. That’s the kind of thing this comparison page exists to call out.

What’s good. Plain-English reasoning for every score — explicit anti-black-box positioning, which is the right answer to a category that historically hand-waved “AI-powered”. Six named trust signals. SEO content infrastructure (a competing “Fakespot alternatives 2026” blog post lives on their site too — we’ve linked it in Sources). Founder story carries weight.

What’s missing. Real users. The product is so new that the social-proof claim cannot be substantiated. Pricing isn’t shown above the fold on the marketing site; the CWS listing notes “in-app purchases” without surfacing them. Server-side detection means the same unit-economics question Mozilla’s shutdown raised — what happens when inference costs double?

Recommendation. Worth a try if the founder story sells you and you’re comfortable being an early user. The product may grow into the claim. Until then, the “thousands of shoppers” line is a marketing instinct that deserves to be called what it is.

Savinoo (a.k.a. Savino)

Savinoo (savinoo.app) is the highest-install live alternative — 1,000 verified Chrome Web Store users, 3.95 stars across 20 votes as of March 2026 (per the independent extpose.com listing). The site claims “50,000+ products analyzed” and “Join over 50,000 Amazon shoppers” in the hero, which conflates the two metrics — products analyzed is a defensible 50K, shoppers using the tool is 1,000. Softer puffery than RateBud’s, but worth flagging.

Hero claim: “50,000+ shoppers” / “50,000+ products analyzed” Verified CWS: 1,000 installs Rating: 3.95 / 20 votes

What’s good. Multi-marketplace coverage (works across Amazon’s global storefronts — US, UK, DE, FR, CA, AU, JP). Adjusted-rating UX is clean. 11-question FAQ block is good SEO. Free-forever pricing is sustainable to install but raises the same sustainability question as everyone server-side: what funds development long-term?

What’s missing. No founder story. “Tuki Publishers” footer is a shell. Visual quality is competent SaaS-template polish, not branded. The free-forever-no-paywall promise is hard to keep if server costs grow with users — the model that didn’t work for Mozilla is the model Savinoo runs on, with a smaller user base and presumably a smaller infrastructure budget.

Recommendation. The strongest current pick for multi-marketplace coverage if you live in Amazon.de or Amazon.co.jp. Watch the sustainability signal — if Savinoo ships a paid tier in 2026 or 2027, that’s a healthy sign, not a bad one. CWS listing.

NullFake

NullFake (nullfake.com) is the only open-source entry — the GitHub repo is real and live at github.com/stardothosting/nullfake, anyone can audit the analysis logic, and the project ships builds for both Chrome and Firefox. The hero claim is “81K+ Products Analyzed” with a “Up to 42% of Amazon reviews may be fake” sub-stat. The CWS install count, per SureVett’s research blog, is “fewer than 100 users”.

What’s good. Open source is the strongest possible trust signal — the source code claims about “AI-powered” can be checked against the actual implementation. 14+ country coverage. Free forever with no daily limits. Firefox build is a nice-to-have for Firefox holdouts.

What’s missing. Paste-URL-then-wait-30-seconds UX is a 2018 pattern that asks the user to interrupt their shopping flow, copy a URL, paste it into a separate site, and come back. The auto-on-Amazon UX Fakespot pioneered (and Review Guardian and Savinoo continue) is just less friction. The “under 100 CWS users” figure means early-genuine, but also that the product hasn’t had a lot of real-world stress-testing.

Recommendation. Pick NullFake if open-source verifiability matters to you more than UX polish, or if you want a tool you can audit and self-host. The site is genuine in a way RateBud isn’t — small, transparent, honest about what it is.

RateBud

RateBud (ratebud.ai) looks polished at first glance — modern AI-startup template, dark mode, big numbers everywhere. Look closer and the numbers don’t reconcile. The hero claims “100K+ Users”, “250K+ Products Analyzed”, “95% Accuracy Rate”, “4.9 User Rating”, and “4.9/5 (15K+ reviews)”. SureVett’s research blog (citation, not primary) puts the actual Chrome Web Store install count near 1,000 — three orders of magnitude lower. 15,000+ user reviews would make RateBud the most-reviewed extension in the entire category by an order of magnitude. That isn’t what the data says.

Hero claim: “100K+ Users” Hero claim: “4.9 / 15K+ reviews” SureVett blog cites: ~1,000 CWS users

The H1 typo. RateBud’s homepage hero, at time of writing, reads “AmazonReview Checker” — missing the space. That’s the kind of quality issue a polished page doesn’t have, and it’s a signal worth pricing into your trust assessment.

The undisclosed affiliate links. SureVett’s comparison blog notes that RateBud’s “Recently Analyzed Products” section links to Amazon with affiliate-tracking parameters, without surfacing the affiliate relationship in any way the casual reader would notice. Affiliate links aren’t inherently wrong — undisclosed affiliate links are an FTC issue in the US. Mention this to your trust calibration.

What’s good. “Trust Scores You Can Rely On” framing is sharp. Programmatic-SEO play (per-product landing pages) is structurally impressive. The Firefox build is real.

Recommendation. Treat all marketing-page numbers as inflated until independently verified. The product may be functional; the claims around it are not the claims we’d stand behind.

Frequently asked questions

Is Fakespot really gone?
Yes. Mozilla announced the shutdown on 22 May 2025 and the service ended on 1 July 2025. The Chrome and Firefox listings have been removed from their stores, the iOS and Android apps are de-listed, and fakespot.com now 301-redirects to a Mozilla strategy post titled “Investing in what moves the internet forward”. If you still have the extension installed, it stopped grading reviews in July 2025 — uninstall it. See our explainer at why Fakespot stopped working for the full timeline.
What’s the best Fakespot alternative in 2026?
It depends what you value. For Amazon-only users on Chrome 138+ who want the tool that doesn’t send review text to a server, that’s Review Guardian. For multi-marketplace coverage (Amazon.de, Amazon.co.jp), Savinoo has the most installed users today. For open-source verifiability, NullFake. ReviewShield, SureVett, and RateBud are all early-stage with fewer than ~1,000 users each, despite some of them claiming otherwise.
Why did Mozilla shut Fakespot down?
The cited reason is “didn’t fit a model we could sustain” — Mozilla’s polite way of saying the unit economics of scoring every Amazon product page with cloud LLM inference, for free, at consumer scale, didn’t work. As generative-AI inference costs rose through 2024, the free-to-users / paid-by-Mozilla model became uneconomic. Mozilla chose to focus on Firefox rather than spin out or sell Fakespot. The fuller technical reasoning lives on our companion page: why Fakespot stopped working — and what fills the hole.
How does Review Guardian compare to Fakespot specifically?
Same A–F grade UX, same adjusted-rating concept, same auto-on-Amazon behaviour. Two structural differences: Review Guardian runs the AI on your laptop (Chrome 138+ on-device Gemini Nano) so review text never leaves your browser; and because on-device inference costs nothing to serve, every feature is free. Tradeoffs: Review Guardian is Amazon-only at launch; Fakespot covered Amazon, eBay, Walmart, Best Buy, and Sephora.
Why does the table mark some competitor numbers UNVERIFIED?
The Chrome Web Store doesn’t expose install counts and ratings to automated requests — there’s a Google consent gate that blocks most fetches. Third-party mirrors (extwise, extpose, chrome-stats) cover some extensions but not all. Where the number could be primary-sourced, the cell shows the actual figure. Where it couldn’t, the cell shows “UNVERIFIED” instead of a guess. This is the same standard we apply to our own numbers.
Is Review Guardian open source?
Not as of v0.2.0 (May 2026). The manifest and parts of the content script will likely be opened up in 2026 once the on-device prompt-engineering work stabilizes — auditability is a privacy-first principle and we want to ship it properly rather than half. Until then, the privacy claim is verifiable two other ways: the manifest requests Amazon domains only (you can see the full permission list before install), and the Chrome Prompt API by design runs the model locally with no network call to Google’s servers.
Does Review Guardian work on Firefox or Safari?
Not yet. Firefox doesn’t expose an on-device Prompt API equivalent in 2026 — without that, we’d have to send reviews to a server, which would put us right back into the unit-economics problem that killed Fakespot. Safari has the same gap. If on-device LLM APIs ship to either browser, we’ll port. Until then, Firefox users wanting an A–F grade should look at Savinoo or NullFake; the tradeoff is server-side analysis.
Should I trust a fake-review tool that costs money?
Free is sustainable only if someone else is paying — usually the user, in data; sometimes the platform, until the platform stops. Fakespot was free, and Mozilla stopped paying. Savinoo is free, server-side, and hasn’t named the sustainability model. Review Guardian stays free — every feature, for everyone — because on-device inference costs $0: there is no per-user server bill for anyone to have to cover. Whichever tool you pick, ask: who pays? Because the answer determines whether it’s still around in 2027.

Coming from Fakespot? Install the on-device pick.

Review Guardian grades every Amazon review A–F using on-device Gemini Nano. No servers. No tracking. No account. Chrome 138+.

Add to Chrome — Free

Sources & further reading