Editorial translation ·
ZennoBrowser
Integration with ZennoPoster, pay-per-thread pricing
- Fingerprint
- 48/100
- Starting price
- $20/month
- Profiles
- unlimited
- Fingerprint checkers
- 1/5
Free plan — unlimited profiles, no time limit
ZennoBrowser review
ZennoBrowser is an antidetect browser from ZennoLab, the creators of ZennoPoster. Alpha testing began in 2024, and paid plans launched in December 2025. It runs only on Windows and uses a proprietary Chromium build as its browser engine. Profiles can be managed from ZennoPoster 7 and via API. Local profiles are unlimited even on the free plan. Pricing is based on the number of simultaneously running browsers: 2 are free, PRO includes 10 for $20, and each additional browser costs $0.50.
We haven’t run our own tests yet. In public tests (18 results, checked on October 9, 2026), it passed 1 of 5 tested fingerprint checkers.
Strengths
- Free: unlimited local profiles, 2 concurrent threads
- PRO: $20 for 10 threads, then $0.50 per thread
- Integration with ZennoPoster 7 on all plans
- Chromium 154 engine as of October 1, 2026
Weaknesses
- Windows only
- No API on the free plan
- No team access or mobile profiles
Plans
| Plan | Per month | Profiles | Team members | Per profile |
|---|---|---|---|---|
| START | free | unlimited | 1 | — |
| PROstarting price in the ranking | $20 | unlimited | 1 | — |
Free plan available. Prices are in the service’s currency.
Found the right plan? Start with the entry-level plan — you can upgrade anytime.
Open zennolab.comTest results
48/100
Score based on public tests from reviews, research, and benchmarks, checked October 9, 2026. The calculation includes 18 results of 25 found: we do not count the vendor’s claims about itself or checks on other services. Passes 1, partially passes 2, and fails 2 out of 5 tested checkers. We have not run our own test yet.
- Pixelscan3 testsFails
- Iphey2 testsPasses
- Whoer1 testPartially passes
- fv.pro5 testsFails
- BrowserScan7 testsPartially passes
- CreepJSNo public tests
- BrowserLeaksNo public tests
- AmIUniqueNo public tests
- DeviceInfoNo public tests
- f.visionNo public tests
Tests are published by different parties: independent reviewers, partners, and competitors. Independent and recent tests carry more weight, while competitor and partner tests carry less; when there are few external results, the score trends toward 50, meaning “not proven.”
All browsers matrixSecurity
All industry incidentsWe found no public reports of hacks, leaks, or funds stolen through ZennoBrowser. This is not a guarantee: we check public sources, not the service’s code.
We count breaches and leaks on the service’s side, attacks through updates and extensions, account takeovers, and hacking attempts reported by the company itself. Brand impersonation, unverified complaints, patched vulnerabilities that were not exploited, DDoS attacks without data leaks, and account bans by platforms are not included in the incident count; they appear in the “Worth knowing” section. Checked October 8, 2026.
Features
- Engines
- Chromium (ZBE)
- Operating systems
- Windows
- Automation
- Local API, Playwright, Puppeteer
- API
- yes
- Teamwork
- no
- Cloud profiles
- yes
- Mobile profiles
- no
- Crypto payments
- yes
- Free plan
- unlimited profiles
- Trial access
- Free plan
Test it with your own workflows
The score is based on publicly available tests by other authors, each using their own setup and test date. Your proxies, accounts, and workflows may produce different results.
ZennoBrowser news
All ZennoBrowser news 10ZennoBrowser 1.21.0: Chromium 154 and Early Access
The browser engine has been upgraded to Chromium 154, and the settings now include early access: new versions arrive ahead of everyone else, but may be less stable. ZennoLab promises that a new fingerprint service, a trash bin, and temporary profiles will arrive there first.
ZennoBrowser 1.20.3: Profiles Failed to Launch on Windows Server 2019
After the move to Chromium 153, some users couldn’t launch profiles. Three days later, ZennoLab apologized and released hotfix 1.20.4.
ZennoBrowser 1.20.0: ZBE 152 browser engine and startup pages
The browser engine has been updated to ZBE 152.1.3. Because Chromium now ships every two weeks, ZennoLab promises to update the engine more often, with patches. Presets now support startup pages, and profile windows can open at the resolution specified in the fingerprint.
Reviews 87
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Showing 10 of 87
Huge thanks for the quick fix. It’s very important to me because I do this work every day. SOCKS proxies aren’t supported on my end, while HTTP proxies work fine. It’s not as critical anymore; I’m just reporting a bug.
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Yandex banned all my accounts. Apparently, it somehow figured out that I was using ZennoBrowser.
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It feels like Rambler email registrations are also being flagged when created in ZennoBrowser: the signup goes through, but the mailbox dies after a few days. Email accounts created in regular browsers stay active.
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On the latest version, ZB 1.18.1, running on Windows 10, threads hang in roughly 30% of cases and usually become available again only after 10–15 minutes. This shouldn’t happen and seriously disrupts my workflow.
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In the last two ZennoBrowser updates, something is triggering detection, and creating accounts has become much harder. Just to test it, I tried another antidetect browser with the same setup, and the accounts were created without any issues.
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The difference between ZennoBrowser and regular ZennoPoster 7 profiles is that ZennoBrowser comes with browser fingerprints. They also seem to have improved its anonymity, added UDP support, and so on, while the browser built into ZennoPoster is garbage. Whether it works well with Yandex is impossible to know without testing it, especially since there’s a free plan.
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Why does startup keep breaking with every release? I wanted to update, and it happened again. It’s been like this since the very first versions. The product itself is good, but these basic bugs make it impossible to use.
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As usual, clients ask for one thing, and developers build something else. Who asked for “cloud profile transfers” that remain cloud-based forever, with no way to move them to local storage?
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The WebGL detection issue is as old as Zenno itself. Without fixing it, an antidetect browser loses much of its value. The team keeps focusing on other things, so a few acquaintances and I are holding off on subscribing to ZennoBrowser because of its WebGL fingerprint.
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I’ve been dealing with hung threads for a long time (and judging by the forum, I’m not the only one), but on version 1.21.0 everything somehow ran fast. I’ll wait for a new build.