ShieldBlocker-V8
ShieldBlocker-V8: An open-source browser extension for static filtering, visual ad hiding, and per-site controls. Ranked #46 of 49 in Ad Blockers by our editors (6.0/10); pricing: Free plan; best for users wanting a lightweight configurable extension.
At a glance
- Editor score6.0 / 10
- PricingFree plan
- Best forUsers wanting a lightweight configurable extension
- Free planYes
- Paid fromFree
- Device coverageBrowser-only
- Facts checked20 Sep 2026
Where it wins
- Open-source static declarative filtering with customizable rules
- Per-site controls, global pause/resume, and persistent allowlists
- CSS ad hiding with customizable selectors and dynamic allow rules
Where it doesn't
- Manual installation is required from source
- Browser-only coverage does not extend beyond the extension
- Its scope is narrower than broader ad-blocking platforms
Our verdict on ShieldBlocker-V8
ShieldBlocker-V8 is an open-source browser extension for users who want configurable ad blocking without a broader device-level product. It supports Chrome and Firefox, using static declarative network-filtering rules to block advertising requests and CSS-based hiding to remove visual ad elements at document start. The extension provides per-site controls through its popup, along with global pause and resume controls. Its browser-only scope makes it a focused choice for people who want filtering inside supported browsers rather than across other applications or devices.
Control is the product's clearest strength. Users can manage a persistent local allowlist, add dynamic allow rules for allowlisted domains, customize static filter rules, and adjust ad-hiding selectors. The dark-mode responsive popup brings these controls into one interface, while local allowlist storage supports the project's privacy-focused approach. This combination suits users who want more control than a fixed blocking configuration, especially when certain sites or page elements need different treatment.
Setup requires more involvement than a typical browser-store extension. The project is distributed as source code and installed manually as an unpacked extension or temporary Firefox add-on. That installation model will appeal to users comfortable managing extensions from source, but it is less suitable for anyone who expects a hosted installation flow. Choose ShieldBlocker-V8 for lightweight, browser-focused filtering and configurable controls; consider an alternative if you need coverage beyond browsers or prefer a ready-made store installation.
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ShieldBlocker-V8 pricing
ShieldBlocker-V8 fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Device coverage | Browser-only |
| Custom filter lists | Not verified |
| Element picker | Not verified |
| Cookie popup blocking | Not verified |
| Device limit | Not verified |
| Browser support | Multiple-browsers |
| Deployment | Browser extension |
| Platforms | Chrome extension |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to ShieldBlocker-V8
- AdGuardA broad ad and privacy blocker with browser, app, DNS, and parental controls.9.4
- GhosteryA free, open-source blocker with broad platform coverage and detailed privacy controls.9.2
- uBlock OriginA highly configurable free blocker for users who want control over filtering.9.1
See all ShieldBlocker-V8 alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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