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Protected controls
PIN protected settings keep browsing rules deliberate on shared devices and family computers.
Magnetar Guardian
Safer, calmer browsing.
Block unwanted categories, reduce distraction, and help protect shared browsing environments without accounts, telemetry, cloud syncing, or invasive tracking. Free, open source and built to stay local.
Get Magnetar Guardian
Runs locally in your browser, with no accounts, telemetry, analytics or invasive tracking.
What is Magnetar Guardian?
Magnetar Guardian is a local-first browser protection extension for shared computers and everyday browsing. It helps create calmer guardrails for younger users, older family members, and anyone trying to reduce distracting or unwanted browsing categories.
It is free and open source, with no accounts, telemetry, analytics or cloud dependency. Settings and protection controls stay in the browser.
Calm protection in practice
02 - Featured
Category filtering
Block harmful or unwanted browsing categories locally, without accounts, cloud syncing or invasive tracking.
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Temporary access
Temporarily allow access when needed, then return to the calmer protected browsing state.
Built for shared browsing
Family-safe browsing
Help younger users browse on shared family computers with clearer boundaries and fewer unsuitable destinations.
Reduce distractions online
Reduce access to distracting categories on personal machines, workstations and shared household computers.
Shared computer protection
Support older relatives or occasional computer users who may benefit from simpler guardrails around risky or misleading destinations.
Local-first browser protection
Keep everyday browsing steadier on computers used by several people, without adding surveillance or account management.
Protection that stays local
Magnetar Guardian helps block unwanted browsing categories, reduce distracting sites, and keep shared browser environments calmer. It is built for homes, workstations, and family computers where not everyone has the same confidence online, without accounts, remote dashboards, cloud syncing or behaviour tracking.
No account layer
Guardian keeps the control surface close to the browser. Settings are local, protected controls are intentional, and the extension does not rely on telemetry or analytics to do its job. It is a quiet layer for people who want fewer distractions and fewer accidental clicks.
No accounts required No telemetry No analytics No cloud syncing
What you get
Local-first browser protection
Rules and settings live in the browser, with no accounts, telemetry, analytics or cloud syncing.
PIN protected controls
Sensitive controls can be guarded by a PIN, making changes intentional on shared computers.
Category filtering
Block unwanted browsing categories to reduce exposure to harmful, distracting or unsuitable sites.
Temporary allow access
Allow a blocked page for a short time when access is genuinely needed.
Shared computer safety
Designed for family devices, workstations and browsers used by more than one person.
Browser-native blocking
A lightweight extension that works inside the browser without adding another account layer.
Reduce distractions online
Reduce distracting categories so browsing feels calmer and more deliberate.
Family-safe browsing
Help protect everyday browsing environments with clear local controls.
No tracking
No telemetry, no analytics and no invasive tracking of browsing activity.
Part of the Magnetar family
Looking for torrent workflow tools instead? Try Magnetar.
FAQ
Does Guardian send browsing data anywhere?
No. Guardian is local-first, with no accounts, telemetry, analytics or cloud syncing.
Does Guardian work offline?
Guardian's local settings and protection controls live in the browser. Store pages and updates still require an internet connection.
Which browsers are supported?
Guardian is available for Chromium-based browsers through the Chrome Web Store and for Firefox through Firefox Add-ons.
Is Guardian a full ad blocker?
No. Guardian is focused on category protection, calmer browsing and shared computer controls rather than general ad blocking.
Designed for trust
Local-first
- Rules and settings stay in the browser
- No accounts required
- No cloud syncing
- No extension analytics
- No extension telemetry
Protection controls
- PIN protected settings
- Category filtering
- Temporary allow access
- Shared computer safety
- Lightweight browser-native blocking