WebMark
Web highlighter that proves it cannot upload your reading history.
Standalone $2.99/mo or $29.90/yr.
Why it matters
What WebMark does that nothing else does
- Benefit 1:
connect-src:none CSP — highlights are mathematically incapable of leaving Chrome.
- Benefit 2:
Four highlight colours plus inline notes and full-text search across pages.
- Benefit 3:
Free Markdown and JSON export; no account, no friction with Obsidian or Logseq.
- Benefit 4:
Pro adds AI semantic search across highlights and AI page summaries.
Pricing
Buy WebMark alone, or get the bundle
Use only this extension? Buy it standalone. Use three or more Aegis extensions? The Pro Pack pays for itself.
Standalone
WebMark Pro
$2.99/mo
Or $29.90/yr — save when paid annually.
Pro tier on WebMark only. Cancel anytime.
Get WebMark ProBest value
Save $21/yrAegis Pro Pack
$9.99/mo
Or $99/yr — covers every Aegis extension you install.
Unlocks Pro on WebMark and every other Aegis extension. New extensions included automatically.
Get the Pro PackBuilt the Aegis way
Privacy you can verify, not just claim
On-device by default
Every Aegis extension runs in your browser. No silent cloud upload, no server-side processing of your activity.
Never sold, never bundled
Aegis extensions never change ownership. Updates come from the same publisher you trusted at install.
No account required
Install and use immediately. Pro features unlock with a single sign-in to your Aegis Pro Pack.
MV3-native
Built for Chrome Manifest V3 from day one — no deprecation warnings, no broken background pages.
Why switch
WebMark vs Readwise
Readwise charges more per month and stores every highlight on its servers behind a required account. WebMark's connect-src:none CSP makes upload impossible, ships four colours and full-text search free, and integrates with Obsidian via Markdown export.
| Feature | WebMark | Readwise |
|---|---|---|
| Monthly price | $2.99/mo | $7.99/mo |
| Account required | No — install and use immediately | Often yes (varies by competitor) |
| Data leaves the browser | No — on-device by default | See competitor privacy policy |
| Ownership transfer risk | Aegis never sells extensions | Varies — see ExtensionWatch in this catalog |
| Bundled with Aegis Pro Pack | Yes — $9.99/mo unlocks every extension | No bundle |
See it in action
WebMark screenshots


More screenshots and the full feature walkthrough live on the WebMark landing page.
Common questions
- How can a web highlighter be useful with no cloud sync?
- The highlight + note metadata lives in chrome.storage and is keyed by the page URL. Re-visit a page and your highlights restore. Pro adds AI semantic search across every highlight you have ever made — locally, with no upload.
- How do I get my highlights into Obsidian?
- Markdown export is free and produces one .md file per page (or one combined file). Drop it into your Obsidian vault and your highlights show up next to your notes.
- How is "cannot upload" enforced?
- The extension manifest sets `connect-src 'none'`, which Chrome enforces at the network layer. The extension is mathematically incapable of opening a network connection — including to our servers.
- How does the Aegis Pro Pack unlock WebMark?
- Sign in to aegisfirma.com from any installed Aegis extension popup. The cookie-auth flow detects your active Pro Pack and unlocks Pro features instantly — no license key to copy or paste.
- Where is my WebMark data stored?
- WebMark stores everything in chrome.storage on your device. Your subscription record lives in our payment provider's account; we do not aggregate browsing or activity data.
- Can I cancel WebMark Pro anytime?
- Yes — billing stops at the end of the current period. Pro features remain active until the period ends, then drop back to the free tier.
- Why should I trust an extension I just heard of?
- Aegis extensions never change ownership and never sell user data. We publish security audit results and ship MV3-native code so Chrome itself enforces the permissions we claim.
Try WebMark free, upgrade when ready
Free tier covers the basics. Pro Pack at $9.99/mo unlocks every Aegis extension at once.