Caspian
Caspian 0.1.2 is out

The browser that stays out of your way.

Caspian is a calm, private desktop browser. It tells you when a site is the real one, blocks ads and trackers on its own, and keeps split view, a media player and family controls built in.

Caspian — New tab×
Deep sea documentary
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caspian.zenithos.dev0
Caspian
Search DuckDuckGo or type a URL
M
Mail
D
Docs
G
GitHub
M
Music
N
News
M
Maps
C
Calendar
P
Photos
Chromium
engine, with Google's services stripped out
0
accounts, telemetry or sync servers
3
platforms from one codebase
4
release channels, updated in the background
Verified sites

Know it's the real one before you type a password.

Caspian carries a curated, cryptographically signed list of genuine sites. On one of them, a check appears in the address bar, on the tab and in site info. A lookalike simply has no check, and that absence is the tell.

PPayPal
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7

A padlock only means the connection is encrypted; a lookalike can have one too. The check means the site is on the list.

Blue means verified

Banks, payment services, stores and the tools you sign into every day. If the badge is there, you are where you think you are.

Purple means government

Tax, licensing, benefits and official portals get their own colour, so a copycat asking for your ID has nowhere to hide.

Signed, not scraped

The list is signed with Ed25519 and Caspian ships the public key. A tampered download or a hijacked update is simply ignored.

Certificate details, one click

Click the lock for the issuer, validity and chain, without leaving the page, on any site, verified or not.

Phishing works because the page looks right. Caspian checks the address against a list nobody can quietly edit, and puts the check where you are already looking. No check, no trust.
Try it
Everything included

The things you'd install extensions for. Already there.

No add-ons to trust, no toolbars to tidy. Caspian ships whole.

  • Ads and trackers, gone

    EasyList and EasyPrivacy filtering built into the engine, cosmetic hiding, YouTube ad pruning and a pop-up guard. Per-site allow list when you want it off.

  • Split view

    Two or more tabs side by side inside one tab. Research on the left, notes on the right.

  • Tabs that behave

    Coloured, collapsible tab groups, pinned tabs, drag to detach, tab search, and a hover card with a live preview and memory use.

  • Media player & torrents

    Downloaded video and music play in Caspian with subtitles, speed and picture-in-picture. Magnet links download inside Downloads and stream while they arrive.

  • Family controls

    Parent PIN, category blocking, allow and block lists, SafeSearch, daily limits and allowed hours.

  • Verified sites

    A signed list of real sites. Blue check for the genuine article, purple for government. Lookalikes get nothing.

  • Private windows

    Off-the-record profile in a tinted window. Nothing written to disk when you close it.

  • Three themes, your accent

    Dark, Midnight or Light with an accent palette. Applies instantly, no restart.

  • Real DevTools

    Chromium DevTools docked bottom or right, or undocked. Inspect element, console, device mode, view source.

  • Screenshots

    Capture the visible page or the whole thing, copy or save from a glass card.

  • Updates that just happen

    Signed builds download in the background and install on restart. Stable, beta, alpha and dev channels.

  • Per-site switches

    JavaScript, images, autoplay and sound, per site, from the site-info popover.

Privacy & security

Private by default, not by settings.

The blocker runs inside the engine, so trackers never load in the first place. HTTPS-only, third-party cookie blocking, Do Not Track and Global Privacy Control are all on from the first launch.

  • EasyList + EasyPrivacy with element hiding and auto-refresh
  • WebRTC IP protection and fingerprinting protection
  • Site-info popover shows exactly what was blocked
  • Clear browsing data whenever, private windows for the rest
Privacy dashboard
This week
0
requests blocked
  • Ads & trackers
    EasyList + EasyPrivacy, built in
  • HTTPS-only mode
    Upgrades every request it can
  • Fingerprinting protection
    Canvas, fonts, WebRTC IP
  • Third-party cookies
    Blocked by default
  • Do Not Track + GPC
    Sent with every request
Tabs & split view

Two pages, one tab.

Right-click a tab and add it to a split view. Both sides stay live, both get their own address bar, and the pair moves around like any other tab.

  • Coloured, collapsible tab groups
  • Drag a tab out to make a window; drag it back to snap it in
  • Tab search across every window
  • Hover any tab for a live preview and memory use
Research · NotesMailDesign
en.wikipedia.org/wiki/Caspian_Sea
notes.app/field-journal
Media & torrents

A player, not a plug-in.

Video and music you download play right in Caspian: glass controls that slide in on hover, subtitles from sidecar files or HLS, playback speed, and a floating picture-in-picture window.

  • HLS and DASH stream links open in the player
  • Magnet links and .torrent files download inside Downloads
  • Play a torrent while it's still arriving
  • H.264, AAC, HEVC and Widevine, so streaming services work
17:51 / 47:00
CC1.0×PiP
Deep-Sea-Documentary-2160p.mkvstreaming · 12 peers
Family

Set it up once. Lock it with a PIN.

Supervision lives in the browser, not in an app you have to remember to open. Block categories, keep an allow list, force SafeSearch and give the day a limit.

  • Category blocking with downloaded lists
  • Daily time limits and allowed hours
  • Per-site allow and block lists
  • Locks that a curious kid can't switch off
Family
Supervision on · PIN protected
Adult content
Gambling
Social media
Games
Screen time today1h 20m of 2h
SafeSearch onAllowed 7:00–20:00Allow list · 12 sites
Appearance

Dark, Midnight or Light.

Pick a theme and an accent in Settings. It applies while you watch.

Dark
Midnight
Light
Keyboard first. Every shortcut you already know.
⌘TNew tab⌘⇧TReopen closed⌘LAddress bar⌘⇧ATab search⌘⇧NPrivate window⌘FFind⌘JDownloads⌘YHistory⌘⇧BBookmarks barF12DevTools⌘,Settings⌘1…9Jump to tab⌘⇧RHard reload^⌘FFull screen⌘TNew tab⌘⇧TReopen closed⌘LAddress bar⌘⇧ATab search⌘⇧NPrivate window⌘FFind⌘JDownloads⌘YHistory⌘⇧BBookmarks barF12DevTools⌘,Settings⌘1…9Jump to tab⌘⇧RHard reload^⌘FFull screen
Under the hood

Chromium underneath. Nothing from Google on top.

Every site renders exactly as it does in Chrome, with the same engine and the same codecs. The account sign-in, sync, Safe Browsing lookups and telemetry are not there. Caspian talks to its own update server and nowhere else.

Ready when you are.

Free, no account, imports your bookmarks and history from Chrome, Edge, Firefox or Safari on first run.

Want beta, alpha or dev builds?