A score for every page
Each page you open gets a score from 0 to 100 and one of three labels: No strong AI signs, Possibly vibe coded or Likely AI-built. A score is an estimate, not proof.
Runs on: Mac and Windows
Less AI. Less slop. 52 features.
Every Kitsuvo feature,
in one place.
Filter likely AI-built sites and inspect the evidence. Give your LLM a browser through MCP. Keep the checks on your computer, with no telemetry. Each feature below says where it runs.
How to read this page
One promise, three proofs. Kitsuvo filters likely AI-built websites and shows its evidence, gives your LLM a browser through MCP, and keeps its checks on your computer.
Every card says where it runs. 38 of the 52 features here run on Mac and Windows today. The other 14 say which platform or Mac version they need.
Each group has an example to try. The examples are illustrative: they contact no website and no model.
Website filtering
Filter likely AI-built websites, and see why.
Kitsuvo checks the pages you open for traces of AI website builders, scores them and lists the evidence. With filtering on, matching results fold away on Google, Bing and DuckDuckGo. You can show any hidden result, correct a verdict or switch filtering off.
Kitsuvo can miss new or heavily changed websites. A score is an estimate, not proof of how a site was made.
Evidence level
Search results
Search for weekend in Kyoto
The ultimate guide to Kyoto caféskyoto-guide.lovable.appHidden by KitsuvoBuilder domainScore 78
Ten ramen spots you cannot missramen-roundup.exampleHidden by KitsuvoScored Likely AI-builtScore 74
Three slow days in Kyotoslowtravel.exampleHidden by KitsuvoScored Possibly vibe codedScore 52
A tiny coffee bar worth the detourfieldjournal.exampleScore 18
What this level hides
123of 4 results hidden
Explicit evidence only. Builder fingerprints, AI-service domains and labelled content are hidden. Estimates hide nothing.Likely AI, the default. Sites you opened that scored Likely AI-built are hidden too.Possible AI. Scores from 40 are hidden too. This can hide human work; you can show any hidden result.
Illustrative sites and scores. Nothing here contacts a website.
- Choose how much evidence the filter needs.
- Watch which results fold into a hidden line. Scores stay on show.
- Read what the level hides. Each group below has an example like this one.
The builder, by name
Kitsuvo names builders such as Lovable, Bolt, v0, Replit and Base44 when a trace is present, such as a hosting domain, a runtime script or a default tag. That includes sites on custom domains.
Runs on: Mac and Windows
Evidence beside the page
Kitsuvo’s read sits in a pane beside the page and lists the signals behind every score. Open a clue to see its trace, then copy the evidence report.
Runs on: Mac and Windows
Filtered search results
On Google, Bing and DuckDuckGo, results on AI-builder domains and sites already scored Likely AI-built fold into one “Hidden by Kitsuvo” line. Kitsuvo never opens a result you did not open.
Runs on: Mac and Windows
A notice before the page
Links to likely AI-built pages wait behind a short notice. One click shows the page anyway.
Runs on: Mac and Windows
Per-site choices
Always allow a site, or always hold it. Searches for a site by name keep its result visible with its verdict.
Runs on: Mac and Windows
Your evidence level
Choose how much evidence the filter needs before it hides something: explicit evidence only, likely AI or possible AI. The loosest level accepts more false positives.
Runs on: Mac and Windows
Separate switches for kinds of AI
Independent local controls cover AI service sites, AI-built websites, declared AI-written content, identifiable generated media and search answers. Unlabelled or unreadable content can pass.
Runs on: Mac and Windows
Low-value content, checked separately
A separate local check flags signs of mass-produced filler: pasted chatbot replies, unfinished templates and ad-heavy pages. Slop findings inform your choice; they do not prove AI authorship.
Runs on: Mac and Windows
Warnings for look-alike sites
A separate warning flags high-confidence combinations of look-alike addresses and forms that ask for a password or card. AI construction alone does not mean a site is unsafe.
Runs on: Mac and Windows
Wrong verdict? Say so
Mark a site as not AI-built and it stays visible. Corrections stay on your computer, and Kitsuvo learns from them where you draw the line.
Runs on: Mac and Windows
A site, not one page
Kitsuvo judges a site by most of its pages, not only the one you landed on.
Runs on: Mac and Windows
Response-header checks
On Windows, builder traces in a site’s response headers count as evidence too.
Runs on: Windows
New to AI-built websites? Read the guide to spotting them. Check a public website for AI builder evidence.
Browse with your LLM
Give your LLM a browser, and keep the Stop control.
Kitsuvo gives an AI client a desktop browser through the Model Context Protocol (MCP). Your LLM opens pages, reads them and acts on them in a separate agent profile while you follow along. Connecting is optional: you can browse and filter websites without an AI client.
Page text, snapshots, screenshots and reports requested through MCP are shared with the AI client you connected.
- browser_navigate
- browser_snapshot
- browser_get_text
- browser_click
- browser_type
- browser_select_option
- browser_press_key
- browser_hover
- browser_tabs
- browser_wait_for
- browser_resize
- browser_take_screenshot
- browser_evaluate
- browser_navigate_back
- browser_navigate_forward
- browser_reload
- browser_status
- browser_cleanup
- kitsuvo_report
MCP browser tools
A connected client can navigate, read page text and accessibility snapshots, click, type, select options, press keys, hover, wait and manage tabs.
Runs on: Mac and Windows
Setup for the client you use
Guides cover Claude Code, Codex and ChatGPT desktop, Claude Desktop, and other local MCP clients such as Cursor, VS Code and Gemini CLI.
Runs on: Mac and Windows
A separate agent profile
Agent browsing uses its own profile, apart from your everyday cookies, history and bookmarks. Sensitive sign-in pages and password fields are refused by default.
Runs on: Mac and Windows
A visible Stop control
Watch the pages your client opens. Stop refuses further browser requests until Kitsuvo restarts.
Runs on: Mac and Windows
Detection evidence as a tool
kitsuvo_report returns the AI-built, slop and impersonation evidence for a page, so your client can give reasons with its answer.
Runs on: Mac and Windows
Responsive checks on request
Your client can resize the browser to a device size or custom dimensions and inspect how the rendered page changes.
Runs on: Mac and Windows
Screenshots
Viewport screenshots work on Mac and Windows. Full-page capture is Windows only.
Runs on: Viewport on both, full page on Windows
A plugin with four skills
The plugin bundles the MCP server with skills for setup, browsing, detection evidence and responsive checks. No API key is needed for local browser automation.
Runs on: Mac and Windows
See which chat is in control
Agent sessions show Codex and Claude activity, the tab in use and a link back to the originating chat when available.
Runs on: Mac 0.2.10 or later
A fast local control loop
In a local comparison on October 11, 2026, Kitsuvo had the lowest median in each of five browser-control workflows. Results vary between runs and transports. Read the scoped MCP benchmark.
Runs on: Mac and Windows
Ready to connect? Set up Kitsuvo MCP browsing. Try practical LLM browsing tasks.
Local first
Checks run on your computer. No telemetry.
Local browsing checks are free and need no account, API key or cloud AI. History, bookmarks and verdict corrections stay on your machine. Websites still receive normal browsing traffic, and a connected MCP client receives the tool results it requests.
One switch for what Kitsuvo itself sends.
Local only refuses Kitsuvo’s cloud AI requests and pauses update checks. The websites you open still receive normal browsing traffic.
- Websites you openNormal browsing traffic
- Local checksOn this computer
- A model you installedOn this computer
- Update checkOnce a day, signedPaused
- Kitsuvo cloud AI requestsOnly if you enable themRefused
Local only is off. Update checks carry nothing about your browsing.Local only is on. Cloud AI and update requests stop. Websites and searches still connect normally.
No telemetry
The browser has no telemetry. Detection runs on your computer.
Runs on: Mac and Windows
No account, key or cloud AI
Local checks work without an account, API key or cloud AI. Optional AI-based checks are separate and only run when enabled.
Runs on: Mac and Windows
Local only
One switch refuses Kitsuvo’s cloud AI requests and pauses update checks. Pages still load, and a model on this computer still works.
Runs on: Mac and Windows
Private tabs
Open a private tab when a visit should stay out of your history and your saved session.
Runs on: Mac and Windows
Sign-in pages left alone
Identity-provider pages are excluded from analysis, and agents are refused sensitive sign-in pages and password fields by default.
Runs on: Mac and Windows
Optional local models
Install a text or vision model yourself through Ollama for written explanations and estimates. Cloud verdicts never decide the filter.
Runs on: Mac and Windows
Export or erase your data
Export what Kitsuvo stores, or erase it, from Settings.
Runs on: Mac and Windows
Signed updates
Kitsuvo checks a signed update feed, verifies each download against its signing key and installs when you restart. Local only pauses the checks.
Runs on: Mac and Windows
Optional page-text history search
Choose whether history searches include saved page text. It starts off, keeps at most 6,000 characters per page across 2,000 recent pages, and skips private tabs and sign-in pages.
Runs on: Mac 0.2.11 or later
Named profiles
Open named profiles with separate website data, history, bookmarks and browser settings. Mac profiles need macOS 14 or later.
Runs on: Mac 0.2.11 or later
See how Kitsuvo handles browsing data. See what each installer prompt means.
Everyday browsing
The browser you use between AI tasks.
Browse normally without connecting an AI client. Keep your work organized, read with fewer distractions and give background tabs a rest.
Idle tabs give their memory back.
A tab you leave rests, then freezes, then sleeps after 30 minutes. A tab that would lose something stays awake.
- Recipe draftUnsaved formAwake
- Evening radioPlaying soundAwake
- Flight searchBackground tabUsing less memoryFrozenAsleep
- Museum opening hoursBackground tabUsing less memoryFrozenAsleep
Just left. Background tabs are asked to use less memory.A few minutes on. Idle tabs are frozen; the two protected tabs are untouched.Thirty minutes on. Idle tabs sleep and reload when you return.
Tabs at the side
The address bar sits on top and tabs live in a side rail with score badges. The start page works as a launcher.
Runs on: Mac and Windows
Tab groups
Combine tabs into named, coloured groups, return to recent tabs and close all tabs from the rail’s menu.
Runs on: Mac and Windows
Bookmarks, history and downloads
Each has its own library view, with portable HTML bookmark import and export.
Runs on: Mac and Windows
Reader mode, find and zoom
Read with fewer distractions, find on the page and zoom.
Runs on: Mac and Windows
Command bar
The command bar gives you quick access to browser actions from the keyboard.
Runs on: Mac and Windows
A read pane that moves
Dock Kitsuvo’s read on either side of the page or pop it into its own window.
Runs on: Mac and Windows
Sleeping tabs
Background tabs can freeze and sleep to free memory, then reload when you return. Tabs with unsaved forms, sound or other protected activity stay awake.
Runs on: Mac and Windows
Memory and CPU view
Check what Kitsuvo and your tabs are using in the local performance view. The measurements stay on your machine.
Runs on: Mac and Windows
Responsive mode
Preview phone, tablet and desktop sizes, rotate the frame or enter custom dimensions. Touch emulation is available on Windows; Mac supports the responsive frame.
Runs on: Frame on both, touch on Windows
Developer tools
Developer tools are on by default.
Runs on: Mac and Windows
Guided settings
Settings is grouped into Basics, AI, Privacy and More, with search and a “Show me around” guide.
Runs on: Mac and Windows
Keyboard link hints
Follow visible links and controls with keyboard hints. Copy selected text with its source, or copy a Markdown quote.
Runs on: Mac 0.2.11 or later
Eco, Balanced and Performance
Three resource modes set how soon idle tabs freeze and sleep. Eco rests them sooner.
Runs on: Mac 0.2.13 or later
Quiet YouTube and Reddit
Quiet YouTube hides related videos, Shorts shelves and comments. Quiet Reddit hides sidebars and promoted posts. Reader typography is adjustable too.
Runs on: Mac 0.2.13 or later
Read the latest desktop release notes. Prefer your current browser? Try the detector extension preview.
Personalization
The browser stays free. Make it yours.
Themes, saved setups, project workspaces and a local terminal arrived in Mac 0.2.13. Kitsuvo Plus is an optional paid collection that raises their limits and adds encrypted folder snapshots.
The browser, MCP tools and local filtering are free, with or without Plus. Plus includes no provider keys or AI usage.
| Feature | Free | With Plus |
|---|---|---|
| Themes | 3 | 6 |
| Saved setups | 3 | 32 |
| Project workspaces | 1 | 32 |
| Local terminal | Included | Included |
| Manual encrypted folder snapshots | Not included | Included |
Themes
Three themes are free. Plus adds Autumn fox, Moss garden and Sakura, for six. Themes change Kitsuvo’s frame; verdict colours keep their meaning.
Runs on: Mac 0.2.13 or later
Saved browsing setups
Save three browsing setups for free. Plus raises the limit to 32.
Runs on: Mac 0.2.13 or later
Project workspaces
Keep a project’s tabs and local folder together. One workspace is free; Plus raises the limit to 32.
Runs on: Mac 0.2.13 or later
A local terminal
Approve a local shell in a folder you choose. The terminal is free.
Runs on: Mac 0.2.13 or later
Encrypted folder snapshots
With Plus, snapshots of bookmarks, portable preferences and saved setups are encrypted with your passphrase before Kitsuvo writes them to a folder you already sync. History, cookies and credentials are excluded.
Runs on: Plus, Mac 0.2.13 or later
Plus is $6 a month or $60 a year, and Windows Plus qualification is pending. See what Plus adds. Read the Plus terms.
Mac and Windows
What runs where.
Kitsuvo is a desktop browser for Mac and Windows. The Mac build has had more recent releases, so some features reach it first. This table and the key on every card say where each one runs today.
| Feature | Mac | Windows |
|---|---|---|
| Current version | 0.2.16 | 0.2.4 |
| Filtering, scores and evidence | Yes | Yes |
| MCP browser tools and the Stop control | Yes | Yes |
| Viewport screenshots | Yes | Yes |
| Full-page screenshots | Not available | Yes |
| Touch emulation in responsive mode | Not available | Yes |
| Response-header checks | Not available | Yes |
| Agent sessions, named profiles and link hints | 0.2.11 or later | Not in 0.2.4 |
| Themes, saved setups, workspaces and terminal | 0.2.13 or later | Not in 0.2.4 |
| Kitsuvo Plus | 0.2.13 or later | Qualification pending |
| Installer | Signed and notarized | Unsigned |
Apple silicon and Intel Mac installers are available. Phone apps are not publicly listed yet, and the browser extensions are developer previews without the desktop MCP server. Choose your installer. Read the release notes.
Questions about Kitsuvo’s features
Which Kitsuvo features are free?
The browser, MCP tools and local filtering are free. Kitsuvo Plus is an optional paid collection for desktop personalization and encrypted folder snapshots, and it includes no provider keys or AI usage. See the pricing page for current plans.
Do all features work on both Mac and Windows?
No. Filtering, scores, evidence and MCP browser tools work on both. Full-page screenshots, touch emulation and response-header checks are Windows only. Named profiles, keyboard link hints, themes, saved setups, workspaces, the local terminal and Plus shipped in Mac releases after the current Windows build. Each feature on this page says where it runs.
Do I need an AI client to use Kitsuvo?
No. Connecting an AI client is optional. You can browse and filter websites without an AI client, subscription or provider key. The setup guide covers connecting one.
Does Kitsuvo hide every AI-generated page?
No. Kitsuvo filters supported likely AI-built websites and labelled AI content it can identify. Detection depends on recognizable traces, which can change or be removed, so unlabelled or unreadable content can pass. You can show any hidden result.
Are these features in the mobile apps and extensions?
The phone apps are not publicly listed yet and have a narrower feature set, without the desktop MCP server. The browser extensions are developer previews with local builder checks and optional search filtering. See the extension previews.
Where can I see what changed in each release?
The changelog lists what each Kitsuvo release adds and fixes, by version and platform. Read the release notes.