100% on-device · cross-LLM

See the answer.
Not the wall of text.

HoloChart projects any LLM's answer into an instant, living chart — ChatGPT, Claude, Gemini, Mistral, Perplexity and local Ollama. It assembles on your screen as the model types, entirely on your device. Even the share watermark doesn't track you.

No data leaves your browser · no second LLM · no telemetry · no ads, ever
Reads the answer on: ChatGPTClaudeGemini MistralPerplexityOllama / Open WebUI
Before → after

Watch the chart assemble itself.

A rule-based, on-device visualizer — not an AI system itself. It reads the structure inside the answer and draws the clearest chart, live as it streams.

The answer, raw

Here is how the three plans compare by monthly revenue: | Plan | Monthly revenue (EUR) | | ---- | --------------------- | | Free | 0 | | Nautilus | 31,400 | | Team | 18,600 | Nautilus is clearly the biggest driver.

HoloChart, live

Bottom line
Nautilus leads monthly revenue: 63% of the total, 1.7× the runner-up (Team).
31,400 18,600 0 Nautilus Team Free holochart.app
100% local · no data leaves the browser · no second LLM
Capabilities

One panel. Every model. Zero egress.

Live as it streams

The HoloGlass panel assembles while the model is still typing — bottom-line first, chart refining in real time.

Structurally private

Zero network calls with your content — verified by a no-egress build gate. Zero extension telemetry, no tracking pixel. Not even in the watermark.

Works on local models

The only AI-answer visualizer that also works with local Ollama — cloud artifact features cannot access your local instance.

Speaks your language

Auto-configures at install; switch language live and the result — numbers, currency, even RTL — updates instantly.

One-click share

Export the chart as PNG/SVG. The branding travels with it — turning every share into a quiet referral.

EU-clean by design

GDPR-clean by construction; under the EU AI Act it's a rule-based visualizer of third-party output, not a provider of an AI system.

Architecture, not a setting

Privacy isn't a toggle. There's nothing to toggle off.

Your prompts and the model's answers never leave the page — there is no server to send them to.

No second LLM

Detection is rule-based and local. We never send your text to another model to "understand" it.

No telemetry

Usage counters (like trigger-rate) live only in your browser's local storage, surfaced only to you.

Tracking-free watermark

The share watermark is static shapes and text — no pixel, no ID, no callback.

Fair · no ads · bootstrapped

Free is genuinely free. Nautilus is the polish.

All LLMs are free, forever. Nautilus removes the watermark, adds history, exports and multi-device.

Free
€0
All LLMs · watermark
Nautilus
€7/mo
no watermark · history · export
Team
€29/mo
per seat
Lifetime
€99
Nautilus forever · capped 300
Two minutes

Install HoloChart

Free, no account, no card. Browser Extension + Desktop App — one license covers everything.

Beta · v0.3.2
macOS
Apple Silicon (M1 · M2 · M3 · M4)
Desktop App — reads any LLM app Browser Extension (Chrome + Firefox) One license, all platforms
Get started — macOS →

Signed & notarized — Gatekeeper accepted.
Step-by-step guide at install.html.

Coming soon
Windows
Windows 10 / 11 (64-bit)
Desktop App — UI Automation engine Browser Extension (Chrome + Firefox) One unified installer (.exe)

Get notified when it's ready:

Coming soon
Linux
AppImage · .deb (Ubuntu/Debian)
Desktop App — AT-SPI2 engine Browser Extension (Chrome + Firefox) One unified installer

Get notified when it's ready:

Browser only? Skip the desktop app: v0.3.2

One license covers browser extension + desktop app on all platforms — now and when Windows & Linux launch. DOM selectors for each LLM are kept up-to-date with each site change.

Good questions

Everything, answered.

Does HoloChart send my prompts anywhere?

No. Detection and rendering happen entirely in your browser. There are zero network calls with your content — enforced by a build-time no-egress gate. The only optional network call is a license check for Nautilus, which never includes your content.

Is HoloChart an AI system under the EU AI Act?

No. HoloChart is a rule-based visualizer of another model's output — it does not itself perform inference or generate content. It's GDPR-clean by construction.

Which LLMs are supported?

ChatGPT, Claude, Gemini, Mistral, Perplexity, and local Ollama / Open WebUI. All of them are available on the free tier; Nautilus removes the watermark and adds history, exports and multi-device.

Why does it work on local models when cloud tools don't?

Because HoloChart runs on-device and reads the rendered answer in your browser. Cloud "artifacts" features can only see content inside their own product — they can't reach your local Ollama.

What does the watermark contain?

Only the static text "holochart.app" and our logo tile — no tracking pixel, no unique ID, no network callback. Nautilus removes it entirely.