About Cloak

Help that arrives during the conversation.

Cloak is an invisible AI copilot for meetings and interviews. It listens to your call, understands what's being asked, and whispers exactly what to say — without ever showing up on a screen share. We built it because the most useful moment for AI isn't the recap afterward. It's now.

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Invisible

Excluded from screen capture

Local-first

BYOK · your data stays yours

MIT

Open source

macOS · Win · Linux

One app, every desktop

Why we built it

Every meeting tool we tried did its best work after the call was over — a tidy summary, an action-item list, a transcript to scroll through. Helpful, but the pressure is never in the recap. It's in the live moment: the question you didn't expect, the number you have to name, the explanation you need to get right the first time.

So we built the opposite. Cloak sits on the call with you, invisible to everyone else, and turns "I'll figure that out later" into an answer you can use right now — grounded in your résumé, the role, and who you're talking to. It runs on your own machine and your own keys, because the help that matters most is also the most personal.

What Cloak actually does

Four parts, one job: be the smartest, quietest person in the room.

It listens to the room, invisibly.

System-audio capture taps the call directly — both sides of the conversation — and a live speech-to-text pipeline keeps a rolling transcript. The control surface floats on top of every app and stays out of every screenshot.

It answers in your voice, grounded in your story.

Résumé, job description and custom context load as live signals, so answers come back rooted in your actual work — not boilerplate. Seven modes cover the moment you're in: a direct answer, exact phrasing to say, a fast brainstorm, a catch-up recap, and more.

It knows who you're talking to.

Point Cloak at a company and it builds a dossier — culture, stack, interview style, recent news — from live web search, then folds that into every answer. Web grounding keeps responses current instead of frozen at training time.

It works the way you want to pay.

Multi-provider fallback means Cloak runs on whatever keys you have, or on a managed gateway with quota. Free forever on your own keys; upgrade only when you want managed AI, speech, and web search handled for you.

What we stand on

Invisible by design

The overlay is excluded from screen capture and recording at the OS level — it never shows up in Zoom, Teams, or Meet shares. Stealth isn't a setting you remember to turn on; it's the default.

Your keys, your data, your call

Bring your own keys for OpenAI, Anthropic, Gemini, Groq or DeepSeek — or use a managed plan. Transcripts and context live on your machine. Cloak is local-first, not a data funnel.

Real-time or nothing

Notes after the meeting are easy. Help during it is the hard, valuable part. Cloak captures system audio, transcribes live, and streams an answer while the question still hangs in the air.

Open and honest

Cloak is open source and built on the MIT-licensed AFFiNE editor base. You can read exactly what runs on your machine — no black box, no telemetry you didn't agree to.

Built in the open

Cloak stands on the shoulders of the MIT-licensed AFFiNE editor base for its local-first knowledge workspace, with the invisible overlay, audio capture, and AI copilot built on top. The source is public — read it, fork it, or open an issue.

View Cloak on GitHub

Who's behind it

Maker of Cloak

Harsh Solanki

Harsh builds Cloak solo — the invisible overlay, the audio + STT pipeline, the multi-provider AI, and the web parity. Cloak is an independent, open-source project built on the MIT-licensed AFFiNE base.

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How Cloak compares

Honest comparisons to the tools people reach for. Cloak's edge is the live moment — invisible, local-first, and on your own keys.

Cloak vs Cluely

Cluely pioneered the invisible interview assistant, but it's closed and cloud-bound. Cloak is open source and local-first: bring your own OpenAI/Anthropic/Gemini/Groq keys (or a managed plan), keep transcripts on your machine, and run a build you can actually inspect. Pick Cluely for a hosted-only product; pick Cloak if you want ownership, BYOK, and no vendor lock-in.

See the Cluely comparison

Cloak vs meeting note-takers

Otter, Granola and friends are great at the recap — transcripts and summaries after the call. Cloak works during it: it whispers what to say while the question is still on the table, invisibly, then still hands you structured notes at the end. Pick a note-taker for archives; pick Cloak when the live moment is what counts.

See the live-assistant guide

Cloak vs alt-tabbing to ChatGPT

Pasting a question into ChatGPT works — until you're on screen share and the tab-switch gives you away, or you're typing while you should be listening. Cloak hears the question automatically and answers in an overlay only you can see, grounded in your résumé and the role. Pick a chatbot for solo prep; pick Cloak for live calls.

Compare technical AI tools

More breakdowns in resources.

Try it on your next call.

Free on your own keys, forever. macOS, Windows, and Linux.

Download Cloak — free

macOS · Apple Silicon & Intel · 207.0 MB · v0.2.3

Help that arrives during the conversation.

Why we built it

What Cloak actually does

It listens to the room, invisibly.

It answers in your voice, grounded in your story.

It knows who you're talking to.

It works the way you want to pay.

What we stand on

Invisible by design

Your keys, your data, your call

Real-time or nothing

Open and honest

Built in the open

Who's behind it

Harsh Solanki

How Cloak compares

Cloak vs Cluely

Cloak vs meeting note-takers

Cloak vs alt-tabbing to ChatGPT

Try it on your next call.

How to install Cloak

Extract the ZIP

Move to Applications

macOS security check

One-line fix (if blocked)

On Windows or Linux?

Windows

Linux

All versions & platforms

macOS

Windows

Linux