LIVE ON CHROME & FIREFOX

The Firewall for Humanity.

AI has learned to sound exactly like us, and it's already in your DMs, your inbox, and your dating apps. Deckrd watches your conversations locally on your device and tells you when the other side isn't human. Know who you're really talking to.

DetectAI in chats, calls & video
Protectyour voice from cloning
Verifya voice is genuine to people you trust
Free, no account required Local detection: your messages never leave your device 11 detectors running in ensemble
// deckrd · live analysis v0.9.0002
tinder_match"Sophie"
▲ AI DETECTED
linkedin_dmSaaS recruiter
● HUMAN
sms"Your bank account"
▲ AI DETECTED
x_dm@techfounder
◎ ANALYSING
▸ click to try the live demo
// the firewall for humanity

There are two ways to solve the bot problem.
One of them costs you your privacy.

Generative AI has crossed the line at which most people can no longer reliably tell. There are only two ways to solve the bot problem at scale. The platforms and governments are converging on one of them. We're building the other.

PATH A · PROVE EVERY HUMAN

Mandatory digital ID.

Iris scans. Personhood proofs. Government-linked credentials tied to every account.

Solves the bot problem at the cost of forcing every human onto a permanent identity rail. Once that rail exists, it doesn't come down.

PATH B · DETECT EVERY BOT

Deckrd.

Detection runs on the AI side of the conversation. Humans are never forced to prove themselves, but you can verify your voice to the people you trust.

Solves the bot problem without trading away human privacy to do it.

Humans never have to prove anything to us. The burden of proof stays on the bots, and you decide who gets to verify your voice.
// why deckrd

The human pulse is fading.

AI is getting better at sounding human, in your inbox, your DMs, your dating apps, even your family's phone. Deckrd is the layer of truth between you and the bots.

Protect your voice

Every video call app now has an uninvited AI note-taker. Some of them are training voice models on you. Deckrd Protect stops your voice being cloned or transcribed, and Verify lets family hear it's really you.

Dating & social

The perfect match who always says the right thing. The new follower sliding into your DMs. When the chemistry feels too good to be scripted, Deckrd lets you know if it actually is.

Protecting family

When your parents get a scam call with a cloned voice of their child, or a text "from the bank" asking them to verify their account, Deckrd Detect catches the bots, and Verify shows trusted family “✓ Verified” when it's really you.

Recruiting & hiring

The candidate acing your interview in real time, is it them, or their AI? Make sure the person you're hiring is the one actually doing the talking.

// verify

Passkeys for your voice.

Humans are never forced to prove themselves. Verify is opt-in cryptography for your trusted circle, so family and close contacts can hear it's really you, speaking live, not a recording or a clone.

◐ desktop alpha

While you talk, your Mac stamps your voice with a continuously refreshed signature only your device can produce. Contacts you've paired with see ✓ Verified. A perfect AI clone still can't forge it, because the clone doesn't have your key. No voiceprint is ever stored.

Not mandatory digital ID

Verify is a private, voluntary trust layer for people you choose, the opposite of forcing every human onto a permanent identity rail. Pair once out-of-band, then every call is checked automatically.

01

Pair a trusted contact: exchange identity keys and confirm a short SAS code out-of-band, like Signal safety numbers.

02

Start a call: Deckrd handshakes over a secure relay when you connect, and identity is confirmed within seconds of first speech.

03

See the verdict: “✓ Verified” for the real person speaking live, “⚠ Unverified” for a recording, relay, or clone.

// how it works

One install, nothing to configure.

Add Deckrd to your browser and every conversation you open from then on gets checked, each one given a verdict with a confidence score.

STEP 01

Install in seconds

Grab the browser extension from the Chrome Web Store or Firefox Add-ons. One click, no account, no setup. Launch the extension and Deckrd goes to work.

STEP 02

Deckrd watches silently

Our ensemble engine evaluates every conversation locally on your device. Nothing leaves your machine.

STEP 03

Get real-time verdicts

A clear, instant signal the moment the engine crosses its confidence threshold. You'll see Human, AI Detected, or Analysing, so you're never left guessing.

// what makes deckrd different

It works without being asked.

Deckrd installs once and runs quietly in the background. When you open a conversation, it surfaces a verdict the moment one is reachable, without you ever asking, without your messages ever leaving your device.

Passive monitoring + active alerts

Other tools require you to copy and paste a suspicious message into a checker. By then it's too late. Deckrd watches in real time and tells you. You never have to suspect: we tell you when there's something to suspect.

Ensemble detection

Eleven independent local detectors running simultaneously. When generators get better at one signal, the others still hold.

Privacy-first by architecture

Patterns analysed on your device. Nothing leaves your machine. Deckrd sees structural shape, never message content.

DECKRD vs. COPY-AND-PASTE

Pasting messages into a third-party checker means the user has to already suspect a bot to find one, and means the message is uploaded somewhere. Deckrd watches the conversation as it happens, on-device, and tells you when it sees something. That's the category split.

// for security teams

The next phishing attack won't arrive as an email.

It will arrive as a conversation: helpdesk impersonation that adapts in real time, synthetic candidates in your hiring pipeline, cloned executive voices on the phone. Your stack inspects links, attachments, and content. Nothing in it asks whether the other party is human. Deckrd answers that question in real time.

Social engineering at machine scale

Deckrd flags synthetic counterparties in the chat surfaces your people already use, on-device, without reading message content.

Available today

The Detect engine ships as an SDK and REST API for text channels. Voice detection is developed and pending release.

Executive voice authentication

Deckrd Verify gives executives a cryptographic liveness signature that a perfect clone can't forge, because the clone doesn't have their key.

DESIGN PARTNERS

We're onboarding a small number of design partners ahead of general availability, with direct input into the enterprise roadmap and preferred pricing at launch. Talk to us: [email protected]

// the roadmap

One engine, headed for every place a conversation happens.

Deckrd is three capabilities on one engine: Detect, Protect, and Verify, scaling across chat, voice, video, and every device where conversations happen.

CAPABILITY // what deckrd does
1
detect
● chat live · extension + SDK
2
protect
AntiClone + Cloak · developed, pending release
3
verify
◐ desktop alpha · opt-in trusted circle
MODALITY // the arms race
1
chat
● available now
2
voice
developed · pending release
3
video
r&d
4
in-person
the updated Voight-Kampff test, future vision
SURFACE // where the conversation lives
1
browser_extensions
● available now · Chrome & Firefox · Safari in review
2
desktop_app
macOS alpha live // Windows next
3
mobile
on the roadmap, iOS + Android
4
wearables / ambient
follow the surface where it goes
// install

Get Deckrd.

Free during the open beta. Installing takes seconds, with no account and no friction.

BROWSER EXTENSION · LIVE

For everywhere you chat in your browser.

Detects AI across the chats you already use. ChatGPT, Discord, WhatsApp Web, Messenger, LinkedIn, X DMs, and more.

Chrome // Firefox // Safari (in review)
DESKTOP APP · ALPHA

Detect, Protect, and Verify across your whole machine.

Detect AI on calls and in native chat apps. Protect your voice on Zoom, Meet, Teams, and every app using your mic. Verify a voice is genuine to family and trusted contacts, available now in the macOS alpha.

macOS alpha live // Windows planned
DECKRD SDK · DETECT TODAY

Drop AI detection into anything you build.

The same Detect engine that powers the extension, exposed as @deckrd/sdk. Protect and Verify APIs ship later. Free tier: 10,000 detections/month.

npm SDK // REST API // server-side

Using a mobile device? It's on the roadmap.

The browser extension covers desktop today. iOS and Android are next. Drop your email and we'll tell you the moment mobile and other capabilities ship. No spam, just product updates.