SignMog Open SignMog

Speech to ASL, live

Every word, in their hands.

Talk, type, or play a video with captions. Sig or Sia signs it in American Sign Language as you go. Sign back to the camera, and SignMog says it out loud.

Free. No account. Nothing to install.

Sig, live in 3D. Every sign is drawn as it happens, not played from a video.

How it works

Say it. See it signed.

Three steps, and the conversation goes both ways.

  1. 1

    Speak or type

    Talk into the mic, type a sentence, or open the side panel on a page with captions.

  2. 2

    Sig or Sia signs it

    Your words become ASL signs, with the facial expression that goes with them. A word with no sign yet is fingerspelled, never guessed.

  3. 3

    Sign back

    Turn on the camera and sign. SignMog reads your hands on your own device and says the words out loud.

What it does

Talk, type, sign, learn.

One app, both directions, and a way to learn the language along the way.

  • Live speech to sign

    Talk at your normal pace. The twin signs a beat behind you, and the sign on the hands right now lights up in the gloss.

  • Type to sign

    Type a sentence and press Sign. Good for a quiet room, a busy counter, or a line you want to see again.

  • Sign to speech

    Sign to the camera and SignMog speaks for you. Your hands are read on your device, and camera frames never leave it.

  • Learn

    Short lessons and quizzes, from the alphabet and greetings up. Practice with the camera and see how your handshape compares.

  • The dictionary

    Look up any sign. Slow it down, orbit around the signer, and watch the hands from the side or from above.

  • Chrome extension

    Open the side panel on YouTube, Meet, Zoom or Teams with captions on, and the twins sign each line as it appears.

Meet the twins

Sig and Sia.

Two signers, the same hands, the same signs. Pick the one you like to watch.

Sig

The default signer · male voice for Sign to Speech

I sign what you hear.

Sia

Sig's twin sister · female voice for Sign to Speech

Every word, in your hands.

Switch twins any time in Settings. The signs stay the same. The voice that speaks your signing changes with the twin.

Chrome extension

Captions in. Signs out.

Turn on captions in YouTube, Google Meet, Zoom or Teams. Open the SignMog side panel, and Sig or Sia signs each line as it appears, right beside the page. No captions? The panel can listen through your microphone too.

  • Works where captions are. YouTube, Google Meet, Zoom and Teams on the web are picked up by themselves. On any other page with captions, click Read this page.
  • Captions only, kept nowhere. It reads caption text, hands it to the side panel on your device, and saves nothing.
  • Free, no account. The same twins and the same dictionary as the app, in Chrome or Edge.

The Chrome Web Store listing is in review.

Until it goes live, you can add the extension by hand. It takes about a minute.

  1. Email hello@signmog.com and we send you the extension folder.
  2. In Chrome, open chrome://extensions (in Edge, edge://extensions).
  3. Turn on Developer mode, at the top right.
  4. Click Load unpacked and choose the SignMog folder.
  5. Pin SignMog, open a page with captions on, and click the hand.

When the store listing is live, this button goes straight to it.

A browser window with a captioned video on the left and the SignMog side panel on the right, where Sig signs the caption "Welcome back, everyone."

Plans

Being understood is free.

The interpreter, the camera, the dictionary and the extension cost nothing, for everyone. Learners pay for the lessons, the tutor and kids mode, and that keeps the interpreter free.

Free

For everyone, forever.

  • Live speech to sign, type to sign, page captions
  • Sign to speech through the camera
  • The full dictionary, with slow motion and orbit
  • Learn: greetings and the alphabet, 3 camera checks a day
  • The Chrome extension side panel
  • Sig and Sia, both
  • No account needed
Start signing

Coming soon

Plus

$9.99 a month, or $59.99 a year. 7-day free trial.

  • Every lesson, with new units every month
  • Unlimited camera grading of your signing
  • Ask the tutor: any sentence, in proper ASL order, then sign it back
  • Kids mode: storybooks and songs, signed slowly
  • A weekly review deck of the signs you missed
Get notified

Coming soon

Family

$14.99 a month, or $89.99 a year, for up to 5 profiles.

  • Everything in Plus, for the whole household or classroom
  • A child profile with no reading needed
  • A shared family report
Get notified

Free needs no account. Plus and Family will, and these prices are the plan; they will be confirmed on this page before either opens.

A note for Deaf and hard-of-hearing readers

An aid, not an interpreter.

We built SignMog for the everyday gaps: a quick chat, a video with no interpreter, a sign you want to learn. It does not replace a qualified interpreter, and we will not pretend it does.

  • Not certified. Sig and Sia are 3D signers driven by software, not certified interpreters. For a doctor, a lawyer, a court, school, work or an emergency, ask for a qualified interpreter. In many places you have a right to one.
  • Every sign has a Report button. If a sign is wrong, unclear, or not how your community signs it, tap Report and say what is off. Your note is saved and copied, ready to paste into an email to us.
  • Verified means checked by a fluent signer. Signs are reviewed by fluent signers before they are marked verified. SignMog is new, and most signs are still waiting for that review. Until a sign is verified, treat it as a draft.
  • Unknown words are spelled, not guessed. When a word has no sign in the dictionary yet, the twins fingerspell it.
  • Grammar is still learning. Long or complex sentences can come out closer to English word order than to natural ASL.
  • ASL only, for now. BSL, LSF, Auslan and other sign languages are languages of their own, and SignMog does not sign them yet.

Are you a fluent signer, a Deaf teacher or an interpreter? We would be grateful for your eyes on the signs. Write to hello@signmog.com.

FAQ

Straight answers.

Anything else: hello@signmog.com

Is SignMog free?

Yes. Everything that runs on your device is free: live speech to sign, type to sign, sign to speech through the camera, the dictionary, Learn and the Chrome extension. There is no account to make. Pro will add cloud grammar and meeting captions later, and its price will be on this page before it opens.

Can SignMog replace an interpreter?

No. SignMog is an aid, not a certified interpreter. It helps in everyday moments, like a quick chat or a video with no interpreter. For medical, legal, school, work or emergency situations, ask for a qualified interpreter. In many places you have a right to one.

Which sign language do Sig and Sia use?

American Sign Language (ASL). Your words become ASL gloss, and Sig or Sia signs each sign with its handshape, place, movement and face. Words without a sign yet are fingerspelled. Other sign languages, like BSL or LSF, are different languages and are not supported yet.

Does SignMog record my voice?

No. SignMog never receives or saves your audio. Your browser's own speech recognition turns your speech into text, and the twins sign that text. Some browsers do this on your device and some send the audio to the browser maker's servers, under that browser's privacy policy. The microphone is on only after you start it, and your browser shows when it is in use.

Does the camera send my video anywhere?

No. Hand tracking for Sign to Speech and camera lessons runs on your phone or computer. Camera frames never leave your device and are never saved. The first time you open the camera, SignMog downloads the hand-tracking model, and after that it works from your device.

Which browsers and devices does it work on?

SignMog runs in the browser on phones, tablets and computers, with nothing to install. Typing, the dictionary, Learn and the camera work in current Chrome, Edge, Safari and Firefox. Speech to sign uses the browser's speech recognition, which works best in Chrome and Edge; Safari's varies by device, and Firefox has none yet. The extension needs Chrome or Edge on a computer.

What does the Chrome extension read?

Captions, and nothing else. On YouTube, Google Meet, Zoom and Teams on the web it picks up the captions shown on the page. On any other page it reads only after you click Read this page in the panel. Caption lines go only to the SignMog side panel on your device, are not saved, and are not sent to us unless you turn on Cloud grammar. It never reads your history, your passwords or what you type.

How do I report a wrong sign?

Tap Report on any sign and say what looks off: the handshape, the place, the movement or the face. SignMog saves your note on your device and copies it, so you can paste it into an email to hello@signmog.com. We read every report, and fluent signers review the signs they point to.

Do I need an account?

No. The free app works without an account or a sign-in. Your settings and your Learn progress stay in your browser on this device. Pro will need an account when it opens.