How do I learn ASL online?

You can learn American Sign Language online with Signpost using just a webcam. Our machine learning model watches your hand signs in real time and gives instant feedback on your form. Start with the ASL alphabet and fingerspelling, then work through a structured curriculum to full conversational ASL at your own pace.

Is Signpost free to use?

Yes. Signpost offers a free demo that requires no sign-up. Just open the app, turn on your webcam, and start signing. The machine learning model gives you real-time feedback immediately.

What do I need to start learning ASL with Signpost?

All you need is a computer or phone with a webcam and a modern web browser. No downloads, no installations, and no special equipment.

How is Signpost different from other ASL apps?

Most ASL apps only show you videos to copy. Signpost uses computer vision to watch your actual hand signs and correct your form in real time, so it works like a personal ASL tutor that is available 24/7 with under 100 milliseconds of feedback delay.

Can complete beginners use Signpost to learn sign language?

Yes. Signpost is built for beginners with zero ASL experience. The curriculum starts with the ASL alphabet and fingerspelling, then moves to common signs and conversational ASL at your own pace.

How long does it take to learn ASL?

Most learners can pick up the ASL alphabet and basic fingerspelling in a few hours. Becoming conversational in American Sign Language usually takes 6 to 12 months of regular practice. Because Signpost gives feedback on every sign, learners typically progress faster than they would using video-only courses.

Is sign language hard to learn?

ASL is not harder to learn than a spoken second language, but it uses your hands, face, and body instead of your voice, so it feels new at first. The biggest obstacle for most beginners is not knowing whether they are signing correctly. Signpost solves that by giving instant feedback on every gesture.

What is the best free app to learn ASL?

Signpost is one of the only free ASL apps that uses machine learning to watch your hands and tell you if your signs are right. The free demo runs in your browser with no sign-up, so you can try it out and decide for yourself.

Can I learn ASL by myself at home?

Yes. Signpost is designed for self-teaching at home. The machine learning model plays the role of a tutor by watching your signs through your webcam and correcting your form so you do not build bad habits.

Does Signpost teach the ASL alphabet and fingerspelling?

Yes. The first lessons in Signpost cover the full ASL alphabet and fingerspelling drills. You can practice each letter and the machine learning model will tell you in real time whether your hand shape matches.

Is my webcam data private and secure?

Yes. Hand tracking runs entirely in your browser, so your webcam feed is never sent to our servers, recorded, or stored. When you finish a lesson we save only the result: which signs you practiced and how accurate each one was. Video, images, and tracking data never leave your device.

Legal

Subprocessors

Last updated October 5, 2026

These are the companies that process personal data on our behalf to run Signpost. Each one only receives the data it needs to provide its service to us, and is bound by data processing terms that limit what it can do with it.

Signpost’s application servers are run by our own team, so there’s no separate hosting company on this list.

Provider	What they do for us	Data they handle	Location
Cloudflare	DNS, content delivery, and security for every Signpost site. All traffic passes through Cloudflare.	IP addresses and request data, while in transit	Global network, US company
Neon	Hosts our main database.	Account, progress, class, billing, and LMS data	United States (AWS, Oregon)
Clerk	Sign-in and account management.	Name, email address, profile picture, and sign-in activity	United States
Stripe	Payments and subscriptions.	Name, email address, payment details, and billing address	United States
PostHog	Product analytics for the website and app.	Usage events, device and browser details, approximate location, and account ID	United States
Google (Google Analytics)	Website analytics.	Pages viewed, device and browser details, and IP address	United States and other countries

Services your browser connects to

These services aren’t subprocessors, because we don’t send them your account information. Your browser loads content from them directly, so they receive your IP address and basic browser details when it does.

Service	Why
YouTube	Plays embedded sign videos, in privacy-enhanced mode.
Lifeprint	Serves sign images and reference pages.
Google Cloud Storage	Serves the MediaPipe hand and face tracking models.
jsDelivr	Serves the MediaPipe tracking library.
Better Stack	Hosts our status page at status.signpostasl.com.

If you use Signpost through school, information is also exchanged with your school’s learning management system. That system is run by or for your school, not by us. Our Privacy Policy explains what’s shared.

Changes to this list

We update this page when we add or replace a subprocessor. The date at the top shows the last change. If you have questions about any provider, get in touch.

Matrix Studios Software

1968 S. Coast Hwy #3479, Laguna Beach, CA 92651
Email: [email protected]

Services your browser connects to

Changes to this list

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