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Sign ASL
Northampton, United Kingdom
What it is
Sign ASL is a free service for searching and comparing American Sign Language words and phrases. Its library lists more than 40,000 video signs contributed by over 150 signers. Users can search for signs, compare variations, and view videos on the web or in Android and iOS apps. Multiple signs for a word may reflect distinct meanings or regional variations. The iOS app includes recent and popular signs, looping playback, alternative-sign navigation, favorites with offline viewing, dark mode, and offline startup improvements. The mobile apps require no account, registration, login, or personal profile. Search terms are sent to Sign ASL servers, where requests are logged anonymously for service improvement. The mobile apps use Google AdMob ads and may process basic device information. Sign ASL says it does not sell personal user data or perform cross-app behavioral tracking. Dictionary and word-definition information comes from WordNet by Princeton University. The service is built for learners, teachers, and the Deaf community.
For and against
For
- Free access to more than 40,000 video signs
- Signs contributed by more than 150 signers
- Available on web, Android, and iOS
- iOS favorites support offline viewing
Against
- Search terms are sent to Sign ASL servers
- Mobile apps use AdMob ads
- iOS offline favorites are a listed app feature
The verdict
Sign ASL offers a broad video dictionary with sign comparisons across web and mobile apps. Users should note that searches are logged anonymously and that mobile apps display ads.
Who it suits
Sign ASL suits ASL learners, teachers, and members of the Deaf community looking up signs or comparing variations. Its mobile apps may be useful for users who want to view signs on Android or iOS, including offline favorites on iOS.
Plans and prices
Free
40,000+ video signs · 150+ contributing signers · unlimited access
Read 30 Sep 2026 · signasl.org
On the record
- Account requirement
- The iOS and Android apps require no account, registration, login, or personal profile.signasl.org · read 30 Sep 2026
- Advertising
- The mobile apps use Google AdMob ads, may process basic device information, and state that Sign ASL does not sell personal user data or perform cross-app behavioral tracking.signasl.org · read 30 Sep 2026
- Analytics
- The website uses Google Analytics and describes the visitor information as anonymous.signasl.org · read 30 Sep 2026
- Audience
- Sign ASL is built for learners, teachers, and the Deaf community.signasl.org · read 30 Sep 2026
- Contributors
- The video signs are contributed by more than 150 signers.signasl.org · read 30 Sep 2026
- Core features
- The service provides quick search, sign variation comparison, and mobile learning access.signasl.org · read 30 Sep 2026
- Data handling
- App search terms are sent to Sign ASL servers and search requests are logged anonymously for service improvement.signasl.org · read 30 Sep 2026
- Definitions
- Dictionary and word-definition information comes from WordNet by Princeton University.signasl.org · read 30 Sep 2026
- Infrastructure
- The service is powered by Cloudflare and AWS Lambda, Lightsail, API Gateway, S3, and RDS.daniel-mitchell.com · read 30 Sep 2026
- iOS features
- The iOS app supports recent and popular signs, looping playback, alternative-sign navigation, favorites with offline viewing, dark mode, and improved offline startup.daniel-mitchell.com · read 30 Sep 2026
- Mobile apps
- Sign ASL is available on Android and iOS for searching, comparing, and viewing the site's video signs, with free downloads.signasl.org · read 30 Sep 2026
- Purpose
- Sign ASL lets users search and compare thousands of American Sign Language words and phrases.signasl.org · read 30 Sep 2026
- Sign variation
- Multiple signs for one word can reflect different meanings or regional variations.signasl.org · read 30 Sep 2026
- Video library
- The site lists more than 40,000 video signs.signasl.org · read 30 Sep 2026
- Video sources
- Videos come from sources including StartASL, SMARTSign Dictionary, Elemental ASL Concepts, DeafTec, SignSchool, ASL Signbank, and Project CLIMB.signasl.org · read 30 Sep 2026
