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About this tool
Learn American Sign Language (ASL) alphabet with interactive cards, quizzes, and progress tracking
The Sign Language Alphabet Trainer teaches the 26 handshapes of the American Sign Language manual alphabet through five modes — flashcards, letter-to-sign quiz, sign recognition, an A-to-Z practice run and a word speller that fingerspells whatever you type. Every answer is scored per letter, and a letter is marked mastered only once you have answered it at least 5 times with 80% or better accuracy. Progress, streaks and per-letter scores are kept in your browser, so you can build up the alphabet over several short sessions.
Open Sign Language Alphabet Trainer on AltFTool — it loads instantly in your browser.
Pick a mode from Learn, Quiz, Recognition, Practice or Word Speller — Learn opens the 26 "Alphabet Cards" with a Show Descriptions toggle and a Realistic Hand Signs / Outline Diagrams style switch.
Use Quiz to name the letter for a sign and Recognition to pick the sign for a letter, or type into "Enter Word or Phrase" in Word Speller and set the Speed slider anywhere from 0.4s to 2.0s per letter.
Watch the header counters: a letter only counts toward "26 Mastered" after 5 or more attempts at 80% accuracy, and your Streak and per-letter scores are kept in your browser.
A letter only turns green after 5 or more attempts at 80% accuracy, so the progress bar reflects recall rather than exposure.
Quiz mode shows a sign and asks for the letter; recognition mode shows a letter and asks for the sign — the two skills are trained separately.
The word speller animates any typed word letter by letter at 0.4 to 2.0 seconds per sign, with the sequence laid out so you can pause on the letter that trips you.
Twenty-six — one handshape for each letter A through Z. Two of them, J and Z, are traced in the air rather than held still, which is why they are usually the last two people get comfortable with.
After at least 5 scored attempts with 80% or higher accuracy on that specific letter. Letters with fewer than 3 attempts are shown as new, and anything in between is marked learning, so the 26-letter counter only moves on demonstrated recall.
Yes. Per-letter scores, your current streak and your best streak are written to your browser's local storage, so reopening the page picks up where you left off. Clearing site data or using a different browser or device starts you at zero.
No — fingerspelling is one small part of ASL, used mainly for names, places and words with no established sign. ASL is a full language with its own grammar, facial grammar and spatial reference, so pair this with a class or a Deaf instructor if you want to converse.