Audit how much a screen asks of a person: controls, reading level, timeouts, CAPTCHAs and form length

Cognitive load checkFreeFor designers, developers and product teams

25/day

free runs a day, no sign-in.

Before: what you give it

The example input, as typed in. You paste text, CSS, markup or notes.

<html lang="en"><body><main><h1>Checkout</h1><p>Your session will expire in 10 minutes.</p><form><input name="first_name" placeholder="First name" maxlength="20" pattern="[A-Za-z]+" required><input name="last_name" placeholder="Last name" required><input name="email" type="email" placeholder="Email"><input name="email2" placeholder="Confirm email"><input type="password" name="pw" autocomplete="off" placeholder="Password"><select name="title" required><option>Mr</option><option>Mrs</option></select><div class="captcha">Select all images with traffic lights</div><button>Pay</button><button>Save<
...

After: what comes back

The first lines of a real run on that input. Nothing here is edited by hand.

COGNITIVE LOAD CHECK
Words 20; sentences 2; average sentence 10 words; Flesch n/a (needs 30+ words)
Controls: 1 link, 3 buttons, 6 fields; 1 heading
Findings: 3 high, 3 medium, 3 low, 0 info

[HIGH] WCAG 2.2.1 Timing Adjustable (A): Page refreshes or redirects after 600s
  A timed redirect cannot be turned off, adjusted or extended.
  Seen in: 600
  Fix: Remove it, or let the person turn it off or extend it before it fires.

[HIGH] WCAG 3.3.8 Accessible Authentication, Minimum (AA): Password field blocks autofill or paste
  Authentication that depends on remembering and retyping is a cognitive function test unless password managers and paste work.
  Seen in: <input>
  Fix: Allow paste, set autocomplete to current-password or new-password, and do not block managers.
... full output on the tool page

What you get

Counts of controls, words and fields, plus WCAG 2.2 cognitive findings rated high to info

What it cannot do

Static audit of pasted HTML or text; it cannot see script behaviour, and the reading-ease score is English only.

Who it is for

Designers
Developers
Product teams

Free and Pro

Free	25 runs a day per IP address, up to 100,000 characters a run.
Pro	No daily limit, 300 requests a minute, up to 200,000 characters a run.

What each plan includes

Use it from your assistant

The tool is called cognitive_load_check. Connect the server once, then ask for it by name or just describe the job. Install steps for each app.

claude mcp add --transport http designers https://designers.allthepossibles.com/mcp

curl -X POST https://designers.allthepossibles.com/api/cognitive-load -H 'content-type: application/json' -d '{"content":"<html lang=\"en\"><body><main><h1>Checkout</h1><p>Your session will expire in 10 minutes.</p><form><input name=\"first_name\" placeholder=\"First name\" maxlength=\"20\" pattern=\"[A-Za-z]+\" required><input name=\"last_name\" placeholder=\"Last name\" required><input name=\"email\" type=\"email\" placeholder=\"Email\"><input name=\"email2\" placeholder=\"Confirm email\"><input type=\"password\" name=\"pw\" autocomplete=\"off\" placeholder=\"Password\"><select name=\"title\" required><option>Mr</option><option>Mrs</option></select><div class=\"captcha\">Select all images with traffic lights</div><button>Pay</button><button>Save</button><button>Cancel</button><a href=\"/help\">Help</a></form></main><meta http-equiv=\"refresh\" content=\"600\"></body></html>"}'

Try it here

The form starts with the same example input, so you can run it first and then swap in your own.

Paste HTML or copy