Try Karl free for 30 days.

Single developer. Full Solo features. No credit card. The licence arrives in your inbox within a minute, signed with the same key we use for paid licences.

One trial per email address. We send the signed licence file (karl-license.json) as an attachment — save it to your Karl data directory and restart. After 30 days the licence stops working and Karl falls back to demo mode. No automatic billing, no credit-card form, ever.