TechSmith, the maker of Snagit, regularly blacklists leaked keys, meaning your software might stop working unexpectedly.
Many GitHub repositories offering "free keys" are bait for malware or phishing scripts. snagit key github 2021
Keep an eye on sites like Humble Bundle or Fanatical, where Snagit is occasionally offered at a fraction of the retail price. TechSmith, the maker of Snagit, regularly blacklists leaked
Easy sharing to Slack, Box, and Google Drive. Better Ways to Access Snagit the maker of Snagit
If a paid license isn't in your budget, these free and open-source tools provide many of the same features without the security risks of cracked keys: