Better tools for better code.

Sema structured code reviews are easy, fun and viral.
Smart Reactions
Provide more actionable feedback with Sema’s auto-suggested smart reactions. As you type, Sema will calculate the right reaction for you. Click to override at any time.
Smart Reactions
Smart Tags
Quickly summarize your feedback with a carefully selected set of mutually exclusive tags. As you type, Sema will calculate the right tags for you or explore your own.
Smart Tags
Suggested Comments
Write great comments faster by quickly searching for and inserting pre-written comments from some of the best knowledge bases in the world. And add your own!
Suggested Comments
Code reviews are painful and inefficient -
wasting precious engineering time.
For reviewers, reviews are...
  • Time consuming to write.
  • Difficult to write diplomatically.
  • Lost to history.
For engineers, reviews are...
  • Insufficiently thorough.
  • Vary in meaning and actionability.
  • Don’t add up to career value over time.
Better reviews, and better engineering hygiene, result
in materially more successful companies and products.

Happier Developers

  • Who can better advance their skills and careers.
  • Who have their innate passion for code quality served.
  • Who are liberated to create new code, rather than review or clean up old code.

Happier Companies

  • More time on building new products and features. Less time on maintenance.
  • Higher developer retention.
  • Higher leverage out of developer time spent on code reviews.
  • Less bugs and more polished products.
  • Higher customer retention.
How we compare.
FeaturesSemaGitHubGerritUpsourceSonarqube
Encourages collaborative feedback
Code Feedback based on Engineer Wisdom
Works within existing review process
Structured Feedback
Standardized Feedback
Social Graph Development
Skills Discovery
Professional Development
Emerging Standard
 
Sema works with some of the world’s most
amazing companies.
We can’t wait to show what we’ve been working on.

We're carefully crafting the perfect tool. Join the waitlist below or ask someone you know for a Sema invite.

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Our team of developer obsessed builders and investors.