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For the love of
Open Source

It's not easy for open source maintainers to welcome new contributors while maintaining project integrity. Use Sema to codify project standards, and help your contributors show off their hard work.

Writing code reviews is harder than ever.
Use Sema to codify and seamlessly share your engineering knowledge

Join Sema
Watch a demo
Sema Code Reviews for open source

Bring contributors together
by establishing and sharing coding standards,
easier than ever before

Bring contributors together
by establishing and sharing coding standards, easier than ever before

Open source powers code across the globe – and the contributing coders and reviewers who make it all possible could use better tools to help. Whether the open source code is a small passion project among friends or an application powering the world’s top companies and organizations, with Sema, you get code reviews on your open source DeLorean to 88 miles an hour.

Open source powers code across the globe – and the contributing coders and reviewers who make it all possible could use better tools to help. Whether the open source code is a small passion project among friends or an application powering the world’s top companies and organizations, with Sema, you get code reviews on your open source DeLorean to 88 miles an hour.

Get going in seconds

Free for open source teams, forever. Just download the Chrome extension, open GitHub, and you’re good to go.

Panel to insert emojis to give feedback in Sema

Banish misunderstanding

Distributed teams need great feedback. Use Summaries and Tags to give feedback that’s instantly understandable, even in asynchronous moments.

Teach standards quickly

Put best practices at your fingertips. Upload and insert relevant Snippets from the project’s documentation, or watch in awe as your contributors build that guide - automagically whenever they leave a comment.

Personal insights shown in Sema's Chrome extension

Always-on coaching

Give your contributors the power of personal reflection. Provide a rich history of every review given, including comments, summaries, and tags so everyone can learn past the teachable moment.

Team dashboard in Sema's Chrome extension

Better together

Bring your distributed contributors together into a team, all on Sema, so everyone can learn together. Invite as many contributing reviewers and coders as you like.

Personal profile in Sema's Chrome extension

Take pride

Enable engineers to showcase their achievements while contributing to the community – with a portfolio of their highest quality code and moments of growth.

Get going in seconds

Free for open source teams, forever. Just download the Chrome extension, open GitHub, and you’re good to go.

Panel to insert emojis to give feedback in Sema

Banish misunderstanding

Distributed teams need great feedback. Use Summaries and Tags to give feedback that’s instantly understandable, even in asynchronous moments.

Teach standards quickly

Put best practices at your fingertips. Upload and insert relevant Snippets from the project’s documentation, or watch in awe as your contributors build that guide - automagically whenever they leave a comment.

Personal insights shown in Sema's Chrome extension

Always-on learning

Give your contributors the power of personal reflection. Provide a rich history of every review given, including comments, summaries, and tags so everyone can learn past the teachable moment.

Better together

Bring your distributed contributors together into a team, all on Sema, so everyone can learn together. Invite as many contributing reviewers and coders as you like.

Team dashboard in Sema's Chrome extension
Personal profile in Sema's Chrome extension

Take pride

Enable engineers to showcase their achievements while contributing to the community – with a portfolio of their highest quality code and moments of growth.

Built by engineers, for engineers

Built by engineers, for engineers

"It’s amazing to have a Portfolio, to show off what I’ve built. I wish I had this five years ago."

Fady

"First time contributors like me can understand what is being looked for and how they should code. That way I won’t get slammed on my review."

Brandon

"The knowledge based on our open source project is so hard to maintain. This helps a lot."

Deepak

Join Sema

We can’t wait to show what we’ve been working on. We're carefully crafting the perfect tool.

Join Sema
Watch a demo