Evil Martians
We design and develop high performance developer tools that scale
- 65%
- of our clients raise Series A or B within 1–3 years
- 8
- startups grew from seed to unicorn with our help
- 25B+
- total downloads of our open source projects
Solve your problems, ship value
Hire us to take your product from PoC to MVP, iterate to PMF and scale efficiently through explosive growth.
All services
We build developer tools that developers love
We work with 40+ early-stage startups each year. Investors from Conviction, Blossom Capital, SignalFire, Heavybit, Uncork Capital recommend us to their portfolio companies.
- Bolt.newEvil Martians and StackBlitz: tech partners since 2021. Our engineers helped scale their WebContainers platform from pioneering browser IDE to bolt.new—the AI-powered tool that hit $20M+ ARR in just 2 months and disrupted the industry of vibe coding. We've built core infrastructure powering 3M+ monthly developers, from backend Rails to enterprise features and performance optimization. Together, we're transforming how developers build worldwide.
- $113M
- total funding
- Backed
- by GV
- TeleportEvil Martians has partnered with Teleport since 2020, engineering enterprise-ready features for their open-source infrastructure access platform. Our engineering and design teams work across the platform – from architecting the plugin ecosystem and deployment strategies to transforming their documentation into a powerful growth driver with Next.js. Combining deep Go expertise with product thinking, we continue as their technical partner driving R&D initiatives as well as building core features that support their growth..
- Backed
- by Kleiner Perkins, Y Combinator
- $170M
- total funding
- PlaybookSince 2021, Evil Martians has collaborated with Playbook to build a next-generation cloud platform for creatives that serves 700,000+ users worldwide. Our engineering teams have developed their core platform features – from ML-powered visual search and AI-assisted file management to Figma plugin and third-party integrations. Our relationship deepened when Playbook acquired CanFY, an AI assistant platform we incubated, bringing advanced image recognition and natural language processing capabilities to their creative ecosystem.
- $22M+
- total funding
Open Source is in our DNA
Millions of developers use our Open Source projects.
- 123
- projects with
- 178K+
- stars and climbing
- Martian Mono
Martian Mono
Martian Mono is a monospaced version of the Martian Grotesk for code style design. It's the first Evil Martians open source typeface on the market.- 2
- axes of variation
- 2.6K
- stars
- OKLCH Color Picker & Converter
OKLCH Color Picker & Converter
OKLCH Color Picker & Converter helps designers and web developers pick and convert colors in OKLCH and LCH color space, enhance a11y in their projects, and prepare for a future with a vibrant P3 color space.
- Gon
Gon
A Ruby gem that provides a straightforward way to pass Ruby variables to the Rails frontend code.
Read our legendary blog, meet us at events around the world
- Debug AI fast with this open source library to visualize agent traces
Debug AI fast with this open source library to visualize agent traces
![Cover for Debug AI fast with this open source library to visualize agent traces]()
- How to add fast, client-side search to Astro static sites
How to add fast, client-side search to Astro static sites
![Cover for How to add fast, client-side search to Astro static sites]()
- Our slice of the metaverse: 7 key AR features for iOS devs
Our slice of the metaverse: 7 key AR features for iOS devs
![Cover for Our slice of the metaverse: 7 key AR features for iOS devs]()
- Prioritization justice: lessons from making background jobs fair at scale
Prioritization justice: lessons from making background jobs fair at scale
EuRuKo 2025![Cover for Prioritization justice: lessons from making background jobs fair at scale]()
