Sacha Greif

Paris-born, Kyoto-based maker of the State of JS developer surveys and Sidebar

@SachaGreif Kyoto, Japan23K followersDeveloper Tools Creators & Writers Open Source Makers Design Tools

About Sacha Greif

Sacha Greif is a French designer, developer and entrepreneur who lives in Kyoto, Japan. Originally from Paris, he worked as a designer before deciding he wanted to build his own products and re-learning web programming; he moved to Japan in 2012.

He is best known for the State of JavaScript survey, which he started in response to talk of JavaScript fatigue and which grew into a family of annual developer surveys, including State of CSS, State of HTML and State of React. Running these surveys is now his main work. Earlier projects include Sidebar, a daily newsletter of the five best design links with more than 35,000 subscribers, the Discover Meteor book co-written with Tom Coleman, the Telescope news app and the open-source Vulcan.js framework.

Greif also co-organizes the Hacker News Kansai meetup and has written a free guide to community building.

Products by Sacha Greif

State of JavaScript

stateofjs.com

Annual survey of JavaScript developers on tools, frameworks and trends, part of a family of State of surveys.

State of CSS

stateofcss.com

Annual survey on CSS and front-end styling features.

Sidebar

sidebar.io

Daily newsletter with the five best design links, with more than 35,000 subscribers.

Vulcan.js

github.com

Open-source full-stack app framework built on React, GraphQL and Meteor.

Videos with Sacha Greif

State of JS Creator Sacha Greif on Developer Trends, AI’s Impact & Community Building

InterviewJavaScript Conferences by GitNation· 2025

Sacha Greif: How to Understand Developers through Surveys

InterviewTejas Kumar· 2025

JSConf JP 2025｜Sacha Greif｜The State of the Web

Talkjsconfjp· 2025

ReactiveConf 2019 - Sacha Greif: Vulcan.js: Building the “Rails for JavaScript”

TalkReactiveConf· 2019

dotJS 2018 - Sacha Greif - The State of JavaScript 2018

Talkdotconferences· 2018

Nordic.js 2017 • Sacha Greif - Keynote: The State Of JavaScript

TalkNordic.js· 2017

86 - The State of JavaScript & JavaScript Rising Stars feat. Sacha Greif

PodcastInfinite Red· 2017

Interviews & press

Sacha Greif: developer turned designer
freeCodeCamp · Interview · 2018
State of JavaScript with Sacha Greif
Software Engineering Daily · Podcast · 2017
Sacha Greif: How to Understand Developers through Surveys
ConTejas Code · Podcast
Entwickler werden nicht ueberfluessig
ComputerWoche · Profile

Timeline

2012 — Moved to Japan.

How Sacha builds

Collect real data instead of arguing from opinions.
Learn a technology by building a product with it.
Give back to the community through open source and guides.

Learn from Sacha Greif

[newsletter]

Sidebar

Five design links every day.

by Sacha Greif

Sacha Greif FAQ

Who runs the State of JS survey?

The State of JavaScript survey was created and is run by Sacha Greif, a French developer and designer based in Kyoto, Japan.

What else has Sacha Greif made?

He created the Sidebar design newsletter, co-wrote the Discover Meteor book and built the Vulcan.js framework, along with State of CSS, HTML and React surveys.