Why Developers Love Claude Code: 91% Satisfaction and NPS 54

Why Developers Love Claude Code: 91% Satisfaction and NPS 54 (2026 Data)

Claude Code holds a 91% customer satisfaction score and NPS of 54 — the highest marks in the AI coding tool category as of January 2026 — while growing from 3% to 18% at-work adoption in just eight months. The satisfaction gap over GitHub Copilot (4.8/5 vs. 4.1/5) is wide enough to matter, and 46% of senior engineers now call it their most-loved tool. Here’s what the data shows and why it happened. ...

June 3, 2026 · 13 min · baeseokjae
JetBrains AI Tools Survey 2026: Key Findings for Dev Teams

JetBrains AI Tools Survey 2026: Key Findings for Dev Teams

JetBrains’ April 2026 AI Pulse survey of over 10,000 professional developers is the most rigorous snapshot of AI tool adoption available: 90% of developers now use at least one AI tool at work, Claude Code jumped from 3% to 18% work usage in under a year, and a longitudinal behavior study reveals developers are editing far more code than they realize. JetBrains April 2026 Survey: Methodology and Why It Matters The JetBrains AI Pulse survey is one of the most credible data sources on AI tool adoption in software development. Conducted across 10,000+ professional developers in January 2026, it combines self-reported survey responses with the JetBrains HAX Study — a longitudinal analysis of two years of IDE log data from 800 developers (400 AI users, 400 non-users). This dual methodology separates JetBrains’ research from typical vendor surveys: it captures actual behavior, not just what developers believe they’re doing. JetBrains runs the survey as part of their AI Pulse series, with data points collected in April–June 2025, September 2025, and January 2026 — giving a true time-series view of how the market evolved. The company also publishes quarterly awareness and usage metrics across all major AI coding tools, making it the closest thing to an independent audit of market share in this space. 88 Fortune Global Top 100 companies use JetBrains tools, so the respondent pool skews toward professional developers in real enterprise contexts, not hobbyists. ...

May 31, 2026 · 11 min · baeseokjae
AI Coding Tool Adoption Statistics 2026: JetBrains Survey of 10K Developers

AI Coding Tool Adoption Statistics 2026: JetBrains Survey of 10K Developers

90% of professional developers now regularly use at least one AI tool at work, and 74% have adopted specialized AI coding tools — not just general chatbots. Those are the headline numbers from JetBrains’ January 2026 AI Pulse survey of over 10,000 developers across eight languages and multiple continents, the most credible real-work adoption data available today. The JetBrains AI Pulse Survey: Why This Data Matters The JetBrains AI Pulse survey, conducted in January 2026 with over 10,000 professional developers across 8 languages and globally representative sampling, is the benchmark dataset for understanding AI coding tool adoption. Unlike vendor-reported user counts or opt-in web surveys, JetBrains used raking weighting to ensure the sample matched the global developer population — making it the most methodologically rigorous independent survey on this topic. JetBrains tracked the same metrics across multiple survey waves (April 2025, June 2025, January 2026), enabling rare longitudinal trend analysis. The survey separated “awareness” from “work adoption,” a distinction that eliminates the noise of casual experimentation and surfaces tools developers actually trust enough to use professionally. This data reveals which tools have earned real slots in developer workflows versus which are popular in demos but abandoned in production. For any developer or engineering leader trying to make a budget or tooling decision in 2026, the JetBrains AI Pulse is the most reliable starting point — not vendor marketing, not Twitter discourse, and not smaller single-country surveys. ...

May 29, 2026 · 15 min · baeseokjae
SonarSource State of Code 2026: Developer Survey on AI Quality and Security

SonarSource State of Code 2026: Developer Survey on AI Quality and Security

The SonarSource State of Code 2026 survey found that AI now accounts for 42% of all committed code—while 96% of developers don’t fully trust it and only 48% consistently verify it before committing. That gap between adoption and verification is the central crisis the report documents. What Is the 2026 State of Code Developer Survey? The SonarSource State of Code Developer Survey 2026 is an independent research study based on responses from more than 1,100 professional developers worldwide, conducted in early 2026. SonarSource — the company behind SonarQube, the enterprise static analysis tool used by millions of developers — commissioned the survey to benchmark how teams are integrating AI coding tools into production workflows. Unlike vendor-sponsored AI hype reports, this survey deliberately asked developers about the friction, risks, and gaps they experience daily. The central theme that emerged is what SonarSource calls the “verification gap”: AI code generation has scaled dramatically, but the human and automated processes meant to catch AI-introduced errors have not kept pace. The report’s findings span four core dimensions — adoption rates, quality and security concerns, governance practices, and developer skill evolution — making it the most comprehensive picture available of where professional software development stands in 2026. ...

May 26, 2026 · 13 min · baeseokjae
JetBrains AI Pulse Survey 2026: 85% of Developers Now Use AI

JetBrains AI Pulse Survey 2026: 85% of Developers Now Use AI

JetBrains surveyed over 10,000 professional developers across 8 languages in January 2026 and found that 85-90% now use AI tools regularly — but only 29% trust the output to be accurate. That trust gap, more than the adoption numbers, defines the state of AI-assisted development in 2026. JetBrains AI Pulse Survey 2026: What It Is and Why It Matters The JetBrains AI Pulse Survey is a recurring research program that tracks how professional developers actually use AI tools at work — not what they intend to use, not what they experiment with at home, but what ends up in their daily workflows. The January 2026 wave covered 10,000+ professional developers across 8 languages (English, German, French, Spanish, Portuguese, Russian, Chinese, and Japanese), making it one of the largest and most globally representative developer AI surveys conducted to date. Unlike analyst surveys that ask “are you excited about AI?”, JetBrains asks about specific tools, specific tasks, and specific outcomes — yielding data that teams can actually act on when building AI strategy. The survey runs in waves (previous waves covered April-June 2025 and September 2025), so researchers can track trends over time rather than reporting a single snapshot. This longitudinal design is what makes it possible to spot things like Claude Code’s 6x adoption surge or GitHub Copilot’s growth stall — patterns invisible in single-wave surveys. ...

May 24, 2026 · 14 min · baeseokjae
AI Coding Tools Market Share 2026: Real Adoption Data from 12,000+ Developers

AI Coding Tools Market Share 2026: Real Adoption Data from 12,000+ Developers

AI coding tools have gone from novelty to necessity in 18 months. In 2026, 84% of developers use or plan to use AI coding tools — up from 76% in 2024 — with 51% using them every single workday. But adoption doesn’t mean satisfaction: trust in AI-generated output has dropped to 29%, down from 40% just two years ago. Here’s the full picture from surveys covering 12,000+ developers. The 2026 AI Coding Market at a Glance: Key Numbers You Need to Know The AI coding assistant market reached $12.8 billion in 2026, growing at a 27% compound annual growth rate toward a projected $30.1 billion by 2032. That 65% year-over-year growth in 2025–26 reflects a market still in its expansion phase, not maturation. For context: in 2023, most of these tools didn’t exist. GitHub Copilot launched in 2022, Cursor went mainstream in 2024, and Claude Code only hit general availability in early 2025. Despite this youth, the category already has three products above $2 billion in annual revenue run-rate and is reshaping how software teams hire, scope projects, and measure output. JetBrains surveyed 10,000+ professional developers in January 2026 and found that 90% regularly use at least one AI tool at work — a figure that would have seemed implausible 24 months earlier. The fastest adoption curve in developer tooling history is still accelerating. ...

May 20, 2026 · 12 min · baeseokjae
JetBrains AI Coding Tools Survey 2026: What Developers Actually Use at Work

JetBrains AI Coding Tools Survey 2026: What Developers Actually Use at Work

JetBrains published their AI Pulse survey in January 2026, covering 10,000+ developers worldwide on which AI coding tools they actually use at work — not just awareness, but regular daily usage. The headline finding: 90% of developers use AI tools broadly, but adoption of specialized coding assistants is more concentrated than awareness numbers suggest. Survey Methodology: JetBrains AI Pulse January 2026 (10,000+ Developers Worldwide) The JetBrains AI Pulse January 2026 survey polled over 10,000 professional developers across company sizes, industries, and geographies, making it the largest independent snapshot of AI coding tool adoption published in 2026. The survey distinguishes between awareness (have you heard of this tool?), personal use (do you use it for personal projects?), and work adoption (do you regularly use it at your job?) — a three-way distinction that reveals significant gaps between mindshare and real deployment. JetBrains ran parallel surveys in April–June 2025 and September 2025, enabling longitudinal tracking of adoption curves that reveals which tools are accelerating and which are plateauing. The methodology weights responses by developer seniority and company size to prevent startup-heavy or enterprise-heavy skew, giving a representative cross-section of the professional developer population. Key caveats: the sample over-represents JetBrains IDE users (IntelliJ, PyCharm, WebStorm) relative to the broader developer market, which may slightly underweight VS Code-heavy ecosystems where Cursor and GitHub Copilot have stronger native integrations. Despite this, the directional findings are corroborated by multiple independent market research sources and represent the most rigorous published data set on AI coding tool adoption as of early 2026. ...

May 20, 2026 · 13 min · baeseokjae
What Developers Actually Use: JetBrains AI Tool Survey 2026

What Developers Actually Use: JetBrains AI Tool Survey 2026

JetBrains surveys tens of thousands of developers every year, and the 2026 data lands with a clear verdict: AI coding tools are no longer an experiment. Eighty-five percent of developers now use at least one AI tool regularly in their development work — up from 62% in the prior survey cycle — and 46% of all code in Copilot-enabled projects is AI-suggested. The tools have moved from novelty to infrastructure, and the real question has shifted from “should I use AI?” to “which combination of tools is worth paying for?” ...

May 7, 2026 · 16 min · baeseokjae