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State of JavaScript 2025

Usage

How you use JavaScript

JavaScript/TypeScript Balance

The proportion of developers who write the entirety of their code in TypeScript keeps increasing, and may soon represent a majority of respondents.

How do you divide your time between writing JavaScript and TypeScript code?
0%
20%
40%
60%
80%
100%
1
0% TS
661
2
|
438
3
|
381
4
|
209
5
50/50
578
6
|
255
7
|
1,073
8
|
2,972
9
100% TS
4,367
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,934
84%
77%
88%
10

Compiled Code Balance

A natural consequence of writing typed code (at least today) is depending on a build step, which is the case for the vast majority of us.

What proportion of the JavaScript code you write for the browser goes through a build step?
0%
20%
40%
60%
80%
100%
1
0% Compiled
260
2
|
184
3
|
183
4
|
114
5
50%
540
6
|
229
7
|
897
8
|
2,349
9
100% Compiled
5,861
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,617
82%
86%
100%
10

Build Step Advantages

If we did want to envision a build-less future, the first step would no doubt be native type support in JavaScript.

What do you feel are the main advantages resulting from using a build step?
Multiple
0%
20%
40%
60%
80%
100%
01
Static typing
7,891
02
Better development experience
5,460
03
Code optimization
4,963
04
Template/component transpilation
4,232
05
Bundling
2,921
06
Linting
2,097
07
Browser compatibility
1,503
08
Environment management
642
09
Asset processing
631
10
No advantages
11
All of the above
12
Other Answers
53
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,525
81%
10

AI Code Generation

While respondents do not yet produce a majority of their code with AI, the balance is quickly shifting, with code being the result of AI output increasing from 20% to 29% year-over-year.

What proportion of the code you produce is AI-generated?
0%
20%
40%
60%
80%
100%
1
0% AI
1,126
2
|
3,224
3
|
2,783
4
|
1,090
5
50%
1,153
6
|
557
7
|
627
8
|
187
9
100% AI
23
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,770
83%
29%
25%
10
We asked members of the JavaScript community to share their “pick of the year”

My 2025 Pick: Talk: Next.js at the speed of Bun

My pick is Lydia Hallie's talk at Next.js Conf about Bun. They're working on super exciting things, and shes the best at explaining advanced topics :)
We asked members of the JavaScript community to share their “pick of the year”

Aurora Scharff

Web Developer

Use Case

Despite the ever-growing number of use cases for JavaScript, front-end develeopment remains the most common reason to use the language for now.

What do you use JavaScript for?
Multiple
0%
20%
40%
60%
80%
100%
01
Frontend Development
10,777
02
Backend Development
7,261
03
Mobile Apps
2,696
04
Desktop Apps
1,869
05
Data Visualization
1,795
06
Graphics & Animation
1,282
07
Data Analysis
938
08
Game Development
682
09
Embedded Apps
+1
253
10
Machine Learning
-1
242
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,926
84%
10

Sector industrial

Given the survey's focus on upcoming trends and early-stage features, it makes sense that its largest audience block would be developers building tools and products for other programmers.

¿En qué sector(es) industriales trabajas?
Multiple
0%
20%
40%
60%
80%
100%
01
Programación y herramientas técnicas
4,210
02
Servicios de consultoría
3,243
03
Comercio electrónico y venta minorista
2,403
04
Finanzas
1,691
05
Educación
+1
1,464
06
Herramientas de marketing/ventas/análisis
-1
1,419
07
Entretenimiento
1,360
08
Cuidado de la salud
992
09
Noticias, medios y blogs
854
10
Gobierno
757
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
9,735
75%
20
10

Application Patterns

Modern JavaScript frameworks may now support a whole range of various rendering modes, but it turns out the simplest ones remain the most popular to this day.

Which of the following architecture and rendering patterns have you used in the last year?
Multiple
0%
20%
40%
60%
80%
100%
01
Single Page Application (SPA)
9,467
02
Server-Side Rendering (SSR)
6,308
03
Static Site Generation (SSG)
4,865
04
Multi-Page Application (MPA)
4,228
05
Partial Hydration
2,302
06
Islands Architecture
1,646
07
Progressive Enhancement
1,335
08
Streaming SSR
+1
1,061
09
Partial Prerendering
+1
922
10
Incremental Static Generation
-2
917
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,623
82%
10

Puntos dolorosos de JavaScript

We now have pretty much all the tools we need; the challenge is to know how to use them right.

What aspects of JavaScript do you struggle with the most?
Multiple
0%
20%
40%
60%
80%
100%
01
Arquitectura de código
3,809
02
Manejo de estado
3,490
03
Manejando dependencias
3,203
04
Manejo de fechas
+3
2,681
05
Performance
2,578
06
Build Tools
-2
2,303
07
Depurando
-1
2,177
08
Typing
1,916
09
Encontrando paquetes
+1
1,303
10
Código asíncrono
-1
1,110
0%
20%
40%
60%
80%
100%
% de respuestas respondidas
10,171
78%
10

¿Cómo de satisfecho estás con el estado general de las tecnologías web?

Happiness is once again stable.

How happy are you with the general state of web technologies?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
1
2
3
4
5
Average
10,724
82%
3.8
4
10

¿Cómo de satisfecho estás con el estado general de JavaScript?

Happiness levels remain constant once again.

How happy are you with the general state of JavaScript?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
1
2
3
4
5
Average
10,820
83%
3.8
4
10

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