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State of JavaScript 2025

Uso

Como usas JavaScript

Balance JavaScript/TypeScript

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

Como divides o tempo entre escribir código en JavaScript e TypeScript?
0%
20%
40%
60%
80%
100%
1
100% JS
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%
% dos enquisados
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%
% dos enquisados
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
Outros
53
0%
20%
40%
60%
80%
100%
% dos enquisados
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%
% dos enquisados
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

Uso de JavaScript

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

Para que usas JavaScript?
Multiple
0%
20%
40%
60%
80%
100%
01
Desenvolvemento frontend
10,777
02
Desenvolvemento backend
7,261
03
Aplicacións de móbil
2,696
04
Aplicacións de escritorio
1,869
05
Visualización de datos
1,795
06
Gráficos e animación
1,282
07
Análise de datos
938
08
Desenvolvemento de xogos
682
09
Aplicacións integradas
+1
253
10
Machine learning
-1
242
0%
20%
40%
60%
80%
100%
% dos enquisados
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 que sector(es) industriais traballas?
Multiple
0%
20%
40%
60%
80%
100%
01
Programación e ferramentas tecnolóxicas
4,210
02
Consultoría e servizos
3,243
03
Comercio electrónico e venda ao por menor
2,403
04
Finanzas
1,691
05
Educación
+1
1,464
06
Ferramentas de marketing/ventas/análise
-1
1,419
07
Entretemento
1,360
08
Saúde
992
09
Novas, medios e blogs
854
10
Goberno
757
0%
20%
40%
60%
80%
100%
% dos enquisados
9,735
75%
20
10

Patróns para aplicacións

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.

Cales das seguintes arquitecturas e patróns de renderizado usaches no último ano?
Multiple
0%
20%
40%
60%
80%
100%
01
Aplicacións dunha páxina (SPA)
9,467
02
Renderizado no servidor (SSR)
6,308
03
Xeración de páxinas estáticas (SSG)
4,865
04
Aplicacións con múltiples páxinas (MPA)
4,228
05
Hidratación parcial
2,302
06
Arquitectura de illas
1,646
07
Mellora progresiva
1,335
08
Streaming SSR
+1
1,061
09
Prerenderizado parcial
+1
922
10
Xeración estática incremental
-2
917
0%
20%
40%
60%
80%
100%
% dos enquisados
10,623
82%
10

Inconvenientes de JavaScript

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

Con que aspectos de JavaScript tes máis problemas?
Multiple
0%
20%
40%
60%
80%
100%
01
Arquitectura de código
3,809
02
Manexo de estados
3,490
03
Manexo de dependecias
3,203
04
Manexo de datas
+3
2,681
05
Rendemento
2,578
06
Ferramentas de empaquetamento
-2
2,303
07
Depuración
-1
2,177
08
Tipos
1,916
09
Busca de paquetes
+1
1,303
10
Código asíncrono
-1
1,110
0%
20%
40%
60%
80%
100%
% dos enquisados
10,171
78%
10

Satisfacción coas tecnoloxías web

Happiness is once again stable.

Como de satisfeito estas co estado xeral da tecnoloxía web?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
1
2
3
4
5
Media {axis}
10,724
82%
3.8
4
10

Satisfacción con JavaScript

Happiness levels remain constant once again.

Como de satisfeito estas co estado xeral de JavaScript?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
1
2
3
4
5
Media {axis}
10,820
83%
3.8
4
10

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Grazas aos nosos colaboradores por darnos o seu apoio! Saber máis.