Skip to content

Libraries

Changes Over Time

Each line goes from 2016 to 2020. A higher point means a technology has been used by more people, and a point further to the right means more users want to learn it; or have used it and would use it again.

X-axis rangeNegative opinionsPositive opinionsY-axis rangeHave usedHave not usedReact. Velocity: 39.2. Overall more negative opinions and/or less usage over time.react, 2016:Mostly positive opinions (68.5%),[en-US] charts.tools_arrows.usage_high (5.3%)react, 2017:Mostly positive opinions (69.3%),[en-US] charts.tools_arrows.usage_high (23.9%)react, 2018:Mostly positive opinions (67.9%),[en-US] charts.tools_arrows.usage_high (42.89%)react, 2019:Mostly positive opinions (67.4%),[en-US] charts.tools_arrows.usage_high (60.3%)react, 2020:Mostly positive opinions (63.2%),[en-US] charts.tools_arrows.usage_high (60.09%)react, 2021:Mostly positive opinions (53.2%),[en-US] charts.tools_arrows.usage_high (59.8%)Vue.js. Velocity: 104.2. Overall more negative opinions and/or less usage over time.vuejs, 2016:Mostly positive opinions (8.9%),[en-US] charts.tools_arrows.usage_low (-80.1%)vuejs, 2017:Mostly positive opinions (47.39%),[en-US] charts.tools_arrows.usage_low (-56.9%)vuejs, 2018:Mostly positive opinions (52.3%),[en-US] charts.tools_arrows.usage_low (-36.9%)vuejs, 2019:Mostly positive opinions (49.7%),[en-US] charts.tools_arrows.usage_low (-7.2%)vuejs, 2020:Mostly positive opinions (47.1%),[en-US] charts.tools_arrows.usage_low (-2.1%)vuejs, 2021:Mostly positive opinions (30.7%),[en-US] charts.tools_arrows.usage_high (2.29%)Angular. Velocity: 23.7. Overall more negative opinions and/or less usage over time.angular, 2016:Mostly positive opinions (7.69%),[en-US] charts.tools_arrows.usage_low (-60.1%)angular, 2017:Mostly negative opinions (-10.2%),[en-US] charts.tools_arrows.usage_low (-43.2%)angular, 2018:Mostly negative opinions (-31.5%),[en-US] charts.tools_arrows.usage_high (15.3%)angular, 2019:Mostly negative opinions (-36.39%),[en-US] charts.tools_arrows.usage_high (15.4%)angular, 2020:Mostly negative opinions (-35%),[en-US] charts.tools_arrows.usage_high (11.6%)angular, 2021:Mostly negative opinions (-36.4%),[en-US] charts.tools_arrows.usage_high (7.7%)Preact. Velocity: 0.19. Overall more negative opinions and/or less usage over time.preact, 2018:Mostly negative opinions (-4.5%),[en-US] charts.tools_arrows.usage_low (-85.1%)preact, 2019:Mostly negative opinions (-5.39%),[en-US] charts.tools_arrows.usage_low (-75.59%)preact, 2020:Mostly negative opinions (-5.79%),[en-US] charts.tools_arrows.usage_low (-73.2%)preact, 2021:Mostly negative opinions (-17.39%),[en-US] charts.tools_arrows.usage_low (-72%)Ember. Velocity: -36.39. Overall more positive opinions and/or usage over time.ember, 2016:Mostly negative opinions (-37.79%),[en-US] charts.tools_arrows.usage_low (-72.3%)ember, 2017:Mostly negative opinions (-45.7%),[en-US] charts.tools_arrows.usage_low (-77.3%)ember, 2018:Mostly negative opinions (-54.4%),[en-US] charts.tools_arrows.usage_low (-77.5%)ember, 2019:Mostly negative opinions (-54.99%),[en-US] charts.tools_arrows.usage_low (-76%)ember, 2020:Mostly negative opinions (-58.2%),[en-US] charts.tools_arrows.usage_low (-78%)ember, 2021:Mostly negative opinions (-64.89%),[en-US] charts.tools_arrows.usage_low (-81.59%)Svelte. Velocity: 38. Overall more negative opinions and/or less usage over time.svelte, 2019:Mostly positive opinions (28.29%),[en-US] charts.tools_arrows.usage_low (-84.4%)svelte, 2020:Mostly positive opinions (34.29%),[en-US] charts.tools_arrows.usage_low (-70.89%)svelte, 2021:Mostly positive opinions (42.2%),[en-US] charts.tools_arrows.usage_low (-60.3%)Alpine.js. Velocity: -0.59. Overall more positive opinions and/or usage over time.alpinejs, 2020:Mostly negative opinions (-5.4%),[en-US] charts.tools_arrows.usage_low (-93.4%)alpinejs, 2021:Mostly negative opinions (-10.8%),[en-US] charts.tools_arrows.usage_low (-88.6%)Lit. Velocity: 2.69. Overall more negative opinions and/or less usage over time.litelement, 2020:Mostly negative opinions (-1.69%),[en-US] charts.tools_arrows.usage_low (-89.19%)litelement, 2021:Mostly negative opinions (-2.3%),[en-US] charts.tools_arrows.usage_low (-85.9%)Stimulus. Velocity: -2.89. Overall more positive opinions and/or usage over time.stimulus, 2020:Mostly negative opinions (-6.7%),[en-US] charts.tools_arrows.usage_low (-97.5%)stimulus, 2021:Mostly negative opinions (-10.09%),[en-US] charts.tools_arrows.usage_low (-97%)Express. Velocity: 30. Overall more negative opinions and/or less usage over time.express, 2017:Mostly positive opinions (62.9%),[en-US] charts.tools_arrows.usage_high (32.6%)express, 2018:Mostly positive opinions (68.3%),[en-US] charts.tools_arrows.usage_high (37.2%)express, 2019:Mostly positive opinions (71.69%),[en-US] charts.tools_arrows.usage_high (54.59%)express, 2020:Mostly positive opinions (71.19%),[en-US] charts.tools_arrows.usage_high (60.2%)express, 2021:Mostly positive opinions (63.6%),[en-US] charts.tools_arrows.usage_high (61.9%)Next.js. Velocity: 99.1. Overall more negative opinions and/or less usage over time.nextjs, 2018:Mostly positive opinions (24.2%),[en-US] charts.tools_arrows.usage_low (-80.4%)nextjs, 2019:Mostly positive opinions (49.5%),[en-US] charts.tools_arrows.usage_low (-45.5%)nextjs, 2020:Mostly positive opinions (55.2%),[en-US] charts.tools_arrows.usage_low (-26.8%)nextjs, 2021:Mostly positive opinions (53.1%),[en-US] charts.tools_arrows.usage_low (-10.2%)Nuxt. Velocity: 4.59. Overall more negative opinions and/or less usage over time.nuxt, 2020:Mostly positive opinions (9.69%),[en-US] charts.tools_arrows.usage_low (-66.5%)nuxt, 2021:Mostly positive opinions (8.29%),[en-US] charts.tools_arrows.usage_low (-60.5%)Gatsby. Velocity: -44.8. Overall more positive opinions and/or usage over time.gatsby, 2019:Mostly positive opinions (36.2%),[en-US] charts.tools_arrows.usage_low (-50.4%)gatsby, 2020:Mostly positive opinions (16.3%),[en-US] charts.tools_arrows.usage_low (-43.8%)gatsby, 2021:Mostly negative opinions (-12.5%),[en-US] charts.tools_arrows.usage_low (-46.5%)Nest. Velocity: 15.3. Overall more negative opinions and/or less usage over time.nest, 2020:Mostly positive opinions (12.09%),[en-US] charts.tools_arrows.usage_low (-74.4%)nest, 2021:Mostly positive opinions (14.8%),[en-US] charts.tools_arrows.usage_low (-61.8%)Strapi. Velocity: 6.9. Overall more negative opinions and/or less usage over time.strapi, 2020:Mostly positive opinions (6.9%),[en-US] charts.tools_arrows.usage_low (-81.8%)strapi, 2021:Mostly positive opinions (7.1%),[en-US] charts.tools_arrows.usage_low (-75.09%)Fastify. Velocity: 18.39. Overall more negative opinions and/or less usage over time.fastify, 2020:Mostly positive opinions (7.19%),[en-US] charts.tools_arrows.usage_low (-88%)fastify, 2021:Mostly positive opinions (16.29%),[en-US] charts.tools_arrows.usage_low (-78.7%)Jest. Velocity: 198.2. Overall more negative opinions and/or less usage over time.jest, 2016:Mostly positive opinions (6.4%),[en-US] charts.tools_arrows.usage_low (-84.1%)jest, 2017:Mostly positive opinions (42.1%),[en-US] charts.tools_arrows.usage_low (-47.2%)jest, 2018:Mostly positive opinions (59%),[en-US] charts.tools_arrows.usage_low (-17.89%)jest, 2019:Mostly positive opinions (76.7%),[en-US] charts.tools_arrows.usage_high (26.89%)jest, 2020:Mostly positive opinions (79%),[en-US] charts.tools_arrows.usage_high (36.49%)jest, 2021:Mostly positive opinions (75.2%),[en-US] charts.tools_arrows.usage_high (45.3%)Mocha. Velocity: -44.1. Overall more positive opinions and/or usage over time.mocha, 2016:Mostly positive opinions (62.2%),[en-US] charts.tools_arrows.usage_low (-2.89%)mocha, 2017:Mostly positive opinions (55.59%),[en-US] charts.tools_arrows.usage_high (3.4%)mocha, 2018:Mostly positive opinions (41.59%),[en-US] charts.tools_arrows.usage_low (-4.19%)mocha, 2019:Mostly positive opinions (36.4%),[en-US] charts.tools_arrows.usage_high (8.1%)mocha, 2020:Mostly positive opinions (28.5%),[en-US] charts.tools_arrows.usage_high (5.29%)mocha, 2021:Mostly positive opinions (14.69%),[en-US] charts.tools_arrows.usage_high (0.5%)Storybook. Velocity: 82.8. Overall more negative opinions and/or less usage over time.storybook, 2018:Mostly positive opinions (31.3%),[en-US] charts.tools_arrows.usage_low (-65.5%)storybook, 2019:Mostly positive opinions (47.9%),[en-US] charts.tools_arrows.usage_low (-29.9%)storybook, 2020:Mostly positive opinions (53.1%),[en-US] charts.tools_arrows.usage_low (-15.79%)storybook, 2021:Mostly positive opinions (52.8%),[en-US] charts.tools_arrows.usage_low (-4.19%)Cypress. Velocity: 46.3. Overall more negative opinions and/or less usage over time.cypress, 2019:Mostly positive opinions (41.39%),[en-US] charts.tools_arrows.usage_low (-48.9%)cypress, 2020:Mostly positive opinions (51.6%),[en-US] charts.tools_arrows.usage_low (-29.8%)cypress, 2021:Mostly positive opinions (53.5%),[en-US] charts.tools_arrows.usage_low (-14.69%)Enzyme. Velocity: 43.69. Overall more negative opinions and/or less usage over time.enzyme, 2016:Mostly positive opinions (17.8%),[en-US] charts.tools_arrows.usage_low (-78%)enzyme, 2017:Mostly positive opinions (24.5%),[en-US] charts.tools_arrows.usage_low (-59.1%)enzyme, 2018:Mostly positive opinions (23.4%),[en-US] charts.tools_arrows.usage_low (-54.3%)enzyme, 2019:Mostly positive opinions (17.19%),[en-US] charts.tools_arrows.usage_low (-33.7%)AVA. Velocity: -7.09. Overall more positive opinions and/or usage over time.ava, 2016:Mostly positive opinions (7.3%),[en-US] charts.tools_arrows.usage_low (-91.2%)ava, 2017:Mostly positive opinions (4.4%),[en-US] charts.tools_arrows.usage_low (-86.9%)ava, 2018:Mostly negative opinions (-2.3%),[en-US] charts.tools_arrows.usage_low (-88.8%)ava, 2019:Mostly negative opinions (-3.2%),[en-US] charts.tools_arrows.usage_low (-84%)ava, 2020:Mostly negative opinions (-3.69%),[en-US] charts.tools_arrows.usage_low (-84.4%)ava, 2021:Mostly negative opinions (-5.7%),[en-US] charts.tools_arrows.usage_low (-85.3%)Jasmine. Velocity: -70.09. Overall more positive opinions and/or usage over time.jasmine, 2016:Mostly positive opinions (46.59%),[en-US] charts.tools_arrows.usage_low (-4.7%)jasmine, 2017:Mostly positive opinions (39.5%),[en-US] charts.tools_arrows.usage_low (-2.09%)jasmine, 2018:Mostly positive opinions (21.2%),[en-US] charts.tools_arrows.usage_low (-23.7%)jasmine, 2019:Mostly positive opinions (10.5%),[en-US] charts.tools_arrows.usage_low (-14.5%)jasmine, 2020:Mostly positive opinions (3.39%),[en-US] charts.tools_arrows.usage_low (-16%)jasmine, 2021:Mostly negative opinions (-7.8%),[en-US] charts.tools_arrows.usage_low (-20.4%)Puppeteer. Velocity: 13.59. Overall more negative opinions and/or less usage over time.puppeteer, 2019:Mostly positive opinions (36.1%),[en-US] charts.tools_arrows.usage_low (-45.5%)puppeteer, 2020:Mostly positive opinions (37.5%),[en-US] charts.tools_arrows.usage_low (-33%)puppeteer, 2021:Mostly positive opinions (30.29%),[en-US] charts.tools_arrows.usage_low (-26.1%)Testing Library. Velocity: 26.9. Overall more negative opinions and/or less usage over time.testing_library, 2020:Mostly positive opinions (33.1%),[en-US] charts.tools_arrows.usage_low (-47.2%)testing_library, 2021:Mostly positive opinions (42.6%),[en-US] charts.tools_arrows.usage_low (-29.8%)Playwright. Velocity: 21.3. Overall more negative opinions and/or less usage over time.playwright, 2020:Mostly positive opinions (8.8%),[en-US] charts.tools_arrows.usage_low (-93.4%)playwright, 2021:Mostly positive opinions (17.8%),[en-US] charts.tools_arrows.usage_low (-81.09%)WebdriverIO. Velocity: -4.99. Overall more positive opinions and/or usage over time.webdriverio, 2020:Mostly negative opinions (-0.5%),[en-US] charts.tools_arrows.usage_low (-80.2%)webdriverio, 2021:Mostly negative opinions (-5.2%),[en-US] charts.tools_arrows.usage_low (-80.5%)webpack. Velocity: 53.4. Overall more negative opinions and/or less usage over time.webpack, 2016:Mostly positive opinions (65.89%),[en-US] charts.tools_arrows.usage_high (6.29%)webpack, 2017:Mostly positive opinions (81.69%),[en-US] charts.tools_arrows.usage_high (46.09%)webpack, 2020:Mostly positive opinions (72%),[en-US] charts.tools_arrows.usage_high (77.3%)webpack, 2021:Mostly positive opinions (47.4%),[en-US] charts.tools_arrows.usage_high (78.2%)Parcel. Velocity: 0.9. Overall more negative opinions and/or less usage over time.parcel, 2020:Mostly positive opinions (32.19%),[en-US] charts.tools_arrows.usage_low (-45.2%)parcel, 2021:Mostly positive opinions (26%),[en-US] charts.tools_arrows.usage_low (-38.1%)Gulp. Velocity: -102.3. Overall more positive opinions and/or usage over time.gulp, 2016:Mostly positive opinions (40.1%),[en-US] charts.tools_arrows.usage_high (46.99%)gulp, 2017:Mostly positive opinions (18%),[en-US] charts.tools_arrows.usage_high (48.8%)gulp, 2020:Mostly negative opinions (-29.6%),[en-US] charts.tools_arrows.usage_high (30.19%)gulp, 2021:Mostly negative opinions (-40.8%),[en-US] charts.tools_arrows.usage_high (25.6%)Rollup. Velocity: 70.3. Overall more negative opinions and/or less usage over time.rollup, 2017:Mostly positive opinions (14.5%),[en-US] charts.tools_arrows.usage_low (-78.4%)rollup, 2020:Mostly positive opinions (28.4%),[en-US] charts.tools_arrows.usage_low (-39.9%)rollup, 2021:Mostly positive opinions (28.7%),[en-US] charts.tools_arrows.usage_low (-22.3%)Browserify. Velocity: -65.7. Overall more positive opinions and/or usage over time.browserify, 2016:Mostly positive opinions (8.89%),[en-US] charts.tools_arrows.usage_low (-5.89%)browserify, 2017:Mostly negative opinions (-16.5%),[en-US] charts.tools_arrows.usage_low (-7.09%)browserify, 2020:Mostly negative opinions (-25.7%),[en-US] charts.tools_arrows.usage_low (-30.2%)browserify, 2021:Mostly negative opinions (-30.7%),[en-US] charts.tools_arrows.usage_low (-32%)tsc CLI. Velocity: 51.79. Overall more negative opinions and/or less usage over time.tsc, 2020:Mostly positive opinions (59.1%),[en-US] charts.tools_arrows.usage_high (23.29%)tsc, 2021:Mostly positive opinions (76.9%),[en-US] charts.tools_arrows.usage_high (57.29%)Rome. Velocity: -7. Overall more positive opinions and/or usage over time.rome, 2020:Mostly positive opinions (14.7%),[en-US] charts.tools_arrows.usage_low (-98.5%)rome, 2021:Mostly positive opinions (7.4%),[en-US] charts.tools_arrows.usage_low (-98.2%)Snowpack. Velocity: -3.1. Overall more positive opinions and/or usage over time.snowpack, 2020:Mostly positive opinions (24.2%),[en-US] charts.tools_arrows.usage_low (-89.1%)snowpack, 2021:Mostly positive opinions (11.8%),[en-US] charts.tools_arrows.usage_low (-79.8%)SWC. Velocity: 29.59. Overall more negative opinions and/or less usage over time.swc, 2020:Mostly positive opinions (1.79%),[en-US] charts.tools_arrows.usage_low (-98.4%)swc, 2021:Mostly positive opinions (18.39%),[en-US] charts.tools_arrows.usage_low (-85.4%)esbuild. Velocity: 73.7. Overall more negative opinions and/or less usage over time.esbuild, 2020:Mostly positive opinions (15.9%),[en-US] charts.tools_arrows.usage_low (-89%)esbuild, 2021:Mostly positive opinions (48.2%),[en-US] charts.tools_arrows.usage_low (-47.6%)Electron. Velocity: 13.4. Overall more negative opinions and/or less usage over time.electron, 2017:Mostly positive opinions (52.89%),[en-US] charts.tools_arrows.usage_low (-55.1%)electron, 2018:Mostly positive opinions (54.3%),[en-US] charts.tools_arrows.usage_low (-55.1%)electron, 2019:Mostly positive opinions (50.4%),[en-US] charts.tools_arrows.usage_low (-40.29%)electron, 2020:Mostly positive opinions (52.59%),[en-US] charts.tools_arrows.usage_low (-33.7%)electron, 2021:Mostly positive opinions (39.3%),[en-US] charts.tools_arrows.usage_low (-28.1%)React Native. Velocity: 11.39. Overall more negative opinions and/or less usage over time.reactnative, 2016:Mostly positive opinions (54.3%),[en-US] charts.tools_arrows.usage_low (-72.3%)reactnative, 2017:Mostly positive opinions (58.3%),[en-US] charts.tools_arrows.usage_low (-56.8%)reactnative, 2018:Mostly positive opinions (46.2%),[en-US] charts.tools_arrows.usage_low (-55.4%)reactnative, 2019:Mostly positive opinions (44.49%),[en-US] charts.tools_arrows.usage_low (-33.9%)reactnative, 2020:Mostly positive opinions (39.1%),[en-US] charts.tools_arrows.usage_low (-30.2%)reactnative, 2021:Mostly positive opinions (25.4%),[en-US] charts.tools_arrows.usage_low (-32%)Native Apps. Velocity: -63.6. Overall more positive opinions and/or usage over time.nativeapps, 2016:Mostly positive opinions (42.4%),[en-US] charts.tools_arrows.usage_low (-29.6%)nativeapps, 2017:Mostly positive opinions (49%),[en-US] charts.tools_arrows.usage_low (-21.99%)nativeapps, 2018:Mostly positive opinions (5.39%),[en-US] charts.tools_arrows.usage_low (-73.09%)nativeapps, 2019:Mostly positive opinions (21.4%),[en-US] charts.tools_arrows.usage_low (-63.4%)nativeapps, 2020:Mostly positive opinions (13.29%),[en-US] charts.tools_arrows.usage_low (-74.8%)nativeapps, 2021:Mostly positive opinions (11.8%),[en-US] charts.tools_arrows.usage_low (-62.6%)Cordova. Velocity: -48.6. Overall more positive opinions and/or usage over time.cordova, 2016:Mostly negative opinions (-4.09%),[en-US] charts.tools_arrows.usage_low (-31.3%)cordova, 2017:Mostly negative opinions (-30.49%),[en-US] charts.tools_arrows.usage_low (-31.99%)cordova, 2018:Mostly negative opinions (-42.1%),[en-US] charts.tools_arrows.usage_low (-40.4%)cordova, 2019:Mostly negative opinions (-43.3%),[en-US] charts.tools_arrows.usage_low (-38%)cordova, 2020:Mostly negative opinions (-42.5%),[en-US] charts.tools_arrows.usage_low (-31.7%)cordova, 2021:Mostly negative opinions (-48.4%),[en-US] charts.tools_arrows.usage_low (-35.6%)Ionic. Velocity: 8.89. Overall more negative opinions and/or less usage over time.ionic, 2017:Mostly negative opinions (-12%),[en-US] charts.tools_arrows.usage_low (-59.4%)ionic, 2018:Mostly negative opinions (-24.3%),[en-US] charts.tools_arrows.usage_low (-67.69%)ionic, 2019:Mostly negative opinions (-23.9%),[en-US] charts.tools_arrows.usage_low (-53.4%)ionic, 2020:Mostly negative opinions (-18.7%),[en-US] charts.tools_arrows.usage_low (-42.2%)ionic, 2021:Mostly negative opinions (-19.79%),[en-US] charts.tools_arrows.usage_low (-42.7%)NW.js. Velocity: 0.19. Overall more negative opinions and/or less usage over time.nwjs, 2019:Mostly negative opinions (-12.3%),[en-US] charts.tools_arrows.usage_low (-90.69%)nwjs, 2020:Mostly negative opinions (-8.79%),[en-US] charts.tools_arrows.usage_low (-91.19%)nwjs, 2021:Mostly negative opinions (-11.2%),[en-US] charts.tools_arrows.usage_low (-91.6%)Expo. Velocity: 7.89. Overall more negative opinions and/or less usage over time.expo, 2019:Mostly positive opinions (7.19%),[en-US] charts.tools_arrows.usage_low (-60%)expo, 2020:Mostly positive opinions (11.6%),[en-US] charts.tools_arrows.usage_low (-53.2%)expo, 2021:Mostly positive opinions (9.19%),[en-US] charts.tools_arrows.usage_low (-54.1%)Capacitor. Velocity: 8.6. Overall more negative opinions and/or less usage over time.capacitor, 2020:Mostly positive opinions (5.1%),[en-US] charts.tools_arrows.usage_low (-81%)capacitor, 2021:Mostly positive opinions (5.3%),[en-US] charts.tools_arrows.usage_low (-72.59%)Quasar. Velocity: -0.3. Overall more positive opinions and/or usage over time.quasar, 2020:Mostly negative opinions (-2.9%),[en-US] charts.tools_arrows.usage_low (-93.1%)quasar, 2021:Mostly negative opinions (-5.29%),[en-US] charts.tools_arrows.usage_low (-91%)

Legend

Rising popularity

Falling popularity

  • Some lines skip years.
  • Technologies with only one year of data are not shown.
  • Velocity formula = (most recent opinion - oldest opinion) + (most recent usage) - (oldest usage)
  • A positive velocity means the usage and/or positive opinions have increased over time.

Library Tier List

This chart ranks libraries based on their satisfaction ratio (percentage of users who would use a library again). Note that libraries used by less than 10% of survey respondents are not included.

Front-end Frameworks
Back-end Frameworks
Testing
Build Tools
Mobile & Desktop
Monorepo Tools
S
90%
A
80%
B
60%
C

Satisfaction vs Usage

This chart shows each technology's satisfaction ratio (or interest ratio) over its total user count. It can be divided into four quadrants:

  • 1: Low usage, high satisfaction. Technologies worth keeping an eye on.

  • 2: High usage, high satisfaction. Safe technologies to adopt.

  • 3: Low usage, low satisfaction. Technologies that are harder to recommend currently.

  • 4: High usage, low satisfaction. Reassess these technologies if you're currently using them.

Front-end Frameworks
Back-end Frameworks
Testing
Build Tools
Mobile & Desktop
Monorepo Tools

Technology Usage Cardinality

For each section, which percentage of respondents use (defined as having answered “would use again”) one, two, three, etc. technologies. The bottom-most bar represents the sum of all other bars.

Front-end Frameworks

81.8%
1
Most common answer
37.4%
2
28.3%
3
11.4%
4
3.4%
5
1.0%
6
0.2%
7
0.1%
8
0.0%
9
0.0%
10
0.0%

Back-end Frameworks

72.4%
1
22.7%
2
Most common answer
23.6%
3
14.4%
4
7.1%
5
3.1%
6
1.0%
7
0.3%
8
0.1%
9
0.1%
10
0.0%
11
0.0%
12
0.0%
13
0.0%

Testing

69.9%
1
11.1%
2
12.7%
3
Most common answer
14.5%
4
13.7%
5
9.7%
6
5.2%
7
2.1%
8
0.7%
9
0.2%
10
0.0%
11
0.0%

Build Tools

77.9%
1
11.8%
2
Most common answer
21.3%
3
18.1%
4
12.7%
5
7.7%
6
4.0%
7
1.7%
8
0.5%
9
0.1%
10
0.0%
11
0.0%
12
0.0%

Mobile & Desktop

48.4%
1
Most common answer
18.3%
2
14.7%
3
9.4%
4
4.0%
5
1.4%
6
0.5%
7
0.1%
8
0.0%
9
0.0%
10
0.0%

Monorepo Tools

37.9%
1
Most common answer
21.8%
2
11.0%
3
3.7%
4
1.2%
5
0.2%
6
0.0%
7
0.0%
8
0.0%