Compare · backend frameworks

Express.js VS FastAPI_

As of 30 October 2026, FastAPI is named by 2,460 companies and Express.js by 1,461; Express.js skews to companies under 200 people (64% vs 56%), FastAPI to companies over 1,000 (23% vs 16%).

As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

The website-and-DNS footprint is not comparable between a marketing suite and a CRM: Express.js's script and mail records show on hundreds of thousands of small sites, FastAPI rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

Express.js: 2–200 employees
64%
FastAPI: 2–200 employees
56%
Express.js: 1,000+ employees
16%
FastAPI: 1,000+ employees
23%
Postings per company, 90 days
1.8 · 2.6
Website or DNS footprint
0 · 0
1,461companies name Express.js
2,460companies name FastAPI
192name both
2,616 · 6,514postings in 90 days, Express.js · FastAPI
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentExpress.jsshareFastAPIshareLeans
Self-employed252%703%even
2-10 employees17912%35614%FastAPI
11-50 employees43930%50821%Express.js
51-200 employees32422%51221%even
201-500 employees15210%27111%even
501-1000 employees1047%1858%even
1001-5000 employees1067%26011%FastAPI
5001-10000 employees383%793%even
10,001+ employees946%2199%FastAPI
By industry
SegmentExpress.jsshareFastAPIshareLeans
Technology & software89962%1,45659%Express.js
Business & finance services24417%46319%FastAPI
Manufacturing & industry715%1827%FastAPI
Consumer services & leisure483%623%even
Media & content403%562%even
Health care282%261%even
Property & construction262%271%even
Commerce & trade232%372%even
Public, community & associations222%572%even
Hospitality & travel201%––outside top 12
Automotive141%171%even
Utilities & infrastructure141%502%even
Transport, logistics & rental––141%outside top 12
By country
SegmentExpress.jsshareFastAPIshareLeans
United States84158%1,40257%even
India18212%1305%Express.js
United Kingdom795%1908%FastAPI
Germany524%1396%FastAPI
Canada383%492%even
France332%934%even
Singapore232%321%even
Australia141%261%even
Italy141%281%even
Brazil121%––outside top 12
United Arab Emirates111%––outside top 12
Netherlands111%281%even
Poland––372%outside top 12
Spain––271%outside top 12
Postings by team (share of each tool's postings)
SegmentExpress.jsshareFastAPIshareLeans
Software engineering3,00075%4,79655%Express.js
IT operations & business systems1323%2453%even
Data & AI1283%2,63430%FastAPI
Engineering (non-software)531%881%even
Sales311%190%even
real estate and property301%––outside top 12
Administration & office281%––outside top 12
Finance & accounting281%120%even
Marketing & communications271%130%even
Education & training231%80%even
Product, program & project management211%521%even
Customer service & success180%80%even
Unclassified––230%outside top 12
General management & consulting––180%outside top 12
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

FastAPI is named by 2,460 companies in job postings and Express.js by 1,461; 192 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/express-js-vs-fastapi)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • SegmentsCountry, size and industry from the company profile built from its website.
  • Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
FAQ

Express.js vs FastAPI: questions

Which is more used, Express.js or FastAPI?

By companies naming it in their own job postings, FastAPI (2,460) over Express.js (1,461). By website-and-DNS footprint, FastAPI (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses Express.js?

64% of Express.js companies have 2 to 200 employees, against 56% for FastAPI. 16% of Express.js companies have over 1,000 employees, against 23% for FastAPI.

Do companies run both?

192 companies name both in their postings, usually Express.js in marketing and FastAPI in sales, or during a migration.

Where do these numbers come from?

From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.

Companies and people

Get either list your way

The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.

Every company on either tool,
with the person who owns it

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