ASP.NET Web Forms VS Flask
As of 30 October 2026, Flask is named by 1,370 companies and ASP.NET Web Forms by 136; ASP.NET Web Forms skews to companies under 200 people (47% vs 54%), Flask to companies over 1,000 (24% vs 28%).
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: ASP.NET Web Forms's script and mail records show on hundreds of thousands of small sites, Flask rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- ASP.NET Web Forms: 2–200 employees
- 47%
- Flask: 2–200 employees
- 54%
- ASP.NET Web Forms: 1,000+ employees
- 28%
- Flask: 1,000+ employees
- 24%
- Postings per company, 90 days
- 1.4 · 2.4
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | ASP.NET Web Forms | share | Flask | share | Leans |
|---|---|---|---|---|---|
| 2-10 employees | 15 | 11% | 154 | 11% | even |
| 11-50 employees | 26 | 19% | 289 | 21% | even |
| 51-200 employees | 23 | 17% | 296 | 22% | Flask |
| 201-500 employees | 28 | 21% | 171 | 12% | ASP.NET Web Forms |
| 501-1000 employees | 6 | 4% | 111 | 8% | Flask |
| 1001-5000 employees | 21 | 15% | 145 | 11% | ASP.NET Web Forms |
| 5001-10000 employees | 1 | 1% | 49 | 4% | Flask |
| 10,001+ employees | 16 | 12% | 137 | 10% | even |
| Self-employed | – | – | 18 | 1% | outside top 12 |
| Segment | ASP.NET Web Forms | share | Flask | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 84 | 62% | 812 | 59% | ASP.NET Web Forms |
| Business & finance services | 27 | 20% | 239 | 17% | ASP.NET Web Forms |
| Automotive | 4 | 3% | 11 | 1% | ASP.NET Web Forms |
| Consumer services & leisure | 4 | 3% | 47 | 3% | even |
| Manufacturing & industry | 4 | 3% | 104 | 8% | Flask |
| Commerce & trade | 3 | 2% | 20 | 1% | even |
| Media & content | 3 | 2% | 29 | 2% | even |
| Transport, logistics & rental | 3 | 2% | 10 | 1% | even |
| Public, community & associations | 2 | 1% | 35 | 3% | even |
| Utilities & infrastructure | 2 | 1% | 24 | 2% | even |
| Health care | – | – | 16 | 1% | outside top 12 |
| Property & construction | – | – | 15 | 1% | outside top 12 |
| Segment | ASP.NET Web Forms | share | Flask | share | Leans |
|---|---|---|---|---|---|
| United States | 74 | 54% | 810 | 59% | Flask |
| India | 11 | 8% | 113 | 8% | even |
| Canada | 7 | 5% | 32 | 2% | ASP.NET Web Forms |
| United Kingdom | 7 | 5% | 93 | 7% | even |
| Italy | 4 | 3% | 16 | 1% | even |
| Poland | 4 | 3% | 15 | 1% | even |
| Brazil | 3 | 2% | – | – | outside top 12 |
| France | 3 | 2% | 43 | 3% | even |
| Singapore | 3 | 2% | 28 | 2% | even |
| United Arab Emirates | 2 | 1% | – | – | outside top 12 |
| Germany | 2 | 1% | 41 | 3% | even |
| Ireland | 2 | 1% | – | – | outside top 12 |
| Switzerland | – | – | 15 | 1% | outside top 12 |
| Belgium | – | – | 12 | 1% | outside top 12 |
| Sweden | – | – | 12 | 1% | outside top 12 |
| Segment | ASP.NET Web Forms | share | Flask | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 319 | 81% | 3,016 | 64% | ASP.NET Web Forms |
| IT operations & business systems | 33 | 8% | 101 | 2% | ASP.NET Web Forms |
| Data & AI | 11 | 3% | 1,050 | 22% | Flask |
| Product, program & project management | 4 | 1% | 13 | 0% | even |
| Marketing & communications | 2 | 1% | 5 | 0% | even |
| Sales | 2 | 1% | 10 | 0% | even |
| Customer service & success | 1 | 0% | 5 | 0% | even |
| Engineering (non-software) | 1 | 0% | 48 | 1% | even |
| Human resources | 1 | 0% | – | – | outside top 12 |
| Quality, safety & environment | 1 | 0% | – | – | outside top 12 |
| Unclassified | 1 | 0% | 15 | 0% | even |
| General management & consulting | – | – | 10 | 0% | outside top 12 |
| Design & UX | – | – | 6 | 0% | outside top 12 |
| Education & training | – | – | 5 | 0% | outside top 12 |
The companies behind each column
Companies using ASP.NET Web Forms →
Companies using Flask →
backend frameworks ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Flask is named by 1,370 companies in job postings and ASP.NET Web Forms by 136; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/asp-dot-net-web-forms-vs-flask)
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.
ASP.NET Web Forms vs Flask: questions
Which is more used, ASP.NET Web Forms or Flask?
By companies naming it in their own job postings, Flask (1,370) over ASP.NET Web Forms (136). By website-and-DNS footprint, Flask (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses ASP.NET Web Forms?
47% of ASP.NET Web Forms companies have 2 to 200 employees, against 54% for Flask. 28% of ASP.NET Web Forms companies have over 1,000 employees, against 24% for Flask.
Do companies run both?
0 companies name both in their postings, usually ASP.NET Web Forms in marketing and Flask 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.
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
Filter on ASP.NET Web Forms or Flask. Start free, no card.