Flask VS Jakarta Server Faces
As of 30 October 2026, Jakarta Server Faces is named by 190 companies and Flask by 1,370; Flask skews to companies under 200 people (54% vs 58%), Jakarta Server Faces to companies over 1,000 (24% vs 24%).
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: Flask's script and mail records show on hundreds of thousands of small sites, Jakarta Server Faces rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Flask: 2–200 employees
- 54%
- Jakarta Server Faces: 2–200 employees
- 58%
- Flask: 1,000+ employees
- 24%
- Jakarta Server Faces: 1,000+ employees
- 24%
- Postings per company, 90 days
- 2.4 · 1.9
- 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 | Flask | share | Jakarta Server Faces | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 18 | 1% | 2 | 1% | even |
| 2-10 employees | 154 | 11% | 10 | 5% | Flask |
| 11-50 employees | 289 | 21% | 53 | 28% | Jakarta Server Faces |
| 51-200 employees | 296 | 22% | 47 | 25% | Jakarta Server Faces |
| 201-500 employees | 171 | 12% | 21 | 11% | even |
| 501-1000 employees | 111 | 8% | 11 | 6% | Flask |
| 1001-5000 employees | 145 | 11% | 27 | 14% | Jakarta Server Faces |
| 5001-10000 employees | 49 | 4% | 2 | 1% | Flask |
| 10,001+ employees | 137 | 10% | 17 | 9% | even |
| Segment | Flask | share | Jakarta Server Faces | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 812 | 59% | 136 | 72% | Jakarta Server Faces |
| Business & finance services | 239 | 17% | 29 | 15% | Flask |
| Manufacturing & industry | 104 | 8% | 6 | 3% | Flask |
| Consumer services & leisure | 47 | 3% | 5 | 3% | even |
| Public, community & associations | 35 | 3% | 2 | 1% | even |
| Media & content | 29 | 2% | 4 | 2% | even |
| Utilities & infrastructure | 24 | 2% | 1 | 1% | even |
| Commerce & trade | 20 | 1% | – | – | outside top 12 |
| Health care | 16 | 1% | 1 | 1% | even |
| Property & construction | 15 | 1% | 2 | 1% | even |
| Automotive | 11 | 1% | 2 | 1% | even |
| Transport, logistics & rental | 10 | 1% | 2 | 1% | even |
| Segment | Flask | share | Jakarta Server Faces | share | Leans |
|---|---|---|---|---|---|
| United States | 810 | 59% | 72 | 38% | Flask |
| India | 113 | 8% | 9 | 5% | Flask |
| United Kingdom | 93 | 7% | 12 | 6% | even |
| France | 43 | 3% | 17 | 9% | Jakarta Server Faces |
| Germany | 41 | 3% | 24 | 13% | Jakarta Server Faces |
| Canada | 32 | 2% | – | – | outside top 12 |
| Singapore | 28 | 2% | – | – | outside top 12 |
| Italy | 16 | 1% | 6 | 3% | even |
| Switzerland | 15 | 1% | – | – | outside top 12 |
| Poland | 15 | 1% | – | – | outside top 12 |
| Belgium | 12 | 1% | 3 | 2% | even |
| Sweden | 12 | 1% | – | – | outside top 12 |
| Brazil | – | – | 6 | 3% | outside top 12 |
| Spain | – | – | 5 | 3% | outside top 12 |
| Portugal | – | – | 4 | 2% | outside top 12 |
| Romania | – | – | 4 | 2% | outside top 12 |
| Australia | – | – | 3 | 2% | outside top 12 |
| Segment | Flask | share | Jakarta Server Faces | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 3,016 | 64% | 808 | 85% | Jakarta Server Faces |
| Data & AI | 1,050 | 22% | 4 | 0% | Flask |
| IT operations & business systems | 101 | 2% | 50 | 5% | Jakarta Server Faces |
| Engineering (non-software) | 48 | 1% | 4 | 0% | even |
| Unclassified | 15 | 0% | 2 | 0% | even |
| Product, program & project management | 13 | 0% | 11 | 1% | even |
| General management & consulting | 10 | 0% | – | – | outside top 12 |
| Sales | 10 | 0% | 2 | 0% | even |
| Design & UX | 6 | 0% | – | – | outside top 12 |
| Customer service & success | 5 | 0% | – | – | outside top 12 |
| Education & training | 5 | 0% | 1 | 0% | even |
| Marketing & communications | 5 | 0% | – | – | outside top 12 |
| Skilled trades and field service | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Flask →
Companies using Jakarta Server Faces →
backend frameworks ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Jakarta Server Faces is named by 190 companies in job postings and Flask by 1,370; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/flask-vs-jakarta-server-faces)
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.
Flask vs Jakarta Server Faces: questions
Which is more used, Flask or Jakarta Server Faces?
By companies naming it in their own job postings, Flask (1,370) over Jakarta Server Faces (190). By website-and-DNS footprint, Jakarta Server Faces (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Flask?
54% of Flask companies have 2 to 200 employees, against 58% for Jakarta Server Faces. 24% of Flask companies have over 1,000 employees, against 24% for Jakarta Server Faces.
Do companies run both?
0 companies name both in their postings, usually Flask in marketing and Jakarta Server Faces 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.
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