Flask VS Jakarta Persistence
As of 30 October 2026, Jakarta Persistence is named by 637 companies and Flask by 1,370; Flask skews to companies under 200 people (54% vs 51%), Jakarta Persistence to companies over 1,000 (27% 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 Persistence 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 Persistence: 2–200 employees
- 51%
- Flask: 1,000+ employees
- 24%
- Jakarta Persistence: 1,000+ employees
- 27%
- Postings per company, 90 days
- 2.4 · 2.5
- 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 Persistence | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 18 | 1% | 5 | 1% | even |
| 2-10 employees | 154 | 11% | 38 | 6% | Flask |
| 11-50 employees | 289 | 21% | 140 | 22% | even |
| 51-200 employees | 296 | 22% | 144 | 23% | even |
| 201-500 employees | 171 | 12% | 94 | 15% | Jakarta Persistence |
| 501-1000 employees | 111 | 8% | 46 | 7% | even |
| 1001-5000 employees | 145 | 11% | 77 | 12% | even |
| 5001-10000 employees | 49 | 4% | 27 | 4% | even |
| 10,001+ employees | 137 | 10% | 66 | 10% | even |
| Segment | Flask | share | Jakarta Persistence | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 812 | 59% | 412 | 65% | Jakarta Persistence |
| Business & finance services | 239 | 17% | 134 | 21% | Jakarta Persistence |
| Manufacturing & industry | 104 | 8% | 23 | 4% | Flask |
| Consumer services & leisure | 47 | 3% | 14 | 2% | even |
| Public, community & associations | 35 | 3% | 6 | 1% | even |
| Media & content | 29 | 2% | 9 | 1% | even |
| Utilities & infrastructure | 24 | 2% | 8 | 1% | even |
| Commerce & trade | 20 | 1% | 6 | 1% | even |
| Health care | 16 | 1% | 5 | 1% | even |
| Property & construction | 15 | 1% | 5 | 1% | even |
| Automotive | 11 | 1% | – | – | outside top 12 |
| Transport, logistics & rental | 10 | 1% | 11 | 2% | even |
| Hospitality & travel | – | – | 3 | 0% | outside top 12 |
| Segment | Flask | share | Jakarta Persistence | share | Leans |
|---|---|---|---|---|---|
| United States | 810 | 59% | 293 | 46% | Flask |
| India | 113 | 8% | 28 | 4% | Flask |
| United Kingdom | 93 | 7% | 37 | 6% | even |
| France | 43 | 3% | 34 | 5% | Jakarta Persistence |
| Germany | 41 | 3% | 58 | 9% | Jakarta Persistence |
| Canada | 32 | 2% | – | – | outside top 12 |
| Singapore | 28 | 2% | – | – | outside top 12 |
| Italy | 16 | 1% | 18 | 3% | even |
| Switzerland | 15 | 1% | 17 | 3% | even |
| Poland | 15 | 1% | 12 | 2% | even |
| Belgium | 12 | 1% | 11 | 2% | even |
| Sweden | 12 | 1% | – | – | outside top 12 |
| Spain | – | – | 13 | 2% | outside top 12 |
| Brazil | – | – | 12 | 2% | outside top 12 |
| Netherlands | – | – | 11 | 2% | outside top 12 |
| Segment | Flask | share | Jakarta Persistence | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 3,016 | 64% | 2,422 | 88% | Jakarta Persistence |
| Data & AI | 1,050 | 22% | 14 | 1% | Flask |
| IT operations & business systems | 101 | 2% | 62 | 2% | even |
| Engineering (non-software) | 48 | 1% | 17 | 1% | even |
| Unclassified | 15 | 0% | 39 | 1% | even |
| Product, program & project management | 13 | 0% | 11 | 0% | 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% | 2 | 0% | even |
| Education & training | 5 | 0% | 4 | 0% | even |
| Marketing & communications | 5 | 0% | – | – | outside top 12 |
| Finance & accounting | – | – | 3 | 0% | outside top 12 |
| Construction and civil | – | – | 2 | 0% | outside top 12 |
| Human resources | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using Flask →
Companies using Jakarta Persistence →
backend frameworks ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Jakarta Persistence is named by 637 companies in job postings and Flask by 1,370; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/flask-vs-jakarta-persistence)
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 Persistence: questions
Which is more used, Flask or Jakarta Persistence?
By companies naming it in their own job postings, Flask (1,370) over Jakarta Persistence (637). By website-and-DNS footprint, Jakarta Persistence (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 51% for Jakarta Persistence. 24% of Flask companies have over 1,000 employees, against 27% for Jakarta Persistence.
Do companies run both?
0 companies name both in their postings, usually Flask in marketing and Jakarta Persistence 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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