The most used developer tools
We track 57 developer tools. The most used is Atlassian, found at 64,105 companies as of October 2026, ahead of Cursor (6,035) and TeamViewer (4,314).
Developer tools cover how software gets built: AI code editors and agents (Cursor, Devin, Amp, Lovable), internal tool builders (Retool), containers and infrastructure tooling (Docker, HashiCorp), IDEs (JetBrains) and build systems.
Like other internal tools, they're seen mostly through domain verification and subprocessor lists, so the counts are a floor rather than an estimate of total usage.
Developer tools ranked by companies using them
“Share” is each tool's part of all 104,926 matches in this category; a company that uses two tools counts for both.
| # | Tool | Companies | Share | Last 30 days | Most popular with |
|---|---|---|---|---|---|
| 1 | 64,105 | 61% | +34−4 | 10,000+ employees (4.0×) | |
| 2 | 6,035 | 5.8% | +11 | Software (4.9×) | |
| 3 | 4,314 | 4.1% | +2−1 | 5,001–10,000 employees (12×) | |
| 4 | 2,958 | 2.8% | +4−2 | 10,000+ employees (22×) | |
| 5 | 2,833 | 2.7% | +3−1 | 10,000+ employees (8.0×) | |
| 6 | 2,492 | 2.4% | +8 | Software (6.1×) | |
| 7 | 2,113 | 2.0% | +6 | Software (3.7×) | |
| 8 | 1,805 | 1.7% | – | Non-profit Organization Management (2.8×) | |
| 9 | 1,654 | 1.6% | +1−1 | Software (4.7×) | |
| 10 | 1,584 | 1.5% | – | Medical Practice (4.6×) | |
| 11 | 1,480 | 1.4% | −1 | 10,000+ employees (4.2×) | |
| 12 | 1,431 | 1.4% | +5 | 1,001–5,000 employees (4.0×) | |
| 13 | 1,176 | 1.1% | +3 | Internet (2.5×) | |
| 14 | 916 | 0.87% | – | Hospitality (2.4×) | |
| 15 | 851 | 0.81% | – | Software (6.5×) | |
| 16 | 845 | 0.81% | +2 | 10,000+ employees (16×) | |
| 17 | 825 | 0.79% | – | – | |
| 18 | 666 | 0.63% | +21 | 10,000+ employees (17×) | |
| 19 | 600 | 0.57% | +18 | Internet (3.2×) | |
| 20 | 584 | 0.56% | −2 | 10,000+ employees (52×) | |
| 21 | 584 | 0.56% | +3 | 1,001–5,000 employees (5.2×) | |
| 22 | 428 | 0.41% | – | 1–10 employees (6.0×) | |
| 23 | 409 | 0.39% | +1−1 | 51–200 employees (1.6×) | |
| 24 | 389 | 0.37% | +1 | Engineering, Product and Design (300×) | |
| 25 | 336 | 0.32% | +2 | 10,000+ employees (19×) | |
| 26 | 311 | 0.30% | +15 | Internet (5.4×) | |
| 27 | 262 | 0.25% | – | – | |
| 28 | 240 | 0.23% | – | 1,001–5,000 employees (7.3×) | |
| 29 | 238 | 0.23% | +3 | Architecture & Planning (82×) | |
| 30 | 236 | 0.22% | +1 | Primary/secondary Education (30×) | |
| 31 | 218 | 0.21% | −1 | 1,001–5,000 employees (4.7×) | |
| 32 | 199 | 0.19% | – | 10,000+ employees (37×) | |
| 33 | 192 | 0.18% | – | 10,000+ employees (25×) | |
| 34 | 177 | 0.17% | +1 | 1,001–5,000 employees (6.7×) | |
| 35 | 147 | 0.14% | +1 | Software (4.3×) | |
| 36 | 123 | 0.12% | – | Software (5.4×) | |
| 37 | 113 | 0.11% | −1 | 201–1,000 employees (3.1×) | |
| 38 | 111 | 0.11% | – | 201–1,000 employees (2.2×) | |
| 39 | 110 | 0.10% | −1 | Video Games (198×) | |
| 40 | 106 | 0.10% | +3 | 201–1,000 employees (3.6×) | |
| 41 | 89 | <0.1% | +8 | 201–1,000 employees (3.4×) | |
| 42 | 87 | <0.1% | +1 | – | |
| 43 | 77 | <0.1% | +1 | Software (6.4×) | |
| 44 | 76 | <0.1% | – | Software (9.0×) | |
| 45 | 65 | <0.1% | – | – | |
| 46 | 64 | <0.1% | – | – | |
| 47 | 59 | <0.1% | – | – | |
| 48 | 42 | <0.1% | +2 | – | |
| 49 | 40 | <0.1% | – | – | |
| 50 | 33 | <0.1% | +3 | – | |
| 51 | 28 | <0.1% | – | – | |
| 52 | 24 | <0.1% | −1 | – | |
| 53 | 19 | <0.1% | – | – | |
| 54 | 17 | <0.1% | – | – | |
| 55 | 5 | <0.1% | – | – | |
| 56 | 5 | <0.1% | – | – |
“Most popular with” is the industry or company size where the tool is most over-represented compared with all companies we've scanned. Starts and stops compare two scans done the same way.
Who's gaining and losing customers
- Atlassian: 34 started, 4 stopped in the last 30 days
- Cisco Intersight: 21 started in the last 30 days
- Loader.io: 18 started in the last 30 days
- ExternalDNS: 15 started in the last 30 days
- Cursor: 11 started in the last 30 days
- HubSpot App Developer: 8 started in the last 30 days
How to compare developer tools
- Seat pricing versus usage pricing, especially for AI tools.
- Security review: code access, data retention and self-hosting options.
- Fit with your existing editor, repository and CI.
How we find developer tools
Developer tools show up in domain-verification TXT records, in internal hostnames from certificate logs and on subprocessor lists.
Every company on a tool's page links to the record behind the match. DNS is rechecked weekly and websites monthly, so tools a company stops using drop off the list.
Also tracked, no confirmed customers yet
Pierre
Dev Tools FAQ
What are the most popular developer tools?
As of October 2026, the most popular developer tools by number of companies using them are Atlassian (64,105 companies), Cursor (6,035 companies) and TeamViewer (4,314 companies), according to runsonwhat. Atlassian alone accounts for 61% of the 104,926 Dev Tools matches runsonwhat has, and the top three together for 71%. 56 developer tools have at least one confirmed customer.
Atlassian vs Cursor: which is more popular?
Atlassian is more popular: 64,105 companies show public evidence of Atlassian, against 6,035 for Cursor (11× as many), according to runsonwhat (October 2026). TeamViewer is third with 4,314.
Which developer tools do small businesses use most?
Among companies with up to 50 employees, the most used developer tools are Atlassian (18,018 companies), HubSpot App Developer (1,306 companies) and Cursor (1,183 companies), according to runsonwhat (October 2026). The counts cover companies with a known headcount; see each tool's page for the full size breakdown.
Which developer tools do large companies use most?
Among companies with more than 1,000 employees, the most used developer tools are Atlassian (7,150 companies), TeamViewer (1,252 companies) and Docker (947 companies), according to runsonwhat (October 2026). Large companies often run more than one tool in a category, so the same company can count for several.
Which developer tools are most popular in the United States?
In the United States, the most used developer tools are Atlassian (19,078 companies), Cursor (2,550 companies) and Docker (1,313 companies), based on companies runsonwhat has located there (October 2026). Atlassian has 54% of the Dev Tools matches among companies based in the United States.
Which developer tools are most popular in the United Kingdom?
In the United Kingdom, the most used developer tools are Atlassian (4,436 companies), Cursor (323 companies) and TeamViewer (292 companies), based on companies runsonwhat has located there (October 2026). Atlassian has 63% of the Dev Tools matches among companies based in the United Kingdom.
Which developer tools do software companies use?
Software is the industry with the most Dev Tools matches, and its companies use Atlassian (7,568 companies), Cursor (1,111 companies) and HubSpot App Developer (615 companies) most, according to runsonwhat (October 2026). Each tool's page breaks its customers down by industry, so you can check where a tool over-indexes.
Which developer tools are companies adopting right now?
In the 30 days to October 2026, the most new adoptions runsonwhat recorded were for Atlassian (34 companies), Cisco Intersight (21 companies) and Loader.io (18 companies). A start is counted when a recheck finds a tool that the previous check of the same company, done the same way, did not.
Which developer tools are losing customers?
In the 30 days to October 2026, more companies stopped than started using Flexera (2 stopped, 0 started), according to runsonwhat's rechecks. Short-term moves are small next to each tool's total, so read them as signals rather than trends.
How does runsonwhat rank developer tools?
runsonwhat counts the companies where a public record shows each tool in use and ranks by that count. Developer tools show up in domain-verification TXT records, in internal hostnames from certificate logs and on subprocessor lists. A company counts only when a direct record backs it up. The full method is at https://www.runsonwhat.com/methodology.