As of October 8, 2026, Open Journal Systems is used by 22,783 websites in the TechLeads index: 89.6% of all DMS detections, the 1st most-used of 9 DMS technologies.
Quoting these numbers? Credit TechLeads with a link to this page.
Citation
TechLeads. "Open Journal Systems Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/open-journal-systems/market-shareHTML link
<a href="https://techleads.fyi/technology/open-journal-systems/market-share">Open Journal Systems market share (TechLeads data)</a>Websites using each technology in the TechLeads index, and its share of all DMS detections.
| # | Technology | Websites | Share |
|---|---|---|---|
| 1 | Open Journal Systems | 22,783 | 89.6% |
| 2 | Koha | 2,360 | 9.3% |
| 3 | Evernote | 151 | 0.59% |
| 4 | uKnowva | 68 | 0.27% |
Rows link to each competitor's market share page where one exists. The table lists the 4 most-used technologies; ranks are by website count.
In HTTP Archive's monthly crawl of public websites, Open Journal Systems was detected on 68,753 pages in September 2026, up 2.9% from a year earlier (peak: 78,993). HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other DMS technologies in HTTP Archive: Koha 5,071, Invenio 64.
Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.
See all 22,783 websites using Open Journal Systems or download the full list as a CSV for $29.
TechLeads scans public websites and detects Open Journal Systems from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Open Journal Systems's website count divided by the website counts of all DMS technologies we track; a site using two DMS tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.