Stack Overflow Developer Survey 2025
ODbL 1.0. Self-reported salary observations at country and role level. Basis for most country/role medians. Self-reported, not advertised pay.
IT-SALARIES.COM
Data sources
The sources behind the published figures and the comparisons, with their legal status and publishing rules.
Last updated: 9 November 2026. This page lists the sources behind the current pilot, the sources approved but not yet connected, and the sources we do not use.
Current status: Only country/role groups that meet the 30-observation threshold are published; pages below the threshold are not generated. The current numbers of observations and groups are shown on the homepage.
Primary sources for published pages
These sources drive the country/role medians shown on published pages.
Visit
Eurostat Structure of Earnings Survey 2022
Official statistics. Official country-level observations for ISCO occupational groups. Used as an official context and comparison baseline.
JobTech Development (Arbetsförmedlingen, Sweden)
CC0. Swedish IT job ads with city, role, and some salary data. Basis for the Swedish job and salary data.
Official baselines in the database
These official sources are implemented and stored in the database. Their current samples are below the 30-observation publishing threshold, so they serve as context rather than primary page medians.
Nomis / ONS Annual Survey of Hours and Earnings
UK · Open Government Licence. Official UK country-level earnings; occupation detail is not exposed through the Nomis API.
CBS StatLine
Netherlands · CBS open data. Official Dutch hourly earnings for five ICT occupation groups.
Statistik Austria Open Data
Austria · CC BY 4.0. SES 2022 gross hourly earnings for ICT professionals.
Destatis GENESIS
Germany · DL-DE BY 2.0. Official German earnings data; API account and table ID required.
ILOSTAT
International · CC BY 4.0. Country-level monthly earnings for ISCO 2 professionals.
OECD
International · attribution. Country-level average wages in USD PPP as context.
Under review / permission required
These sources will be activated only after a documented review of terms, robots.txt, licence, and database rights.
- Bundesagentur für Arbeit Jobsuche API (DE)
- Reed (UK)
- Landing.Jobs (PT/EU)
- Ashby, Greenhouse, Lever, Recruitee, Workable, SmartRecruiters (ATS)
- EURES, NAV Arbeidsplassen, Entgeltatlas, JustJoin.it, NoFluffJobs, DevITjobs
Not used
- Adzuna — commercial use and derived salary data require a paid licence.
- LinkedIn, Glassdoor, StepStone, Indeed — their terms prohibit automated collection.
Publishing rules
- At least 30 observations per published page.
- At least one approved source; source mix and sample size are disclosed.
- No individual person or employer data; aggregate values only.
- Pages below the threshold are not published.
- Advertised pay is not the same as actual pay.