There are thousands of free courses online, and most of them are never mentioned in a job advert. So instead of listing the usual suspects, we started from the other end: what do UK employers actually ask for? We looked at the 379,128 live job adverts on CareerAlert on 19 October 2026 and pulled out the certificates, tickets and skills that come up again and again. Then we matched each one to a free course that leads to it.
The data behind this page
| What | Figure |
|---|---|
| Source | Live job adverts on CareerAlert, 19 October 2026 |
| Adverts in the snapshot | 379,128 |
| Largest advertising sectors | Engineering (24,457), Construction (15,383), Education (14,669), Logistics and Warehousing (6,278), IT (5,929), Social Care (5,664) |
| Method | Requirements read from adverts in each sector; courses listed only where they are free to the learner in the UK and lead to the named requirement |
1. Care Certificate and safeguarding (care and support work)
With 2,696 care assistant and 3,899 support worker adverts live, care is the single biggest sector hiring people without experience. Adverts ask for the Care Certificate (usually completed in your first 12 weeks, paid for by the employer), plus safeguarding, moving and handling, and basic life support. Skills for Care publishes the Care Certificate standards free, and most councils and NHS trusts run free e-learning for safeguarding and infection control that you can finish before you apply. Having them done already is a real advantage at interview.
2. CSCS card (construction)
Construction is the second-largest sector, with 15,383 adverts, and 330 of them put "CSCS" in the title. The card itself is not free (there is a test fee and card fee), but the preparation is: the CITB publishes the health, safety and environment test material, and free revision apps cover the full question bank. A labourer with a CSCS card advertises at a median of £16.75 an hour against £16.50 without, and it is the gateway to every site role above labourer.
3. Level 2 Food Hygiene (hospitality and catering)
Chef (4,503 adverts), cook, kitchen assistant and catering roles almost always want a Level 2 Food Hygiene certificate. Several councils and training providers offer it free online, and it takes an afternoon. Advertised pay in the sector: chefs at £16.00 an hour or £36,000 a year, cooks at £14.00 an hour.
4. Excel and Microsoft Office (admin and finance)
Administrator adverts (3,754 live) and almost every finance, payroll and HR advert ask for Excel. Microsoft's own Learn platform is free and covers Excel from beginner to pivot tables and lookups. Payroll roles advertise at £33,500 a year, bookkeeping at £33,750 and HR at £37,500, so this is one of the cheapest routes to a salaried office job.
5. Google and HubSpot certificates (marketing and sales)
Marketing adverts (2,760 live, median £38,750 a year) and business development roles (2,259 live, £45,000) regularly name Google Analytics, Google Ads and HubSpot. All three companies run free certification courses. They will not get you a senior role on their own, but for a junior or career-change application they show you have done the work.
6. Driver CPC and licence theory (driving)
Driving is the biggest single job family on CareerAlert. The HGV licence and Driver CPC cost money, but the theory, hazard perception and CPC case-study preparation can all be done free with the DVSA's own material. Our HGV guide covers the full route and what it costs; the advertised median is £18.05 an hour.
7. Coding foundations (IT)
IT is the fifth-largest sector (5,929 adverts), and developer adverts (4,886) advertise a median of £45,000 a year. Free, well-regarded starting points are freeCodeCamp, the Open University's OpenLearn computing courses, and Harvard's CS50. Be realistic: a free course gets you to the point of building a portfolio, and it is the portfolio that gets the interview.
8. Teaching support (education)
Education is the third-largest sector with 14,669 adverts, including 5,569 for teaching assistants. Schools ask for safeguarding training (free from most local authorities), paediatric first aid (often funded by the school) and, increasingly, a Level 2 or 3 supporting-teaching qualification, which some colleges fund for over-19s without one. Advertised pay: £14.61 an hour, or £22,998 a year term-time.
Courses that are free but rarely asked for
To save you time: in the adverts we read, almost nobody asks for a generic "leadership", "productivity" or "communication skills" certificate. They are fine to do, but they do not move an application. Spend the hours on something in the list above instead.
FAQ
Do employers take free online certificates seriously?
When the certificate is the one named in the advert (Care Certificate, Level 2 Food Hygiene, Google Ads), yes. When it is a general badge from a course platform, it rarely makes a difference. Match the course to the advert.
Which free course has the best payoff?
For speed, Level 2 Food Hygiene and safeguarding: an afternoon each, and they unlock thousands of care and catering adverts. For pay, CSCS preparation and Excel: construction and office roles advertise £33,000 to £43,000.
Can I get help with course fees?
Over-19s in England without a Level 3 qualification can often study one free under the adult skills offer, and many employers in care, driving and trades fund the licence or qualification once they have hired you. Ask at interview.
Next step
Pick the field, do the free course, then let the jobs come to you: set up a free daily job alert for the role and your town.
CareerAlert Editorial Team
Guides written by the CareerAlert team from the UK job adverts on the platform. Pay figures and counts come from live adverts and are refreshed when the guide is updated.
Looking for your next role?
We search UK jobs from across the web and email you new matches every morning. Free.
