By Quick answer: Which websites are best for getting certified online in 2027?
- Career certificates — Coursera hosts Google, IBM and Meta programmes, paid by subscription with financial aid.
- Vendor exams — Microsoft Learn and AWS Skill Builder offer free training; you pay only for the exam.
- Free and respected — Google Skillshop, HubSpot Academy, Harvard CS50, freeCodeCamp and Kaggle cost nothing.
- Professional bodies — PMI (project management) and Salesforce Trailhead (CRM) issue the credentials employers name in job posts.
Key takeaways
- The best website depends on the credential you need: go to the issuer's own platform whenever you can.
- Vendor platforms (Microsoft, AWS, Salesforce) give the training free and charge only for the proctored exam.
- Avoid sites that sell 'certificates' from unknown issuers with no assessment; they add nothing to a résumé.
Search for a certification and you'll find dozens of sites offering to certify you, many of them reselling courses or issuing certificates no employer recognises. The truth is simpler: the most credible place to get certified is almost always the issuer's own platform. This guide compares the ten websites that matter most in 2027, what each is genuinely good for, what it costs, and the flagship credential to start with on each.
The 10 certification websites at a glance
Each row shows the platform's flagship certification so you can compare like with like. Costs from official pages, checked 3 November 2026.
| # | Certification | Cost | Time | Prove it free |
|---|---|---|---|---|
| 1 | Google Data Analytics Professional CertificateGoogle / Coursera | $49/mo Coursera plan1 | 6 months at 10 hours a week | Free test |
| 2 | Microsoft Learn Free AI & Cloud TrainingMicrosoft | Free2 | Self-paced | Free test |
| 3 | AWS Certified Cloud PractitionerAmazon Web Services | $1003 | 90 minutes, 65 questions | Free test |
| 4 | CAPM – Certified Associate in Project ManagementPMI | $225 PMI members / $300 non-members4 | 180 minutes, 150 questions | Free test |
| 5 | Salesforce Certified AdministratorSalesforce | Exam fee on Trailhead5 | Self-paced | Free test |
| 6 | Google Ads & Google Analytics Certifications (Skillshop)Google Skillshop | Free6 | Self-paced | Free test |
| 7 | HubSpot Inbound Marketing CertificationHubSpot Academy | Free7 | Self-paced | Free test |
| 8 | CS50: Introduction to Computer ScienceHarvard University | Free8 | Self-paced | Free test |
| 9 | freeCodeCamp CertificationsfreeCodeCamp | Free9 | Self-paced | Free test |
| 10 | Kaggle Learn Micro-Courses (ML, Python, SQL)Kaggle (Google) | Free10 | Short micro-courses, a few hours each | Free test |
Prove it free before you pay for an exam
Take the free test first. Pay for an exam only when you pass.
Every pick above has a matching free practice test on Science of Apps, one of the world's largest libraries of free certification tests (1,200+). Check your level before you pay for an exam, or add a verifiable credential to LinkedIn while you study. (Disclosure: we publish these tests; the certifications above earn us nothing.)
- Statistics for Data Analysts CertificationPractise for Google Data Analytics Professional Certificate before you pay.Start free test →
- Microsoft Azure Fundamentals CertificationPractise for Microsoft Learn Free AI & Cloud Training before you pay.Start free test →
- AWS Cloud Practitioner Practice ExamPractise for AWS Certified Cloud Practitioner before you pay.Start free test →
- CAPM Practice ExamPractise for CAPM – Certified Associate in Project Management before you pay.Start free test →
Each platform, and what it's best for
- CourseraGoogle Data Analytics Professional CertificateCareer certificates from Google, IBM and Meta$49/mo Coursera plan
- MicrosoftMicrosoft Learn Free AI & Cloud TrainingFree Microsoft training before an examFree
- AWSAWS Certified Cloud PractitionerCloud careers on AWS$100
Google Data Analytics Professional Certificate
- Cost
- $49/mo Coursera plan1
- Time
- 6 months at 10 hours a week
Coursera is the home of the Google, IBM and Meta career certificates, plus university courses. Its strength is structured, project-based programmes for career changers; the Google Data Analytics certificate is its most popular example. You pay through a subscription, so finishing faster costs less, and financial aid is available on request.
Best forcareer certificates from Google, IBM and Meta
Microsoft Learn Free AI & Cloud Training
- Cost
- Free2
Microsoft Learn is the best free training platform in tech. Every Azure, AI, data and Microsoft 365 certification has a free learning path here, with sandboxes for practice. You pay only when you book the exam, priced by country. It's the right starting point for anyone in a Microsoft-based company.
Best forfree Microsoft training before an exam
AWS Certified Cloud Practitioner
- Cost
- $1003
- Format
- 90 minutes, 65 questions
AWS Skill Builder offers free digital training for every AWS certification, with paid labs for those who want more. The certifications themselves are among the most recognised in tech. Start with Cloud Practitioner, then move to Solutions Architect – Associate when you're comfortable.
Best forcloud careers on AWS
CAPM – Certified Associate in Project Management
- Cost
- $225 PMI members / $300 non-members4
- Format
- 180 minutes, 150 questions
- Entry
- Secondary diploma plus 23 hours of project management education
PMI is the professional body behind the PMP and CAPM, and its own site is where you apply, book and maintain them. It isn't a course marketplace; it's the issuer. Members pay less for exams, which usually covers the membership fee if you're taking one.
Best forproject management credentials
Salesforce Certified Administrator
- Cost
- Exam fee on Trailhead5
Salesforce Trailhead is a free, gamified learning platform with hands-on practice environments, leading to Salesforce's paid certifications. It's one of the few places where the training is excellent and entirely free. The Administrator certification is the most common entry point into the Salesforce job market.
Best forCRM careers, with free learning
Google Ads & Google Analytics Certifications (Skillshop)
- Cost
- Free6
Google Skillshop provides free training and free certifications for Google Ads, Analytics and other Google products. For marketers it's essential: agencies often expect these credentials. Certificates expire periodically, which keeps them current with Google's product changes.
Best forfree Google Ads and Analytics certifications
HubSpot Inbound Marketing Certification
- Cost
- Free7
HubSpot Academy offers free courses and certifications in inbound marketing, content, sales and service. They're short, practical and recognised in marketing teams. They're best treated as learning plus a light credential rather than a heavyweight qualification.
Best forfree marketing and sales certifications
CS50: Introduction to Computer Science
- Cost
- Free8
Harvard's CS50 courses are free online, with a free certificate for completing them. They're demanding, which is why they're respected. CS50x is the best free introduction to computer science anywhere, and CS50's AI and Python courses follow on naturally.
Best forfree, rigorous computer science
freeCodeCamp Certifications
- Cost
- Free9
freeCodeCamp is a nonprofit offering free, project-based certifications in web development, JavaScript and data analysis. Each certification requires building projects that pass automated tests, so you finish with a portfolio. It's the best free starting point for web development.
Best forfree web development with a portfolio
Kaggle Learn Micro-Courses (ML, Python, SQL)
- Cost
- Free10
- Time
- Short micro-courses, a few hours each
Kaggle, owned by Google, offers short, free micro-courses in Python, SQL and machine learning, each with a certificate, plus real datasets and competitions. It's the best place to practise data skills hands-on and to build a public portfolio of notebooks.
Best forfree, hands-on data and ML practice
How to tell a credible certification website from a certificate mill
A credible platform either issues the credential itself or partners with the organisation that does. Use these checks before paying anyone.
- Who issues the certificate? — it should be the company or body whose name employers know.
- Is there an assessment? — a proctored exam or graded projects; not just watching videos.
- Can employers verify it? — a credential ID, a public badge or a verification page.
- Is the price clear? — beware 'free course, paid certificate' surprises and auto-renewing trials.
Which certification website should you use?
| If you want… | Use |
|---|---|
| A career change into data, UX, IT or marketing | Coursera (Google, IBM, Meta certificates) |
| Cloud or AI exams | Microsoft Learn, AWS Skill Builder |
| Project management credentials | PMI |
| A CRM career | Salesforce Trailhead |
| Free marketing certifications | Google Skillshop, HubSpot Academy |
| Free coding and computer science | Harvard CS50, freeCodeCamp |
| Free data and ML practice | Kaggle |
Table: Which certification website to use for which goal
How we ranked these picks
We compared platforms on four points: whether they issue or partner with a recognised issuer, whether credentials are assessed and verifiable, how much they cost, and how well their training prepares you. Each platform is represented by its flagship certification so costs compare like for like. Details were checked on official pages on 3 November 2026.
Frequently asked questions
What is the best website for online certifications?
It depends on the credential. Coursera is best for Google, IBM and Meta career certificates; Microsoft Learn and AWS Skill Builder for cloud and AI exams; PMI for project management; and Salesforce Trailhead for CRM. For free certifications, Google Skillshop, HubSpot Academy, Harvard CS50, freeCodeCamp and Kaggle are the strongest.
Is Coursera worth it for certifications in 2027?
Yes, for structured career certificates from Google, IBM and Meta, and for university courses. You pay a subscription, so finishing faster costs less, and financial aid is available. For vendor exams like AWS or Microsoft, use the vendor's own free training instead and pay only for the exam.
Which certification websites are free?
Microsoft Learn, AWS Skill Builder's digital training, Salesforce Trailhead, Google Skillshop, HubSpot Academy, Harvard's CS50 courses, freeCodeCamp and Kaggle all offer free learning. Skillshop, HubSpot, CS50, freeCodeCamp and Kaggle also give free certificates; Microsoft, AWS and Salesforce charge for their exams.
How do I know if a certification website is legitimate?
Check who issues the certificate, whether there's a real assessment, whether employers can verify it with an ID or badge, and whether the price is clear. Legitimate credentials come from recognised companies or professional bodies. Be wary of sites selling certificates from organisations no employer has heard of.
Is Science of Apps a certification website?
Yes. Science of Apps offers 1,200+ free, test-based certifications graded on its server, with a certificate employers can verify by its ID, making it one of the largest libraries of free certification tests online. They're Science of Apps' own assessments, not accredited qualifications, so pair them with industry certifications where jobs require them.
Sources
- Google — Google Data Analytics Professional Certificate, official page (checked 3 Nov 2026)
- Microsoft — Microsoft Learn Free AI & Cloud Training, official page (checked 3 Nov 2026)
- Amazon Web Services — AWS Certified Cloud Practitioner, official page (checked 3 Nov 2026)
- PMI — CAPM – Certified Associate in Project Management, official page (checked 3 Nov 2026)
- Salesforce — Salesforce Certified Administrator, official page (checked 3 Nov 2026)
- Google Skillshop — Google Ads & Google Analytics Certifications (Skillshop), official page (checked 3 Nov 2026)
- HubSpot Academy — HubSpot Inbound Marketing Certification, official page (checked 3 Nov 2026)
- Harvard University — CS50: Introduction to Computer Science, official page (checked 3 Nov 2026)
- freeCodeCamp — freeCodeCamp Certifications, official page (checked 3 Nov 2026)
- Kaggle (Google) — Kaggle Learn Micro-Courses (ML, Python, SQL), official page (checked 3 Nov 2026)
- Checked November 4, 2026. Figures that change — fees, salaries, prices — are reviewed every six months; if something is out of date, tell us.
Where to go from here
- The best online certifications of 2027 — the full top 10 across every field
- Best AI Certifications of 2027: 10 Ranked by Career Impact — related guide
- Science of Apps free certification catalogue — 1,200+ free tests
- Career guides by Science of Apps for 2027The best certification providers and platforms of 2027: who to learn from, and who to get certified byThe best certification providers of 2027: Google, Microsoft, AWS, CompTIA, PMI, ISC2, Salesforce, Harvard CS50, freeCodeCamp and Kaggle, compared.
- Career guides by Science of Apps for 2027Free online certifications in 2027: ten that are genuinely free, from issuers employers have heard of10 free online certifications for 2027 with no hidden paywall: Harvard CS50, HubSpot, Google Skillshop, Kaggle, Elements of AI and more, with direct links.
- Career guides by Science of Apps for 2027The best AI courses of 2027: ten online courses that actually teach you AI, free and paidThe 10 best AI courses of 2027 to learn online: Andrew Ng's Machine Learning, Harvard CS50 AI, Google AI Essentials, Kaggle and more, with time and cost.
- Career guides by Science of Apps for 2027Coursera vs edX and Udemy in 2027: which should you choose?Coursera vs edX vs Udemy certificates in 2027: partners, certificate types, pricing and which platform suits your goal.
- Career guides by Science of Apps for 2027The best certifications for $100 or less in 2027: nine credible picks, several freeThe best certifications for $100 or less in 2027: AWS Cloud Practitioner, AWS AI Practitioner, GenAI Leader ($99), Google Skillshop, HubSpot, Kaggle and more.
- Career guides by Science of Apps for 2027The best AI certifications of 2027: ten ranked by what they do for your career, from first exam to AI engineerThe 10 best AI certifications of 2027, ranked by career impact: AWS AI Practitioner, Azure AI-102, Google's AI exams and more, with costs and enrol links.
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