15 Online Internships with Certificates for High School Students

Internships are one of the most effective ways to explore your interests while you’re still in high school. They give you early exposure to real-world work, help you build practical skills, and let you connect with mentors and professionals, all without the high cost of many traditional summer programs. Today, there are many online internships for students with certificate high school options offered by universities, research organizations, and global platforms, making them more accessible than ever. These virtual opportunities allow you to work from anywhere, collaborate with peers worldwide, and still gain meaningful experience, with certificates to show as proof of your hard work.

You also gain access to mentorship from professionals or university students, which can give you insights into career paths and academic choices. Many online internships include collaborative projects, presentations, or portfolio work, all of which strengthen your college applications. Admissions officers often look for initiative and depth of interest; an internship clearly demonstrates both.

If you’re looking for online internships that are paid, you can find a list here!

Why should I do an online internship in high school?

An online internship during high school gives you more than just a certificate; it builds real academic and career momentum. You get to apply what you learn in school to real-world projects, whether that’s coding an app, analyzing business strategies, or working on research problems. These experiences help you develop tangible skills like communication, critical thinking, and problem-solving.

If you already have an interest in a specific field, whether it’s AI, business, medicine, or law, internships can help you test that interest in a structured way. To make your search easier, we’ve curated a list of the top 15 online internships with certificates for high school students, focusing on programs that are active, credible, and offer strong learning outcomes.

1. Stanford Center for Artificial Intelligence in Medicine and Imaging Summer Research Internship

Location: Virtual
Cost: $2,400 +  $45 application fee; limited need-based financial aid available
Acceptance rate/cohort size: Highly selective; ~50 students per year
Dates: Session A: June 15–26; Session B: July 6–17
Application Deadline: February 20
Eligibility: U.S. high school students entering grades 9–12 in the fall; (14+) with solid math or computer programming skills, or those who have worked on a healthcare project

This two-week virtual internship introduces you to how artificial intelligence is used in healthcare and medical research. You attend lectures led by Stanford researchers and clinicians, covering topics like machine learning, medical imaging, and responsible AI. You also work in small teams on a mentored research project, where you explore real clinical datasets and develop problem-solving skills. The program emphasizes collaboration, critical thinking, and understanding real-world applications of AI in medicine. Guest speakers from academia, industry, and government share insights into careers and current innovations. If you complete the program with full participation, you receive a certificate of completion.

2. The Intern Group – Virtual Internship Program

Location: Online; completed remotely from anywhere in the world
Cost: $1,990 program fee for full programs starting August to mid-May, or $2,490 for full programs starting late May to July; financing and financial aid options are available
Acceptance rate/cohort size: Selective; over 150 nationalities and more than 15,000 alumni
Dates: Year-round enrollment with start dates roughly every two weeks; durations from 4 to 24 weeks
Application Deadline: Rolling admissions
Eligibility: High school students aged 16 or older for the virtual program

Through The Intern Group's Virtual Internship Program, you complete a guaranteed remote placement with one of 3,000+ partner organizations. You can work in business, marketing, entrepreneurship, or the non-profit sector, collaborating online with a manager or mentor across time zones. Day to day, you contribute to real tasks such as social media and content creation, branding and campaign support, market or fundraising research, and team projects. Alongside your placement, you complete Career Advancement Training covering communication, leadership, and problem-solving, join virtual networking events, and meet one-on-one with a career coach. You build remote-work, digital communication, and self-management skills increasingly valued by employers, while strengthening your university and future job applications.

3. STEM Enhancement in Earth Science (SEES) Summer Intern Program

Location: Hybrid (remote + on-site at University of Texas at Austin Center for Space Research, Texas, USA)
Stipend: None
Acceptance rate/cohort size: Highly competitive; approximately 260 total interns
Dates: Distance Learning Modules: May 15 – July; Virtual Project Work: June – July 21; On-site Internship: July 5 – 18; Virtual Science Symposium: July 20 – 21
Application Deadline: February 22
Eligibility: U.S. citizens; at least 16 years of age by July 1; current high school sophomores or juniors (10th or 11th grade); strong academic record (typically a minimum 3.0 GPA)

The STEM Enhancement in Earth Science (SEES) Summer Intern Program is a nationally competitive high school research internship funded by NASA and hosted by the University of Texas at Austin's Center for Space Research and the Texas Space Grant Consortium. It combines virtual learning with optional on-site research, focusing on Earth and space science using real mission data. You complete preparatory modules in topics like Earth science and Python before working with mentors on project-based research. Projects span areas such as remote sensing, astronomy, aerospace, and planetary science, often aligned with NASA missions. During the program, you analyze data, contribute to research discussions, and build technical and communication skills.

4. Stanford Clinical Summer Internship – Virtual Session

Location: Online (live via Zoom)
Cost/Stipend: $4,580 + $95 application fee; application fee waivers available for qualifying U.S. citizens and permanent residents with household income under $80,000
Acceptance rate/cohort size: Highly selective; limited-enrollment cohort
Dates: July 27 – August 7
Application Deadline: February 9
Eligibility: Rising high school juniors and seniors; age 16 or older by the session start date

In this program, you join an online internship for two weeks of live, interactive medical training led by Stanford faculty, medical students, and physician assistant students over Zoom. You learn to take patient histories, perform physical exams, build differential diagnoses, and reason critically through complex cases across a range of specialties. Hands-on skills sessions come to life at home using a provided stethoscope and supplies shipped to your residence, alongside guided activities such as virtual organ dissection. It blends interactive lectures with small-group breakouts and an inside look at the path into medicine. You finish with a certificate of completion recognizing your participation.

5. Center for California Studies, Sacramento State / The LegiSchool Project – LegiSchool Civics Virtual Institute

Location: Online
Stipend: Paid, exact amount not specified
Acceptance rate/cohort size: Selective; limited cohort size
Dates: June 22 – July 17
Application Deadline: May 31
Eligibility: California high school sophomores, juniors, and seniors

In this program, you join a select group of California high school students for an intensive four-week online program that explores how the state government works across its three branches. You meet virtually on Monday, Wednesday, and Friday afternoons throughout the institute. Activities include online discussions about state agencies and the judicial branch, research projects focused on important California policy issues, and speaker sessions and professional workshops led by branch experts themselves. Through this work, you develop research, public-speaking, and leadership skills while gaining firsthand insight into public service and the political process.

6. Almac Group – Work Experience Hub

Location: Online (virtual hub; Almac Group is headquartered in Craigavon, Northern Ireland)
Stipend: None
Acceptance rate/cohort size: Open-access registration; no fixed cohort
Dates: Self-paced and available on demand year-round
Application Deadline: Rolling registration
Eligibility: Aged 15–18 (academic years 12–14); interested in learning about careers in the pharmaceutical industry

This program gives you a virtual, self-paced introduction to careers across one of the world's leading contract pharmaceutical development and manufacturing organisations. You explore a library of day-in-the-life videos, staff presentations, and interactive activities that explain what scientists, engineers, IT, and business professionals actually do day to day. You learn the qualifications and skills different roles require, attend live Q&A sessions with Almac staff, and identify the transferable skills that support a successful career. Working through an online course, you build digital literacy and critical-thinking skills while mapping possible pathways both inside and outside the laboratory. On completion, you receive a certificate recognising your engagement with the programme.

7. Aspiring Scientists Summer Internship Program (ASSIP)

Location: Hybrid (remote + in-person at George Mason University, Virginia, USA)
Cost: $1,299 tuition + $25 application fee; waivers are available
Acceptance rate/cohort size: Highly Competitive; approximately 290–300 interns across various labs and disciplines
Dates: June 18 – August 12
Application Deadline: February 15
Eligibility: High school students; minimum age 15 (remote/computer labs) or 16 (wet labs) by June 18

This 8-week research internship pairs you with a faculty mentor to work on an independent or team-based STEM research project. You gain hands-on experience using advanced tools and methods across fields such as biology, computer science, engineering, environmental science, and data science. The program includes full-time research work along with discussions on STEM careers and scientific communication. You also develop writing and presentation skills while working toward a final research output. Some students may earn college credit and have opportunities to contribute to publications or conferences. The program concludes with a poster session where you present your work.

8. American Anthropological Association – Virtual High School Internship

Location: Online (virtual internship based out of the American Anthropological Association, Arlington, Virginia)
Cost/Stipend: None
Acceptance rate/cohort size: Selective; ~3 interns
Dates: June 1–26
Application Deadline: March 13
Eligibility: High school students interested in anthropological research

In this program, you join a four-week virtual internship where you explore contemporary anthropological scholarship and learn to communicate it for younger audiences. Working roughly 10 hours a week, you complete a primary project that involves selecting a peer-reviewed article from the AnthroSource journals, examining how the research was constructed, and adapting it for students in grades 6–12. A rotating secondary project typically focuses on accessibility or public education. You translate dense findings into accessible formats such as research summaries and visual summaries designed in Canva, guided by mentors, with finished work that may appear on the Understanding Migration platform.

9. Yale Center for Clinical Investigation – Exposures Program / Virtual Student Research Internship

Location: Online (remote)
Cost/Stipend: None
Acceptance rate/cohort size: Highly selective; ~96 interns
Dates: July 6–31
Application Deadline: April 4
Eligibility: High school students; at least 15 years of age before the internship start

In this program, you join a four-week, fully remote internship exploring clinical and translational science, with a focus on technology, mobile apps, patient engagement, disparities, and data science in health care. Guided by an assigned mentor, you develop an independent research project or participate in a group project and present your results at a virtual YCCI Research Meeting attended by institutional and community leaders. You attend weekly seminars, prepare by reading assigned journal articles, and take part in a Clinical Research Brown Bag Roundtable Lunch, Clinical Research Journal Club, and Clinical Research Meeting. Through these activities, you build research literacy, scientific communication, and project-development skills.

10. George Mason University, Schar School / College of Science – NASA Data Science Analysis and Scholarly Research Paper Writing 

Location: Online (hybrid format, primarily virtual, with optional in-person sessions at the George Mason University Fairfax Campus in Virginia)
Cost/Stipend: Program fee applies, with the exact amount provided on request by emailing execed@gmu.edu; need-based scholarships are available, and research awards of up to $2,000 are granted for outstanding performance
Acceptance rate/cohort size: Selective; cohort capped at 50 students
Dates: June 13 – August 29
Application Deadline: Rolling admissions
Eligibility: All high school students

In this program, you join a virtual NASA-focused research internship where you analyze real space-mission data and produce a professional-quality scholarly paper under George Mason faculty mentorship. Working with NASA TESS mission exoplanet candidates and James Webb Space Telescope datasets, you collect follow-up observations, validate a unique exoplanet candidate, and synthesize your findings into original research. You learn observational astronomy, quantitative research, and statistical inference while applying tools such as Python, Jupyter notebooks, GitHub, AstroImageJ, and FITS astronomy data files. You also operate Mason's 32-inch telescope remotely or in person during group observing nights and refine your paper across a dedicated four-week writing period. Top performers are selected to present at a campus conference and compete for awards.

11. GVI Virtual Internship Program - Wildlife Conservation 

Location: Fully remote (global participation)
Cost: Varies depending on program duration (typically 2 to 12 weeks); program fee required
Acceptance rate/cohort size: Selective; typically consists of individual placements or small groups with 1-on-1 mentorship
Dates: Year-round (Flexible, rolling start dates)
Application Deadline: Rolling admissions
Eligibility: High school students (ages 15+); access to a computer and internet; no prior experience required

This program is a remote opportunity that allows you to tackle real-world sustainability challenges directly from your home. During the course, you will dive into essential topics like habitat protection, biodiversity preservation, and climate change mitigation. To build your portfolio, you will complete practical activities such as attending expert-led masterclasses, analyzing wildlife conservation footage, and designing targeted fundraising campaigns for international NGOs. What makes this program truly unique is its entirely customizable schedule, paired with daily one-on-one mentorship and the opportunity to earn a professional recommendation letter. By graduation, you will have mastered highly transferable skills, including data analysis, project management, and remote cross-cultural collaboration, to successfully kickstart your conservation career.

12. Changing The Present – Virtual High School Internship 

Location: Online (entirely virtual)
Cost/Stipend: None
Acceptance rate/cohort size: Competitive; no published cohort size
Dates: Flexible, self-scheduled hours offered during both the school year and the summer
Application Deadline: Rolling basis
Eligibility: High school students; strong academic record; commitment of at least three hours per week

In this program, you pick a cause, ethnic group, religious community, or country you care about and build awareness of the organization among classmates, student groups, teachers, and local nonprofits. You run this outreach through social media, email, and in-person conversations, drawing on the message templates, downloadable flyers, digital graphics, and step-by-step instructions provided. You strengthen skills in communication, digital marketing, leadership, and networking while connecting with interns nationwide in an online community. The unpaid role may qualify for academic credit or community service hours.

13. Diabetes Virtual Camp & American Diabetes Association – Virtual Camp

Location: Online (Zoom); organized from Boston, Massachusetts
Cost/Stipend: None
Acceptance rate/cohort size: Open registration; ~984 interns
Dates: 12 days in August
Application Deadline: Late July
Eligibility: High school, college, graduate, and professional students as well as clinicians, researchers, and other healthcare professionals worldwide

In this camp, you join a free, two-week online research program that connects high school students with leading diabetes scientists and physicians through live Zoom sessions. You attend expert-led talks on current diabetes research and treatment, take part in pre-session and post-session Q&A periods, join open-mic discussion forums, and complete post-session tasks that reinforce each topic. You explore biomedical research approaches, the biology of type 1 and type 2 diabetes, obesity and metabolism, and academic career paths in medicine and science. You learn directly from faculty at reputable universities and earn a certificate after completing the full program. The experience builds foundational knowledge and professional networking in diabetes research.

14. Build a Water Project – Virtual Internship

Location: Online (fully virtual)
Cost/Stipend: None
Acceptance rate/cohort size: Open enrolment; no fixed cohort size
Dates: Six weeks; no fixed start date
Application Deadline: Rolling basis 
Eligibility: Applicants of all ages; open to all experience levels

In this program, you join a fully virtual fundraising internship focused on expanding access to clean water in developing nations. Over a six-week term, you take on a personal fundraising goal of raising at least $100, which counts toward 15 or more community service hours. You develop practical skills in fundraising, outreach, and donor communication while learning how grassroots nonprofit campaigns translate into real infrastructure. You connect with other like-minded youth, pursue leadership opportunities, and can earn intern spotlights and awards for your contributions. Your work contributes to a track record that has funded the building and repair of 85 wells in Bangladesh, reaching more than 1,000 people.

15. University of Washington / Harborview Injury Prevention & Research Center – INSIGHT High School Program

Location: Online
Cost: $2,200; limited scholarships are available
Acceptance rate/cohort size: Selective; cohort size not officially published
Dates: July 6–31
Application Deadline: May 18
Eligibility: High school students entering grades 10-12 or recently graduated

In this program, you spend four weeks online exploring public health, biomedical research, and medicine through the lens of injury and violence prevention. Working collaboratively, you complete the TRREK capstone project, mapping the safest walking route to trauma care after a major earthquake while learning field research data collection, analysis, and data visualization. You join injury-prevention seminars, a drowning-prevention communication workshop, resume and public-speaking skill sessions, and panels with INSIGHT undergraduates, healthcare professionals, and community health organizations. You sharpen critical thinking and presentation abilities, then present your findings to physicians, researchers, and college students at an online research symposium on the final day.

One more option – Ladder Internship Program

Location: Remote
Cost/Stipend: Cost varies depending on the program type; 100 % financial aid is available / No stipend
Acceptance rate/cohort size: 10–25%; 70–100 students per cohort
Dates: Multiple cohorts throughout the year, including Spring, Summer, Fall, and Winter
Application Deadline: Varies depending on the cohort; Spring (January), Summer (May), Fall (September) and Winter (November)
Eligibility: High school students able to commit 10–20 hours/week for 8–12 weeks

The Ladder Internship Program is a virtual, eight-week initiative founded by Harvard entrepreneurs that connects you with fast-growing startups and NGOs. You can explore topics like artificial intelligence, finance, health tech, engineering, and media. During your internship, you will set project deliverables, attend weekly mentorship meetings with your startup manager, build a real-world project like a market report or coded prototype, and present your final work. You will also receive guidance from a dedicated Ladder Coach. The program uniquely features a completely remote structure, direct access to top-tier founders, and personalized company matching. Ultimately, you will develop practical industry expertise, project management capabilities, and professional communication skills to thrive in collaborative professional settings.

Flag: the title and intro promise 15 online internships, but only 16 numbered entries appear, including Ladder. Worth a quick recount before publishing, since one extra entry made it onto the page.

This list spans an unusually wide cost range, from completely free to over $4,500, with several certificate-bearing options that don't require any payment at all, worth highlighting clearly for cost-conscious students. FAQs first, then Key Takeaways, no em dashes, no bolding in content.

Questions Students Often Ask About These Programs

1. Several of these programs cost over $2,000 (Stanford AIMI, Stanford Clinical Summer Internship, INSIGHT), while others are completely free and still offer a certificate. Is the paid experience meaningfully different?

The paid programs generally offer something specific that justifies the cost, most often live, real-time faculty instruction and hands-on equipment shipped to your home. Stanford's Clinical Summer Internship, for instance, ships you a stethoscope and medical supplies so you can practice physical exam skills live over Zoom with Stanford faculty and medical students, which is a genuinely unique experience. The free options, like the Yale Exposures Program, American Anthropological Association internship, and SEES, are structured more around independent or mentor-guided research and self-paced learning, and still produce a real research output and a certificate, just without the live, equipment-supported instruction. If budget is a constraint, the free options on this list are not lesser experiences; they simply prioritise mentorship and independent work over live training sessions.

2. A few programs here, like Changing The Present and Build a Water Project, are framed as advocacy or fundraising work rather than traditional research or shadowing. Are these still valuable internships to list on a college application?

Yes, and they demonstrate a different but equally compelling set of skills: leadership, community organising, and direct social impact. Build a Water Project specifically has you set and meet a personal fundraising goal that contributes to a verifiable, ongoing track record of building and repairing wells in Bangladesh, giving you a concrete, measurable outcome to point to. Changing The Present similarly builds tangible marketing, outreach, and leadership experience that translates well to essays about civic engagement or social entrepreneurship. These are excellent complements to a more traditional research-based internship if you want to show a well-rounded profile that includes both academic rigor and direct community impact.

3. With so many research-focused options here (Yale, SEES, GMU NASA program, ASSIP), how do I figure out which one fits my specific interest within STEM?

It helps to think about the format and subject area together. If you're drawn to astronomy or space science specifically, George Mason's NASA Data Science program has you working directly with TESS exoplanet data and James Webb Space Telescope datasets, culminating in a publishable-quality paper. If your interest is closer to Earth science or environmental research, SEES is the strongest match, since it's built entirely around NASA Earth-science mission data and remote sensing. If you want broad flexibility across multiple STEM disciplines with a faculty mentor, ASSIP at George Mason lets you choose your specific field, spanning biology, computer science, engineering, and more. And if clinical or biomedical research is your focus, Yale's Exposures Program centers specifically on health technology, patient engagement, and data science in healthcare. Picking based on subject area first, then comparing cost and time commitment, is the most efficient way to narrow this list down.

Key Takeaways

This list covers 16 online internships with certificates for high school students, spanning highly specialized research programs like George Mason's NASA exoplanet research and Yale's clinical and translational science internship, alongside advocacy and fundraising-focused experiences like Build a Water Project and Changing The Present, and cost ranges from completely free to over $4,500 for Stanford's live clinical training program. Several of the free options, including SEES, the Yale Exposures Program, and the American Anthropological Association internship, still produce a genuine research output, a certificate, and direct faculty or mentor access, making cost a less reliable indicator of program depth than it might initially appear. For students who want a more flexible, business or startup-oriented alternative to the research-heavy programs that dominate this list, Ladder Internships remains the most adaptable option, matching students with real companies across AI, finance, health tech, and media rather than a structured academic research track.

Dhruva Bhat

Dhruva Bhat is one of the co-founders of Ladder, and a Harvard College graduate. Dhruva founded Ladder Internships as a DPhil candidate and Rhodes Scholar at Oxford University, with a vision to bridge the gap between ambitious students and real-world startup experiences.

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