15 Best Online Pre-college STEM Programs
Pre-college programs are a practical option for high school students looking to explore academic interests while building relevant skills without committing to full-time university costs. You gain exposure to practical concepts, industry insights, and mentorship through structured coursework and guided projects. You interact with instructors, researchers, and peers, which helps you understand academic pathways and build meaningful connections. These programs are often offered by leading colleges and organizations, making them accessible options for early academic exploration.
If you want to check out more STEM-related internships, check out here! Or if you’re more interested in seeing what sort of research opportunities are available to high schoolers, check out a list here!
Why should I participate in an online STEM pre-college program in high school?
Online STEM pre-college programs allow you to access rigorous academic experiences from top institutions without relocating or managing additional living costs. You build technical skills through coursework in fields such as computer science, engineering, and data science while working on structured projects. You gain exposure to competitive academic environments, especially in programs with selective admissions, which can strengthen your college applications. You interact with mentors and peers from diverse backgrounds, expanding your academic and professional network, and earn college credits. You also develop skills in critical thinking, problem-solving, and communication through collaborative and independent work.
We have narrowed down a list of the best 15 online STEM pre-college programs for high school students, prioritizing options with strong academic rigor and competitive acceptance rates.
Key takeaways
This list gathers 15 online pre-college programs for high schoolers spanning math, AI, physics, and neuroscience, with standout hosts including MIT, Stanford, NASA, and Johns Hopkins.
Cost varies enormously, from several fully free programs like MITES Semester and MIT PRIMES-USA, up to $8,160 for Harvard's most intensive online session, so it's worth budgeting carefully depending on which type of program fits.
Most of these are highly selective research or academic immersion programs rather than general enrichment courses, giving strong applicants direct mentorship from university faculty and researchers.
All of these are fully online, so location isn't a barrier for any entry on this list, though a couple do offer optional in-person components for finalists or extended participants.
The earliest deadline falls on January 1 for one of the most competitive MIT-affiliated research funding programs, with several more clustering into February, so it's worth starting applications well before winter break wraps up.
1. MITES Semester
Location: Virtual
Cost/Stipend: None
Acceptance rate/cohort size: ~6–7% estimated; ~275 students
Dates: June – December
Application Deadline: February 1
Eligibility: Rising high school seniors who are U.S. citizens or permanent residents
The MITES Semester is a free, six-month online STEM and college-preparation program designed for rising high school seniors. You will explore advanced topics like machine learning, astrophysics, and thermodynamics, alongside core subjects such as calculus or computer science. During this journey, you will take two challenging online courses, design a collaborative final project, participate in weekly interactive webinars, and practice mock interviews. What makes this program unique is its structure, blending an intensive summer STEM immersion phase with sustained, months-long mentorship and college counseling throughout the fall. By participating, you will develop rigorous academic foundations and sharpen your collaborative problem-solving skills.
2. Ladder Internship Program
Location: Remote
Cost: Varies depending on the program type; full financial aid is available
Acceptance rate/cohort size: Around 10%; 70–100 students per cohort
Dates: Multiple cohorts throughout the year, including Spring, Summer, Fall, and Winter
Application Deadline: Varies as per cohort; Spring (January), Summer (May), Fall (September), and Winter (November)
Eligibility: High school students, undergraduates, and gap year students who can work for 10-20 hours/week for 8-12 weeks
Ladder Internships is a selective virtual internship program designed for high school students interested in gaining experience with startups. You work with a high-growth company across industries such as technology, AI/ML, health tech, marketing, journalism, and consulting. These startups typically have significant funding, often raising over a million dollars on average. You collaborate closely with a manager and contribute to real-world projects during the internship. You present your work to the company at the end of the program. The internship is generally conducted over eight weeks. Apply now!
3. George Mason’s Aspiring Scientists Summer Internship Program (ASSIP)
Location: Virtual
Cost: $1,299 + $25 application fee; 100% tuition and application fee waivers for demonstrated financial need
Acceptance rate/cohort size: ~10% (estimated); ~290–300 interns
Dates: June 18 – August 12
Application deadline: February 15
Eligibility: Students who are 15 years or older by June 18 (for remote internships)
George Mason’s Aspiring Scientists Summer Internship Program (ASSIP) is a research-based internship that connects students with faculty-led STEM projects. You collaborate directly with researchers while using laboratory technologies and scientific methods. You explore fields such as chemistry, biochemistry, drug discovery, and molecular medicine through applied research. You take part in experimental work that can include data analysis, modeling, and lab investigations. You may also present your findings or contribute to research publications. Ultimately, you will master essential technical laboratory methods while building highly transferable skills in scientific writing, critical thinking, and complex problem-solving.
4. Lumiere Research Scholar Program
Location: Remote
Cost: Varies depending on the program type; full financial aid is available
Acceptance rate/cohort size: Around 12.5%; typically, a 1:1 mentor-to-student ratio
Dates: Varies by cohort: summer, fall, winter, or spring. Options range from 12 weeks to 1 year
Application Deadline: Varying deadlines based on cohort
Eligibility: Currently enrolled high school students with demonstrated high academic achievement (accepted students typically maintain an unweighted GPA of 3.3 or higher)
The Lumiere Research Scholar Program is a structured research program designed for high school students across a wide range of academic interests. You work one-on-one with a PhD mentor to develop an independent research project over the course of the program. You can choose topics from fields such as psychology, physics, economics, data science, computer science, engineering, chemistry, and international relations. You engage in guided research with a focus on building analytical and academic skills. You complete a full research paper by the end of the 12-week program. You can explore application details here and student experiences here and here.
5. ASPIRE by the Johns Hopkins University
Location: Virtual or in-person at Johns Hopkins University Applied Physics Laboratory, Laurel, MD
Cost/Stipend: None
Acceptance rate/cohort size: <10%; ~60 students
Dates: Summer session: June 24 – August 21; Academic year session (optional extended opportunity): September 15 – May
Application Deadline: February 15
Eligibility: Rising high school junior or senior, at least 15 years old by June 1, minimum 2.8 GPA, U.S. citizen (green card holders ineligible), permanent resident of select MD/VA counties or Washington, D.C., and must have reliable transportation to APL
The Johns Hopkins ASPIRE program offers you a unique, unpaid internship to explore STEM careers before college. You will choose to delve into biology, chemistry, computer science, engineering, IT and cybersecurity, mathematics and data analysis, physics, or planetary science. During the internship, you will conduct hands-on research, solve real-world technical problems alongside expert mentors, and present your findings via a digital poster. The program uniquely prioritizes a supportive, evaluation-free learning environment, offering both virtual and in-person formats with an option to extend into the academic year. By participating, you will master crucial technical skills while developing essential teamwork, communication, and problem-solving abilities.
6. MIT PRIMES-USA
Location: Online
Cost: None
Acceptance rate/cohort size: Estimated at <10%; ~50 students
Dates: January 1 – December 31
Application Deadline: November 17
Eligibility: High school sophomores and juniors in the United States who live more than 50 miles from Boston
MIT PRIMES-USA is a free, year-long remote research program where you collaborate on unsolved problems with MIT-affiliated mentors. Covering advanced topics in pure mathematics, theoretical computer science, and computational biology, the program immerses you directly in actual academic research. Throughout the year, you will complete an intensive reading phase, conduct independent research on open problems, write a formal academic paper, and present your findings at a fall conference. Unlike typical short-term summer camps, its unique distance-learning model and continuous schedule let you tackle deep, open-ended challenges from home. Ultimately, you develop proof-based problem-solving skills, master rigorous mathematical communication, and learn college-level research.
7. Stanford University Mathematics Camp (SUMaC)
Location: Online, Stanford University
Cost: $3,750; 100% financial aid is available
Acceptance rate/cohort size: Estimated 5–8%; ~64 students per session
Dates: June 15 – July 3 (Session 1) and July 6–24 (Session 2)
Application Deadline: February 2
Eligibility: Students in 10th or 11th grade at the time of application who demonstrate a strong interest in mathematics
Stanford University Mathematics Camp (SUMaC) online is an intensive, three-week summer program where you can dive into pure mathematical enrichment beyond the standard high school curriculum. As a participant, you will explore advanced topics like abstract algebra, number theory, and algebraic topology. Unlike programs focused on speed or competition math, its unique feature is a complete immersion in proof-based theoretical concepts within a collaborative, non-graded environment. During the camp, you will tackle daily problem sets and participate in live group problem-solving sessions. You will also attend guest lectures from mathematicians and present a final research project.
8. Stanford AI4ALL
Location: Virtual (Stanford University, Stanford, CA)
Cost: $4,120; need-based financial aid is available
Acceptance rate/cohort size: Estimated <10%; ~30 to 86 students
Dates: June 15–26
Application Deadline: February 6
Eligibility: Current 9th grade students worldwide
The online Stanford AI4ALL program is a two-week intensive designed to introduce you to artificial intelligence. You will explore core topics such as machine learning, computer vision, natural language processing, and AI ethics. During the program, you will actively complete Python coding exercises, collaborate on real-world group research projects, and attend faculty lectures. The program uniquely focuses on empowering underrepresented high school students while emphasizing human-centered AI for social good. Furthermore, you will receive personalized guidance through small-group mentoring sessions with experienced AI professionals. By the end, you will develop practical programming and data analysis skills alongside ethical problem-solving abilities for your STEM career.
9. MIT Lincoln Laboratory + MIT School of Engineering – MIT Beaver Works Summer Institute (BWSI) — Online Courses
Location: Virtual
Cost/Stipend: None
Acceptance rate/cohort size: Estimated at <10% overall; approximately 250–350 students across all summer courses
Dates: Online prerequisites: Early February to late June
Application Deadline: Late March
Eligibility: High school students in grades 9-11; reside and attend high school in the U.S.
As a high school student, you can explore advanced STEM fields through the MIT Beaver Works Summer Institute (BWSI) online courses. You will cover topics like artificial intelligence, autonomous systems, cybersecurity, microelectronics, quantum computing, remote sensing, and serious games. During the program, you will program virtual autonomous cars, build machine learning algorithms, process geospatial data, and navigate drone obstacle courses. A unique feature is the program's direct connection to MIT Lincoln Laboratory, offering real-world, project-based challenges that act as prerequisites for their intensive summer camp. Ultimately, you will learn practical skills such as Python programming, complex systems engineering, and applied data analysis to prepare you for future technical research.
10. MIT THINK Scholars
Location: Primarily virtual with a four-day visit to MIT for finalists
Cost: No cost with up to $1,000 in project funding for finalists
Acceptance rate/cohort size: Estimated <1%; up to 6 finalists/winners per year
Dates: Finalists announced in February, projects completed by June
Application Deadline: January 1
Eligibility: All high school students, applying individually or in teams of two; permanent U.S. residents
The MIT THINK Scholars Program offers you the chance to receive funding and mentorship for your proposed research ideas, rather than judging already completed work. You will explore topics across science, technology, engineering, and mathematics by pitching a novel solution to a real-world problem. Throughout the program, you will write a detailed project proposal, participate in weekly mentorship meetings with MIT undergraduates, build your actual project, and tour MIT's research laboratories. A standout feature of this competition is its exclusive focus on your ideation stage, providing up to $1,000 in seed funding and an all-expenses-paid campus trip to help you physically construct your vision.
11. Stanford CNV-X
Location: Virtual (Online via Zoom)
Cost: $1,725; need-based scholarships cover up to 90% of the program fee
Acceptance rate/cohort size: ~12% (Estimated); 12:1 student-to-staff ratio
Dates: Session 1: June 8–19; Session 2: June 22 – July 3
Application Deadline: Rolling admissions
Eligibility: High school students worldwide (typically entering their sophomore, junior, or senior year)
The Stanford Clinical Neuroscience Immersion Experience Virtual (CNV-X) program is a summer opportunity where you explore neuroscience, psychiatry, and psychology. You will cover behavioral science, clinical psychiatry, and holistic mental health, alongside sensitive topics like addiction and psychosis. You will participate in interactive lectures with Stanford faculty, complete assigned readings, and collaborate in small discussion groups. Uniquely, the curriculum provides a sampler of cutting-edge research without requiring you to work in a lab or with patients. Ultimately, you will learn to think like a clinical neuroscientist by developing a capstone prototype to solve a real-world mental health problem.
12. NASA + University of Texas at Austin Center for Space Research – NASA SEES High School Summer Intern Program — Virtual Projects
Location: Online
Cost: None
Acceptance rate/cohort size: ~10.8%; ~215 studentrs
Dates: Virtual projects run June–July 21, with schedules varying by project; Earth & Space Science and Python distance-learning modules open May 15 – July 1; Virtual SEES Science Symposium July 20–21
Application Deadline: February 22
Eligibility: Current high school sophomores or juniors (rising juniors and seniors) who have not previously interned with SEES; 16 years old by July 5; strong interest in science, technology, engineering, and math; ability to complete online requirements before the program; U.S. citizens
As a high school student in the competitive, fully funded NASA SEES virtual program, you will dive into authentic research alongside NASA scientists. You will explore diverse topics, including aerospace, astronomy, planetary science, remote sensing, and microgravity research. Throughout the internship, you will analyze real satellite data, complete distance learning modules, design hypothetical mission parameters, and present your findings at the SEES Virtual Science Symposium. What makes this program unique is your direct, remote access to professional-grade NASA datasets and dedicated mentorship from subject matter experts. Ultimately, you will build critical technical expertise in data analysis and engineering design while mastering essential collaboration and communication skills.
13. MathQuantum High School Fellowship — University of Maryland / NSF MathQuantum
Location: Virtual (Online)
Cost: None
Acceptance rate/cohort size: Selective (Estimated); ~10 students
Dates: Two-week summer session (typically mid-July to early August)
Application Deadline: Mid-February
Eligibility: High school students worldwide with an interest in mathematics, computer science, physics, and/or quantum information science. (Non-U.S. citizens may apply and participate but cannot receive stipends or paid camp attendance)
The MathQuantum High School Fellowship is a free, two-week online summer program by the NSF and the University of Maryland introducing you to quantum information science. You will study linear algebra, quantum mechanics, cryptography, qubits, entanglement, and Python-based quantum programming. To learn these concepts, you will attend lectures, participate in coding labs, join group discussions, and present a final mini-project. Uniquely, the fellowship restricts its cohort to just 10 students for highly focused learning. It also provides rare exposure to practical tools like QLab and physical systems like ion traps. Ultimately, you will develop skills in logical reasoning, mathematical communication, and quantum programming.
14. University of Iowa — Iowa Young Writers’ Studio: 6-Week Online Courses
Location: Virtual
Cost: $475 per course; financial aid is available
Acceptance rate/cohort size: Estimated 10–20% overall; cohort size not specified
Dates: Summer: June 14 – July 26; Winter: Mid-January – Late February
Application Deadline: Summer: April 20; Winter: September–October
Eligibility: Students in grades 9–12; must have a minimum 3.0 cumulative GPA; able to read and write in English
In the Iowa Young Writers' Studio 6-Week Online Courses, you will explore creative writing through asynchronous classes taught by esteemed graduates of the Iowa Writers' Workshop. You can choose from specialized topics covering nonfiction and personal essays, poetry, speculative fiction, general creative writing, and fiction. Throughout the program, you will read assigned literary materials, draft weekly writing assignments, critique your classmates' pieces, and participate in lively discussion forums. A uniquely flexible feature of this program is its asynchronous format, allowing you to complete your coursework on your own schedule from anywhere in the world. Ultimately, you will develop skills in idea generation, thoughtful revision, and experimenting with literary form, style, and voice.
15. Harvard Secondary School Program (Online)
Location: Virtual
Cost/Stipend: $4,180–$8,160 + $75 application fee; financial aid available
Acceptance rate/cohort size: Around 25% (estimated); cohort size not specified
Dates: June 20–August 8
Application Deadline: April 1
Eligibility: Graduating high school and entering college in program year/+1/+2 years; at least 16 years old by June 20 and not turning 19 before July 31
The Harvard Secondary School Program Online is a rigorous seven-week summer initiative that provides you with a genuine college-level academic experience from home. You can earn up to eight college credits by exploring diverse topics like computer science, global justice, economics, and neuroscience. To build community, you will participate in engaging online activities such as college admissions panels, virtual language meet-ups, and open mic nights. Uniquely, the program allows you to learn directly from renowned Harvard faculty and study alongside actual undergraduates without having to relocate. By the end of the session, you will have developed essential college-readiness skills, including time management, advanced academic skills, and strategic career planning.
Questions students often ask about these programs
1. Do I need advanced coursework already to apply to these STEM programs?
It depends on the program. Several of the most selective research-based options do favor students with strong math or science coursework, while a few, including some AI and quantum-focused programs, are designed to teach foundational concepts from scratch.
2. These programs range widely in cost, from free to over $8,000. How should I decide which one is worth it?
Look at what's included, like faculty access, mentorship structure, and whether you'll complete an independent project or research paper. If cost is a major factor, the free MIT and NASA-affiliated programs offer strong value without a price tag.
3. One of these programs isn't actually STEM-focused. Should I still consider it if I'm interested in STEM?
Not really, unless you're also interested in creative writing specifically, since that particular program doesn't connect to STEM subjects. It's worth focusing on the other 14 entries if a STEM-focused experience is your main goal.