ALA accreditation is non-negotiable: most employers and all state school librarian licenses require a degree from an ALA-accredited program.
Most online MLIS programs run 36 to 42 credits and take 18 to 36 months, with total tuition typically ranging from $11,000 to $45,000.
Librarian roles are stable but slow-growing through 2034, with median pay clustered in the $60,000s for full-time positions.
Many ALA-accredited online programs have dropped the GRE, so admissions now hinge on transcripts, statement of purpose, and references.
Most professional librarian, archivist, and information specialist jobs in the United States require a master's degree accredited by the American Library Association. That credential is the gate, and earning it online is now the default path for working adults.
The degree goes by several names: MLIS, MLS, or MSLS. The letters differ by school, but the curriculum, accreditation standard, and job-market value are essentially the same. If you're starting your search, our roundup of the best online MLIS programs 2026 is a useful companion to this guide.
This guide walks through what matters when choosing a program: ALA accreditation, tuition and timeline, top online programs compared side by side, specializations and where they lead, admissions and GRE policies, and answers to the questions prospective students ask most.
MLIS vs. MLS vs. MSLS: What the Online Master's in Library Science Actually Is
The online master's in library science is a graduate-level professional degree that prepares you to work as a librarian, archivist, metadata specialist, digital curator, or information manager across public, academic, school, corporate, and government settings. It typically runs 36 to 42 credit hours and combines core coursework in reference, cataloging, collection development, research methods, and information ethics with electives that let you specialize.
The Acronyms Are (Mostly) the Same Degree
You will see programs labeled MLIS (Master of Library and Information Science), MLS (Master of Library Science), and MSLS (Master of Science in Library Science). For hiring purposes, these are functionally interchangeable. Some schools rebranded from MLS to MLIS in the 1990s and 2000s to reflect the field's expansion into information science and digital systems, but the underlying credential is the same. If you want a deeper breakdown of the difference between MLS and MLIS, the naming history is more about marketing than substance.
What actually matters is whether the program is accredited by the American Library Association. Most professional library jobs, especially in academic and public libraries, require an ALA-accredited degree regardless of which acronym appears on the diploma.
Who the Degree Is For
The MLIS is designed for career changers, current library paraprofessionals moving into professional roles, and recent graduates from any undergraduate major. There is no required prerequisite major: English, history, computer science, biology, and education backgrounds are all common. Reviewing the standard librarian degree requirements before you apply can help you map out prerequisites and timelines.
Yes, You Can Earn It Fully Online
Most ALA-accredited programs now offer fully online tracks, including asynchronous coursework that lets you keep working while you study. A small number still require brief on-campus residencies, but the majority are 100 percent remote.
One caveat: K-12 school librarian roles and some federal positions require additional state teaching licensure or specialized certification on top of the MLIS. Confirm those school librarian licensure requirements with your state's department of education before enrolling.
Is an Online MLIS Worth It? Job Outlook and Salary Through 2034
If you're weighing an online MLIS, the honest answer is this: library science is not a fast-growing or high-paying field, but it is stable, credentialed, and mission-driven. Here is what the most recent federal labor data says, and how to read it.
What Librarians Actually Earn
The Bureau of Labor Statistics reports a median annual wage of $64,320 for librarians and media collections specialists in 2024,1 with a mean closer to $68,570 (about $32.97 per hour) in May 2023.2 That puts the profession solidly in the middle of the white-collar pay band: not lucrative, but not subsistence either. For a deeper sector-by-sector breakdown, see our guide to library science salary data.
Pay varies meaningfully by sector:
School libraries (K-12): roughly $71,800 mean, with school district pay scales and summer schedules
Public libraries (local government): around $62,360 mean, often the lowest-paying sector but the most numerous
Academic libraries (colleges and universities): about $73,890 mean, with junior colleges slightly higher near $78,530
Special libraries: the top of the range, with federal government librarians averaging roughly $102,000 and legal services librarians around $91,000
If salary is your main concern, federal, legal, medical, and corporate libraries are where the numbers climb. Public library work pays less but tends to offer the most positions and the strongest community-service appeal.
Job Outlook Through 2034
Projected employment growth for librarians is about 2% from 2024 to 2034, slower than the average for all occupations.1 That headline number, however, undersells the opportunity. BLS projects roughly 13,500 annual openings over the decade, most driven by retirements and turnover rather than new positions. So yes, library science is still in demand: the field is not expanding rapidly, but it is consistently hiring. Our overview of careers in library science walks through where those openings tend to concentrate.
Archivists, curators, and museum workers (a parallel SOC group MLIS graduates often enter) tend to project faster growth than librarians proper, though from a smaller base of total jobs.
The Honest Tradeoff
An MLIS is a gatekeeping credential: most professional librarian positions, especially in academic and public libraries, require an ALA-accredited master's degree. The degree is rarely the path to a six-figure salary, but it is the standard ticket into a stable, intellectually engaged career. Run the tuition math against realistic starting pay in your target sector before you enroll.
ALA Accreditation: The One Thing You Cannot Skip
If you take away one rule from this guide, make it this: your online MLIS must be accredited by the American Library Association (ALA). Accreditation is the single biggest filter employers use when sorting applications, and it is almost never negotiable for the jobs most students are aiming at.
Why Hiring Managers Filter on It
Most academic libraries, large public library systems, and federal employers (including the Library of Congress and the Smithsonian) explicitly require an ALA-accredited master's degree in their job postings. A degree from a non-accredited program, even a good one, often gets screened out before a human reads your resume. School librarian and special librarian roles are sometimes more flexible, but the safe assumption is that without ALA accreditation, your degree closes more doors than it opens.
How to Verify a Program
Don't take a school's marketing page at its word. Go to the ALA accredited MLIS programs directory, which lists every currently accredited program in the United States, Canada, and Puerto Rico. There are roughly 60-plus accredited programs across North America, and the large majority now offer fully online or hybrid pathways. If a school isn't on that list, the degree isn't ALA-accredited, full stop.
Two Accreditations, Not One
ALA accredits the library science program. A separate body (your university's regional accreditor, such as SACSCOC, HLC, or MSCHE) accredits the university itself. You want both. Regional accreditation is what makes your credits transferable and your degree recognized for federal financial aid.
A Note for Future School Librarians
If you plan to work in K-12 schools, check your state's licensure rules. Many states require the education unit to hold CAEP accreditation, or require specific coursework, on top of an ALA-accredited MLIS. Before you enroll, verify the online MLIS school librarianship pathway and licensure requirements, not after.
Top Online MLIS Programs Compared: Tuition, Credits, and GRE Status
The online MLIS market is competitive, which works in your favor. Below is a snapshot of well-known ALA-accredited online programs with their 2026 tuition, credit requirements, GRE policy, and typical completion time.1 Use it as a starting point for comparison, not a final ranking. Fit, specialization, and licensure for your state matter just as much as sticker price.
How to Read the Comparison
Three numbers do most of the work: per-credit tuition, total credits required, and the resulting total program cost. A program with a low per-credit rate but 43 required credits can end up costing more than a pricier program that only requires 36. GRE status matters for application logistics and timing, while duration tells you how aggressively you can finish if you study part-time around a job. If standardized testing is a barrier, it's worth reviewing MLS no GRE options early in your search.
One important caveat: the per-credit figures shown reflect the rate most online students actually pay, which is often a flat e-tuition rate or in-state equivalent. Several public universities charge significantly more if you enroll on campus or fall outside their online tuition policy. Always confirm the current rate with the school for your residency status before budgeting.
2026 Online MLIS Snapshot
University of North Texas: 36 credits at $442 per credit, about $15,912 total. GRE waiver available. Typical completion 21 to 24 months.
University of Alabama: 36 credits at $480 per credit, about $17,280 total. GRE waiver available. Typical completion 18 to 24 months.
University of South Florida: 39 credits at $435 per credit, about $16,965 total. GRE waiver available. Typical completion 24 months.
Indiana University: 36 credits at $520 per credit, about $18,720 total. GRE waiver available. Typical completion 21 months.
San Jose State University: 43 credits at $568 per credit, about $24,424 total. GRE waiver available. Typical completion 21 to 24 months.
University of Illinois Urbana-Champaign: 40 credits at $670 per credit, about $26,800 total. GRE waiver available. Typical completion 24 months.
What the Numbers Tell You
A few patterns are worth flagging. First, GRE waivers are now the norm, not the exception, across major ALA-accredited online programs. Second, total program cost for a reputable online MLIS in 2026 generally lands between roughly $16,000 and $27,000, well below the cost of many other master's degrees, a point worth weighing against the cheapest library science degree online rankings. Third, credit requirements vary more than you might expect: a seven-credit difference between a 36-credit and 43-credit program translates to thousands of dollars and an extra semester of work.
How Long and How Much: Timeline and Cost of an Online MLIS
An online MLIS is a real graduate degree, and the time and money it takes vary more than most prospective students realize. Here is what to budget for, in both calendar months and dollars.
Credit Hours and Calendar Time
Most ALA-accredited online MLIS programs require 36 to 48 credit hours. At a normal full-time pace (3 to 4 courses per term), you can finish in 18 to 24 months. Part-time students, which is how the majority of working library staff actually enroll, typically take 2.5 to 4 years.
Two edges of that range are worth knowing about:
Time limits. Schools usually give you 5 to 7 years from your first course to finish before credits start expiring. If life intervenes, you have runway, but not unlimited runway.
Accelerated tracks. A small number of programs advertise 12 to 15 month completion for students who can take a heavy load year-round. These are the exception, not the norm.
Realistic Tuition Range
Total tuition for an online MLIS lands roughly between $11,000 on the low end and $40,000 or more at private universities. Public programs charging in-state or flat online rates are dramatically cheaper than private peers offering the same ALA-accredited credential.
Budget programs like the University of North Texas and Valdosta State University routinely come in under $15,000 total. Mid-tier publics tend to land in the $18,000 to $28,000 zone. Private and high-prestige programs push past $40,000.
Hidden Costs
Sticker tuition is not the whole bill. Watch for:
Technology and distance learning fees, often $50 to $100 per credit
Practicum or internship travel if your program requires on-site hours
Short residency intensives at programs that brand themselves as fully online
Books, professional association dues, and conference travel for networking
Financial Aid Levers
You have more options than federal loans. Graduate assistantships at your home institution can cover tuition plus a stipend. The ALA Spectrum Scholarship supports students from underrepresented groups, and other scholarships for MLIS students are listed by award type and eligibility. IMLS-funded grants periodically underwrite cohorts in specializations like youth services or rural librarianship. And many library employers offer tuition reimbursement, which is one reason so many MLIS students work in libraries while they study.
The Practical Rule
Pick the cheapest ALA-accredited program that fits your specialization. Hiring managers care that the degree is accredited. They rarely care which accredited school issued it.
An MLIS is really a family of related degrees stitched together by a common core. The specialization you choose shapes your electives, your practicum placement, and the kinds of jobs you can credibly apply for after graduation. For guidance on matching a track to your goals, see our walkthrough on how to choose a concentration for library science program, and pick one before you apply, not after you arrive.
The Major Tracks
Academic librarianship: Day to day, you support faculty research, teach information literacy sessions, and manage subject collections. Typical employers are universities, community colleges, and research institutes.
Public librarianship: You run programming, assist patrons across every age group, and help shape community services. Employers are city, county, and regional library systems.
School media (school librarianship): You teach research skills, curate the school's collection, and collaborate with classroom teachers. Employers are K-12 districts, public and private.
Archival studies: You appraise, preserve, and provide access to historical records. Employers include university archives, government agencies, museums, and corporate history offices.
Digital libraries and data curation: You manage repositories, metadata, and research data lifecycles. Employers are research universities, federal agencies, and large nonprofits.
Niche Tracks Worth Knowing
Smaller specializations include music librarianship (conservatories, symphony libraries), law librarianship (law schools and firms, often paired with a JD), medical and health sciences librarianship (hospitals, med schools), and book arts or rare books (special collections, auction houses). Records-focused students sometimes pursue an online MLIS records management track that bridges archives and corporate information governance.
Licensure and Pay Realities
School librarianship carries the most extra friction: most states require a separate teaching license or school media credential on top of the MLIS, sometimes with classroom teaching experience. Confirm your state's rules before enrolling, because not every online program is approved in every state.
Archival and digital curation roles tend to pay slightly above the librarian median, especially in federal agencies and well-funded research universities, because the technical skill set (metadata standards, preservation software, data management) is in shorter supply. Academic and public roles cluster nearer the median, with directors earning meaningfully more.
Admissions: GRE Waivers, Prerequisites, and Application Timing
Admissions requirements for online MLIS programs vary widely, and policies shift from one cycle to the next. The American Library Association does not mandate the GRE for accredited programs, so individual schools set their own testing rules.1 The result: some programs have permanently dropped the exam, others list it as optional, and a handful still require it. Always confirm the current policy on the program's own admissions page before you build your application timeline.
GRE Requirements at a Glance
Among ALA-accredited online programs, GRE policies in 2026 fall into three camps:
GRE required: Louisiana State University's online MLIS still requires the GRE, with a minimum 300 composite score and a 3.5 on the analytical writing section.2
GRE waived or not required: The University of Denver and the University of Alabama do not require the GRE for admission to their online MLIS programs.34
Test-optional or conditional waivers: Many programs grant waivers based on prior graduate work, undergraduate GPA, or years of relevant experience. These conditions change often, so verify directly with the department.
Typical GPA and Prerequisite Expectations
Most programs look for a minimum undergraduate GPA around 3.0 on a 4.0 scale. Both Denver and Alabama publish a 3.0 minimum, which is broadly representative of the field. Applicants below that threshold may still be considered with strong professional experience, a compelling statement of purpose, or supplemental materials. Library science programs rarely require specific undergraduate coursework, which makes the MLIS accessible to career changers from teaching, publishing, IT, or the humanities.
Planning Your Application Timeline
Deadlines, rolling admissions windows, and any unusual prerequisites (such as a research statement, writing sample, or technology proficiency requirement) are updated each cycle and are not reliably aggregated by third-party directories. Use the ALA's list of accredited programs as your starting point, then go directly to each school's graduate admissions page or contact the department to confirm current rules. For broader career data such as librarian job outlook, BLS.gov is the authoritative source; for admissions specifics, trust only the university itself. If you're still weighing options, our guide on how to choose a library science program walks through fit factors beyond admissions.
Frequently Asked Questions About the Online MLIS
Below are quick answers to the questions prospective students ask most often when researching online library science master's programs. Use them as a starting point before comparing specific schools, costs, and specializations.
Can you get a Master's degree in library science online?
Yes. Dozens of universities offer the MLIS fully online, including programs accredited by the American Library Association. Most coursework is asynchronous, meaning you log in on your own schedule, though some courses include live sessions. A handful of programs require a brief on-campus residency or practicum at a local library, but pure online completion is common.
Can I be a librarian with any Master's degree?
Generally no. Most professional librarian positions, especially in public libraries, academic libraries, and school media centers, require a master's degree from an ALA-accredited program. Related degrees in information science or education may qualify you for adjacent roles like instructional designer or archivist, but the standard credential for the title 'librarian' is the ALA-accredited MLIS or MLS.
Is library science still in demand?
Yes, though the field is shifting. The U.S. Bureau of Labor Statistics projects steady growth for librarians and media collections specialists through 2034, with strong demand in data curation, digital archives, health sciences, and academic research support. Traditional public library roles remain stable, while specializations in technology, metadata, and information literacy are expanding fastest.
How long does it take to get a Master's in Library Science online?
Most online MLIS programs require 36 to 42 credit hours. Full-time students typically finish in 18 to 24 months, while part-time students take three to four years. Accelerated tracks at some schools allow completion in 12 to 15 months, and most accredited programs cap enrollment at six or seven years to ensure coursework stays current.
What is the cheapest online MLIS program?
Tuition varies widely, but public universities offering in-state or flat online rates tend to be the most affordable, often totaling under $20,000 for the full degree. Schools like the University of Southern Mississippi, Valdosta State, and East Carolina University frequently appear on lowest-cost lists. Always verify current per-credit rates and required fees directly with the program.
Is an online MLIS ALA-accredited?
Many are, but not all. The American Library Association accredits programs, not delivery formats, so an online MLIS from an ALA-accredited school carries the same professional standing as its on-campus version. Before enrolling, confirm the program's current status on the ALA's official directory of accredited programs, since accreditation is the single most important hiring credential.
