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New Yorkers 1st Choice
Local picks in New Jersey

HIIT workouts

High-intensity interval training that pushes your limits without making you feel like just another number in the room.

Based on 616 Opinions
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Updated April 2026
01
GeneWorks Fitness/The Bodyweight Bootcamp image 1
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Classes offer a full body workout with a varied format that alternates between cardio, strength, and endurance. The atmosphere is supportive and motivating, with a clean space and a friendly group that welcomes all fitness levels.

Classes offer a fun and challenging mix with an intensive workout. The atmosphere feels supportive and engaging.

Classes offer an intense workout that feels both planned out and beginner friendly. Sessions are versatile and interactive, leaving you energized and accomplished.

People are saying

"Gene's HIIT class was fun, engaging, and super motivating."

"Gene's fun activities made me feel like family and pushed me."

"Gene's Bootcamp Classes are motivating and challenging, helping you recover and achieve goals."

Good to know

1

Classes are suitable for all fitness levels, from beginners to enthusiasts.

2

The class format varies daily, alternating between cardio, endurance, and strength.

3

Expect a full body workout in each one-hour session.

02
X-hale Hot Yoga Studio image 1

Large, clean studio maintains high heat around 105Β°F for intense workouts. Vibrant, supportive community energizes sessions with varied challenging classes and dynamic playlists. Space feels inviting and comfortable, blending physical challenge with positive atmosphere.

Classes bring high-energy vibes and hardcore challenges. Thursday nights feature Hot HIIT Pilates that keeps the fun going strong.

Classes combine Hot HIIT Pilates with energetic moves that keep intensity high. Instructors like Elise, Nicole, and Valerie lead sessions that are both challenging and fun.

People are saying

"The HIIT classes here are challenging and always different."

"The instructors at this hot yoga studio are warm, knowledgeable, and motivating."

"The classes are challenging and fun with high-energy vibes."

Good to know

1

Bring a towel and water, as classes can be intense and sweaty.

2

The studio offers a variety of classes, including Hot HIIT Pilates and yoga.

3

Classes are suitable for all levels, from beginners to advanced yogis.

03
Basecamp Fitness Edgewater image 1

Gym offers welcoming atmosphere with a supportive community focused on goals and personal growth. Space feels like a team environment energized by upbeat music and motivating workouts that vary daily.

Short, effective classes keep energy high. Workouts combine fun with productivity, focusing on HIIT.

Classes last 35 to 45 minutes, fitting well into busy schedules. Coaches lead highly effective HIIT workouts with unique, motivating trainers guiding every session.

People are saying

"This gym feels like a supportive family, not just a place to work out."

"The coaches here make HIIT workouts awesome and motivating."

"The staff and coaches here are so motivating and helpful."

Good to know

1

Classes are 35 to 45 minutes long, perfect for busy schedules.

2

The gym offers a variety of HIIT workouts every day.

3

Parking is plentiful and easily accessible for members.

04
SWEAT440 Fitness Toms River image 1

Gym features dark lighting and color-coordinated stations with step-by-step exercise videos, creating an energetic and motivating atmosphere. Classes start every 10 minutes, offering flexible scheduling that suits busy timetables. Upbeat music and engaging coaches keep workouts fun and challenging in a clean, modern facility.

Workouts combine fun and challenge with a variety of different routines every day. The environment stays clean and energetic, making exercise feel more like play than a chore.

Circuit-style workouts run on a tight 40-minute schedule with equipment and weights. The gym keeps a strong energy level and offers frequent sessions to jump into anytime.

People are saying

"The gym's coaches are amazing and push you to reach your potential."

"The workouts are challenging and fun, different every time."

"It's so convenient to pop in for a 40-minute HIIT class anytime."

Good to know

1

Classes start every 10 minutes, allowing flexibility to join at different times.

2

Workouts last only 40 minutes, making it easy to fit into a busy schedule.

3

The facility is very clean and well-maintained with new equipment.

05
Evolution Fitness image 1
Fitness center

Fitness center resembles a nightclub with bright lighting and loud music driving nonstop motion. Classes like Cardio Kickboxing HIIT and Spinning deliver high energy and motivating beats that keep the pace intense. Spacious, clean environment supports a strong community vibe that makes workouts feel exciting.

Classes like Zumba Strong and Cardio Kickboxing HIIT bring intense energy and fun to workouts. The team makes sessions feel like a fun event, not a chore, with activities like Step Aerobic HIT and total-body challenges.

Cardio Kickboxing HIIT classes bring nonstop motion with lights and beats, making workouts fast and fierce. Total Burn HIIT sessions deliver intense calorie burn, while HIIT Fat Blaster gets the heart racing with high energy.

People are saying

"This is the best weight lifting gym I've ever attended."

"These fun activities are intense, sweaty, and ridiculously fun."

"This HIIT class was fast, sweaty, and ridiculously fun."

Good to know

1

Free parking is available for gym members.

2

The gym offers a variety of classes, including HIIT and Zumba.

3

Expect a clean environment with well-maintained equipment.

06
Revive HIIT Factory image 1

Small gym space offers modern equipment and daily changing workouts that mix strength, cardio, and functional training. Energy stays high and supportive, with encouraging staff and a strong sense of community. Cleanliness and thoughtful class design create a motivating environment for all fitness levels.

Staff make fitness and health enjoyable with a great selection of classes that stay fun and challenging. Every workout delivers fun and sweat, helping improve health and fitness.

High-energy workouts combine with top-notch coaches who push you just right. The space offers an uplifting environment with a strong sense of community and motivation that drives serious results.

People are saying

"The coaches at this gym are supportive and push you to your best."

"The HIIT coaches here are so supportive and motivating."

"The community here makes it a truly supportive and welcoming place."

Good to know

1

Membership costs are higher than average, so budget accordingly.

2

The gym offers a variety of classes, including HIIT and strength training.

3

Friday night classes are particularly popular and vary each week.

07
NJ HIIT Fitness image 1
Physical fitness program

Fitness program offers intense, focused training with detailed, hands-on instruction for firefighting skills. Atmosphere combines warmth and discipline, fostering a supportive, motivated community that pushes members to excel.

Workouts combine fun and challenge to keep energy high. Activities and themes engage kids with playful elements.

Training includes a firefighter PPT that mirrors the state test with a maze crawl, obstacle course, and ladder climb. The environment stays supportive and motivating throughout high-intensity sessions.

People are saying

"This gym's firefighter physical fitness test prep course is intentionally harder than the real test."

"The HIIT community here is so warm and motivating."

"The coaches make the fun activities engaging and motivating."

Good to know

1

The gym offers specialized training programs for aspiring firefighters.

2

Community events include sneaker drives and support for the homeless.

3

Members receive hands-on training for the firefighting physical test.

08
Drop Fitness image 1

Small, well-designed gym offers luxury amenities like sauna, cold plunge, and various classes including yoga and cycling. Atmosphere stays clean and tranquil with a welcoming vibe that suits all fitness levels. Equipment is top-notch and modern, enhancing the overall experience.

Classes feature fun and motivating instructors like Maura, Jojo, Court, and Blanca. Joanna’s sessions are intense but enjoyable, keeping the energy high throughout.

Classes blend HIIT and weight training with strong focus on form and safe progression. Instruction pushes participants effectively toward fitness goals.

People are saying

"The gym staff here is so friendly and helpful."

"I felt I needed more instruction from Lisa during Yoga Spot classes."

"The HIIT trainers bring unmatched energy and motivation to every class."

Good to know

1

Drop Fitness offers a variety of classes including barre, Pilates, and HIIT.

2

Classes at Drop Fitness run throughout the day for flexible scheduling.

3

Parking at Drop Fitness is ample and convenient for visitors.

09
Lift & Glitz Training Studio image 1

Boutique-style gym offers a clean, trendy space with top-of-the-line equipment and an infrared sauna. Atmosphere feels like a supportive women-only community where motivation and empowerment thrive. Classes change monthly, keeping workouts fresh and instructors maintain an uplifting, no-judgment vibe.

Classes include total body, lower body, and upper body workouts alongside HIIT. Instructors like Ashley lead sessions that blend strength training with cardio-focused HIIT.

People are saying

"This weight lifting gym is a welcoming, empowering space for women."

"The workouts here are fun, challenging, and motivating."

"The HIIT coaches are amazing and really care about your goals."

Good to know

1

You could take a free trial class with no commitment.

2

The gym offers flexible class times that fit into busy schedules.

3

The classes are designed for women of all fitness levels.

10
Landmark Athletics and Fitness image 1

Spacious fitness center with a massive turf area and a wide variety of classes including bootcamp, yoga, and cycling. Friendly, motivating atmosphere with upbeat music and supportive trainers. Offers flexible schedules and caters to all fitness levels, creating a strong sense of community.

Special event classes and fun spin classes create a lively atmosphere. Coaches keep workouts engaging, making it easy to attend multiple classes in a day.

Turf workouts like P24, power strength & burn, and HIIT stand out here. Classes cover a wide range from intense HIIT to restorative yoga, all included in one membership.

People are saying

"The trainers here are so passionate and knowledgeable."

"This weight lifting gym has such a supportive and connected community."

"The coaches here make the workouts so fun and motivating."

Good to know

1

Classes are available from 5am to 9pm, accommodating various schedules.

2

The gym offers themed classes and pop-up events throughout the year.

3

Expect a variety of classes including boot camp, yoga, and cycling.

11
Crunch Fitness - East Brunswick image 1

Gym features newer machines, natural lighting, and a large group fitness room. Atmosphere is friendly and welcoming, with a mix of high school kids and personal training sessions in the turf area. Offers amenities like hydro massage and tanning options.

Classes offer a mix of unique workouts and exciting challenges. Dance and specialty sessions keep the energy high and workouts fun.

Classes led by Carolyn, Derek, Linda, Michelle, and Daisy focus on challenging cardio and varied HIIT workouts. Options include Spin and Yoga alongside HIIT, with daily group classes offering plenty of variety.

People are saying

"The energy in these gym classes is amazing and contagious."

"The Zumba classes here have terrific energy and choreography."

"Carolyn's HIIT classes were so enjoyable and energetic."

Good to know

1

Free pop-up classes are offered to thank members for their support.

2

The gym features a variety of fun classes, including dance and specialty workouts.

3

Spin classes led by Joe Diaz are highly praised.

12
Project Trnsfrm - NJ’s Premier Personal Fitness Center image 1

Facility combines modern luxury with top-notch equipment in a clean, well-designed space. Energy stays high and motivating through upbeat music and enthusiastic coaches. Community feels supportive and welcoming, fostering a positive atmosphere for personal growth.

Workouts offer engaging, challenging, and fun experiences that keep energy high.

Weekend classes focus on intense HIIT workouts that challenge endurance and strength. Equipment supports a mix of bootcamp, boxing, and personal training styles.

People are saying

"This weight lifting gym feels like family; everyone is so welcoming."

"The workouts here are engaging, challenging, and super fun."

"The HIIT instructors bring infectious energy and make workouts fun."

Good to know

1

The gym offers a free trial class for new members.

2

Facilities are clean and well-maintained with modern equipment.

3

Group workouts are available for all fitness levels.

13
Fitness By The Sea image 1

Bright, inviting gym space fosters a supportive community with a family-like atmosphere. Classes offer variety for all fitness levels, creating a welcoming environment where members motivate each other.

Welcoming atmosphere and knowledgeable staff make activities here fun and engaging.

Classes include 30+30 minute HIIT sessions that allow exercise modifications for injuries while still delivering a strong workout. Options range from CrossFit routines to cardio-intensive and strength training classes, including a 60-minute Flex class.

People are saying

"The coaches and members at this gym are so welcoming and supportive."

"The HIIT coaches here are fantastic and create a welcoming family atmosphere."

"Joining this place was the best decision I ever made."

Good to know

1

The gym hosts a social event once a month for members to connect.

2

Members can participate in various outside activities planned throughout the year.

3

Fitness By The Sea fosters a welcoming and inclusive community atmosphere.

14
Crunch Fitness - South Marlboro image 1

Spacious gym with new weights and machines arranged for better flow creates an inviting workout environment. Fun, well-chosen music energizes classes and the overall space. The atmosphere balances a welcoming community vibe with a mix of ages, including many children present during peak times.

Workouts stay different and challenging every time while keeping things fun and fast-paced. Lulu's Zumba classes bring great energy and motivation that make fitness enjoyable.

Lulu leads energetic HIIT classes that mix laughter with tough challenges, making workouts fly by. Classes at 6:30 PM fit well into many schedules, and instructors like Dee also run solid sessions.

People are saying

"Jeff, the trainer at the gym, was so encouraging and challenging."

"The instructors here bring amazing energy to make the fun activities motivating."

"Lulu's HIIT classes fly by with laughter and extreme challenges."

Good to know

1

The gym offers 24-hour access for members.

2

The locker room is always clean and well-maintained.

3

Expect a variety of classes with different levels of difficulty.

15
Crunch Fitness - Woodbridge image 1

Spacious gym with varied equipment including multiple deadlift platforms and squat racks. Atmosphere stays energetic and motivating, with loud music after 6 PM and a welcoming, judge-free vibe. Clean environment supports focused training without interruptions.

Classes with Jay and Zumba sessions keep workouts fun and engaging. Challenges offer a way to bond with others and push limits.

Jay's HIIT classes offer a very challenging and fun group workout experience. Lulu also leads engaging sessions on Tuesdays, keeping the energy high throughout.

People are saying

"This weight lifting gym has all the equipment needed for a solid workout."

"Jay's HIIT classes are fun and push you to your limits."

"The classes with Jay are super fun and rewarding."

Good to know

1

The gym closes at 5pm on weekends.

2

A yearly $65 maintenance fee is charged, regardless of equipment issues.

3

Many machines are often broken, affecting workout options.

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