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Free Events and Things to do in Boulder, CO

Search for something you love or check out popular events in your area.

Denver RUG - June 17th, 2026
Wed, Jun 17, 4:00 PM
Broomfield · 390 Interlocken Crescent #100
Denver RUG - June 17th, 2026
Wed, Jun 17, 4:00 PM
Broomfield · 390 Interlocken Crescent #100
June 10th Broomfield Bonfire
Wednesday at 6:00 PM
Broomfield · The Chateaux At Fox Meadows
June 10th Broomfield Bonfire
Wednesday at 6:00 PM
Broomfield · The Chateaux At Fox Meadows
Almost full
Queer Romance Book Club
Wednesday at 6:00 PM
Boulder · 1909 9th St
Almost full
Queer Romance Book Club
Wednesday at 6:00 PM
Boulder · 1909 9th St
Sales end soon
Birth Workers of Boulder Coffee Meet-Up: June!
Monday at 11:00 AM
Louisville · Relish Food Hall // Pickleball
Sales end soon
Birth Workers of Boulder Coffee Meet-Up: June!
Monday at 11:00 AM
Louisville · Relish Food Hall // Pickleball
Trek 50th anniversary celebration | Boulder
Sat, Jun 20, 9:00 AM
Boulder · Trek Bicycle Boulder
Trek 50th anniversary celebration | Boulder
Sat, Jun 20, 9:00 AM
Boulder · Trek Bicycle Boulder
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wed, Jun 24, 6:30 PM
Boulder · Boulder Bookstore
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wed, Jun 24, 6:30 PM
Boulder · Boulder Bookstore
Almost full
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tuesday at 9:00 AM
Lafayette · Confluence Small Business Collective
Almost full
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tuesday at 9:00 AM
Lafayette · Confluence Small Business Collective
Latte Art Throwdown at O.W.L Coffee Roasters
Fri, Jun 19, 6:00 PM
Boulder · 2355 30th St
Latte Art Throwdown at O.W.L Coffee Roasters
Fri, Jun 19, 6:00 PM
Boulder · 2355 30th St
Going fast
Spartan Demo Day | Denver Area Campus
Saturday at 10:00 AM
Broomfield · Spartan College of Aeronautics and Technology Denver Area Campus
Going fast
Spartan Demo Day | Denver Area Campus
Saturday at 10:00 AM
Broomfield · Spartan College of Aeronautics and Technology Denver Area Campus
Plant Forward Boulder Potluck: Dine with a Dietician
Sun, Jun 21, 3:00 PM
Boulder · NoBo Library - Boulder Public Library District
Plant Forward Boulder Potluck: Dine with a Dietician
Sun, Jun 21, 3:00 PM
Boulder · NoBo Library - Boulder Public Library District
History Happy Hour - Louisville Trivia
Tue, Jun 16, 6:00 PM
Louisville · 1071 Courtesy Rd
History Happy Hour - Louisville Trivia
Tue, Jun 16, 6:00 PM
Louisville · 1071 Courtesy Rd
Coffee & Convo
Sat, Jun 20, 10:00 AM
Lafayette · East Simpson Coffee Company (The Cottage next door)
Coffee & Convo
Sat, Jun 20, 10:00 AM
Lafayette · East Simpson Coffee Company (The Cottage next door)
Almost full
Boulder Career Fair
Wed, Aug 26, 9:30 AM
Boulder · Hilton
Almost full
Boulder Career Fair
Wed, Aug 26, 9:30 AM
Boulder · Hilton
Ancestry Pt. 1 – Census
Sat, Jun 13, 2:00 PM
Louisville · Louisville Public Library
Ancestry Pt. 1 – Census
Sat, Jun 13, 2:00 PM
Louisville · Louisville Public Library
Retirement Planning University - CU Boulder - June 2026
Wed, Jun 24, 6:00 PM
Boulder · Dal Ward Athletic Center
Retirement Planning University - CU Boulder - June 2026
Wed, Jun 24, 6:00 PM
Boulder · Dal Ward Athletic Center
Cleaning Up Mt. Everest: A Reflection on High-Altitude Stewardship
Fri, Jun 12, 7:00 PM
Boulder · Neptune Mountaineering
Cleaning Up Mt. Everest: A Reflection on High-Altitude Stewardship
Fri, Jun 12, 7:00 PM
Boulder · Neptune Mountaineering
Sales end soon
FREE GRAND REOPENING Yoga with Sasha at prAna Boulder
Sunday at 10:00 AM
Boulder · prAna Boulder
Sales end soon
FREE GRAND REOPENING Yoga with Sasha at prAna Boulder
Sunday at 10:00 AM
Boulder · prAna Boulder
Almost full
Boulder County Private Well Owner Workshop- Nederland 2026
Wed, Jun 17, 6:00 PM
Nederland · Nederland Community Center
Almost full
Boulder County Private Well Owner Workshop- Nederland 2026
Wed, Jun 17, 6:00 PM
Nederland · Nederland Community Center
Almost full
Pulling for Louisville-Aquarius
Thu, Jun 18, 5:00 PM
Louisville · Aquarius Trailhead, Louisville
Almost full
Pulling for Louisville-Aquarius
Thu, Jun 18, 5:00 PM
Louisville · Aquarius Trailhead, Louisville
Almost full
The Wellness Home Experience-Clean Choices for healthier Living
Thu, Jun 11, 12:00 PM
Boulder · Confluence Kitchen & Bath
Almost full
The Wellness Home Experience-Clean Choices for healthier Living
Thu, Jun 11, 12:00 PM
Boulder · Confluence Kitchen & Bath

Trends in Boulder

Explore more trends

Explore more trends

Frequently asked questions about Boulder

What are the best free events to attend?

According to Eventbrite, the best free events are:

Denver RUG - June 17th, 2026

June 10th Broomfield Bonfire

Queer Romance Book Club

Trek 50th anniversary celebration | Boulder

Which events are currently trending in Boulder?

The trending searches this month in Boulder are:

memorial day weekend events

stand up comedy

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Spartan Demo Day | Denver Area Campus

FREE GRAND REOPENING Yoga with Sasha at prAna Boulder

Birth Workers of Boulder Coffee Meet-Up: June!

Renegade Motherhood Mixer for Moms in Business - Lafayette