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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.

Almost full
Day 3 | Nikon Tour Denver | NIKKOR Z LENS DAY - Evening Sessions
Tomorrow at 5:00 PM
Boulder · Boal Property
Almost full
Day 3 | Nikon Tour Denver | NIKKOR Z LENS DAY - Evening Sessions
Tomorrow at 5:00 PM
Boulder · Boal Property
Almost full
Retirement Planning University - CU Boulder - June 2026
Wednesday at 6:00 PM
Boulder · Dal Ward Athletic Center
Almost full
Retirement Planning University - CU Boulder - June 2026
Wednesday at 6:00 PM
Boulder · Dal Ward Athletic Center
Going fast
Music & Magic You Can Dig
Tue, Jun 30, 10:15 AM
Louisville · Steinbaugh Pavilion
Going fast
Music & Magic You Can Dig
Tue, Jun 30, 10:15 AM
Louisville · Steinbaugh Pavilion
Sales end soon
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wednesday at 6:30 PM
Boulder · Boulder Bookstore
Sales end soon
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wednesday at 6:30 PM
Boulder · Boulder Bookstore
Going fast
The Great Dino Rodeo
Thu, Jul 2, 10:15 AM
Louisville · Steinbaugh Pavilion
Going fast
The Great Dino Rodeo
Thu, Jul 2, 10:15 AM
Louisville · Steinbaugh Pavilion
Sales end soon
Preparing our National Parks for the impacts of extreme weather events
Wednesday at 7:30 PM
Boulder · Frasier Retirement Community
Sales end soon
Preparing our National Parks for the impacts of extreme weather events
Wednesday at 7:30 PM
Boulder · Frasier Retirement Community
Sales end soon
Pack Hacks w/ Neptune & Hyperlite
Thursday at 7:00 PM
Boulder · Neptune Mountaineering
Sales end soon
Pack Hacks w/ Neptune & Hyperlite
Thursday at 7:00 PM
Boulder · Neptune Mountaineering
Ancestry Pt. 2 – Vital Records
Sat, Jun 27, 2:00 PM
Louisville · Louisville Public Library
Ancestry Pt. 2 – Vital Records
Sat, Jun 27, 2:00 PM
Louisville · Louisville Public Library
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
Sales end soon
Colorado Business Appreciation Social
Tuesday at 3:00 PM
Boulder · Upslope Brewing Company
Sales end soon
Colorado Business Appreciation Social
Tuesday at 3:00 PM
Boulder · Upslope Brewing Company
Sales end soon
Colorado Business Appreciation Social
Tuesday at 3:00 PM
Boulder · Upslope Brewing Company
Sales end soon
Colorado Business Appreciation Social
Tuesday at 3:00 PM
Boulder · Upslope Brewing Company
Be Love Summit Longmont Kickoff
Thu, Jul 9, 7:00 PM
Longmont · Longmont Theatre Company
Be Love Summit Longmont Kickoff
Thu, Jul 9, 7:00 PM
Longmont · Longmont Theatre Company
Vibram Tester Team Presents: Flatiron Scrambling
Friday at 6:00 PM
Boulder · Vibram Boulder
Vibram Tester Team Presents: Flatiron Scrambling
Friday at 6:00 PM
Boulder · Vibram Boulder
Just added
Stories in the Park: Louisville Cottonwood Park
Fri, Jul 3, 10:15 AM
Louisville · Cottonwood Park
Just added
Stories in the Park: Louisville Cottonwood Park
Fri, Jul 3, 10:15 AM
Louisville · Cottonwood Park
Burnout To Backbone
Tuesday at 6:30 PM
Boulder · Network Wellness Center
Burnout To Backbone
Tuesday at 6:30 PM
Boulder · Network Wellness Center
Sales end soon
Eldorado Canyon History Hike
Thursday at 6:00 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Sales end soon
Eldorado Canyon History Hike
Thursday at 6:00 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Sales end soon
Plant Forward Boulder Potluck: Dine with a Dietician
Tomorrow at 3:00 PM
Boulder · NoBo Library - Boulder Public Library District
Sales end soon
Plant Forward Boulder Potluck: Dine with a Dietician
Tomorrow at 3:00 PM
Boulder · NoBo Library - Boulder Public Library District
Almost full
Stamping Pendant - Mini Workshop
Thursday at 2:30 PM
Louisville · Louisville Public Library
Almost full
Stamping Pendant - Mini Workshop
Thursday at 2:30 PM
Louisville · Louisville Public Library
Going fast
Eldorado Canyon State Park: Lavender Hike
Sun, Jul 12, 5:30 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Going fast
Eldorado Canyon State Park: Lavender Hike
Sun, Jul 12, 5:30 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Broken Bone Bathtub: The Documentary | Boulder
Thu, Jul 16, 6:00 PM
Boulder · Canyon Theater - Boulder Public Library
Broken Bone Bathtub: The Documentary | Boulder
Thu, Jul 16, 6:00 PM
Boulder · Canyon Theater - Boulder Public Library

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:

Retirement Planning University - CU Boulder - June 2026

Music & Magic You Can Dig

Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"

The Great Dino Rodeo

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:

Plant Forward Boulder Potluck: Dine with a Dietician

Day 3 | Nikon Tour Denver | NIKKOR Z LENS DAY - Evening Sessions

Colorado Business Appreciation Social

Colorado Business Appreciation Social