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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.

The Future at Work: Techstars Workforce Development Demo Day
Thu, Jun 4, 6:00 PM
Boulder · eTown Hall
The Future at Work: Techstars Workforce Development Demo Day
Thu, Jun 4, 6:00 PM
Boulder · eTown Hall
Sales end soon
T. A. Barron -- "Naming Nature"
Tomorrow at 6:30 PM
Boulder · Boulder Bookstore
Sales end soon
T. A. Barron -- "Naming Nature"
Tomorrow at 6:30 PM
Boulder · Boulder Bookstore
Neptune x Raide Bash
Thu, May 28, 7:00 PM
Boulder · Neptune Mountaineering
Neptune x Raide Bash
Thu, May 28, 7:00 PM
Boulder · Neptune Mountaineering
Almost full
The Swoon Society Book Club: May 2026
Wed, May 27, 6:00 PM
Erie · Briggs Street Books and Music
Almost full
The Swoon Society Book Club: May 2026
Wed, May 27, 6:00 PM
Erie · Briggs Street Books and Music
Almost full
lululemon Sculpt + Shop with Arvada Barre
Sun, May 31, 9:30 AM
Broomfield · lululemon, West Flatiron Circle, Broomfield, CO, USA
Almost full
lululemon Sculpt + Shop with Arvada Barre
Sun, May 31, 9:30 AM
Broomfield · lululemon, West Flatiron Circle, Broomfield, CO, USA
Going fast
LUNA Kick off training
Sun, May 31, 8:00 AM
Boulder · 6950 Gross Dam Rd
Going fast
LUNA Kick off training
Sun, May 31, 8:00 AM
Boulder · 6950 Gross Dam Rd
Almost full
The Hummingbird Chronicles: Backyard Tips & Tricks
Saturday at 3:30 PM
Louisville · Louisville Public Library
Almost full
The Hummingbird Chronicles: Backyard Tips & Tricks
Saturday at 3:30 PM
Louisville · Louisville Public Library
Pilots & Pizza Night | Broomfield Campus
Tomorrow at 5:00 PM
Broomfield · McAir Aviation
Pilots & Pizza Night | Broomfield Campus
Tomorrow at 5:00 PM
Broomfield · McAir Aviation
Full Moon Sunrise Hike - Wake-up to Wonder!
Sun, May 31, 4:15 AM
Boulder · Royal Arch Trail Head
Full Moon Sunrise Hike - Wake-up to Wonder!
Sun, May 31, 4:15 AM
Boulder · Royal Arch Trail Head
Full Moon Sunrise Hike - Wake up to Wonder!
Sun, May 31, 4:15 AM
Boulder · Royal Arch Trail Head
Full Moon Sunrise Hike - Wake up to Wonder!
Sun, May 31, 4:15 AM
Boulder · Royal Arch Trail Head
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
Eldorado Canyon State Park BioBlitz Dayz!
Sat, May 30, 9:00 AM
Eldorado Springs · Eldorado Canyon State Park
Eldorado Canyon State Park BioBlitz Dayz!
Sat, May 30, 9:00 AM
Eldorado Springs · Eldorado Canyon State Park
Birth Workers of Boulder Coffee Meet-Up: June!
Mon, Jun 8, 10:00 AM
Louisville · Relish Food Hall // Pickleball
Birth Workers of Boulder Coffee Meet-Up: June!
Mon, Jun 8, 10:00 AM
Louisville · Relish Food Hall // Pickleball
Almost full
Boulder County Private Well Owner Workshop- Nederland 2026
Tue, Jun 2, 6:00 PM
Nederland · Nederland Community Center
Almost full
Boulder County Private Well Owner Workshop- Nederland 2026
Tue, Jun 2, 6:00 PM
Nederland · Nederland Community Center
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
Community Bingo Night & Food Drive
Tomorrow at 6:00 PM
Lafayette · Lafayette Public Library
Sales end soon
Community Bingo Night & Food Drive
Tomorrow at 6:00 PM
Lafayette · Lafayette Public Library
Going fast
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tue, Jun 9, 9:00 AM
Lafayette · Confluence Small Business Collective
Going fast
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tue, Jun 9, 9:00 AM
Lafayette · Confluence Small Business Collective
Going fast
Electronic Recycling Drop-off
Sat, May 30, 9:00 AM
Thornton · Thornton's Infrastructure Maintenance Center
Going fast
Electronic Recycling Drop-off
Sat, May 30, 9:00 AM
Thornton · Thornton's Infrastructure Maintenance Center
Boulder Nova Connect + Elevate: Conscious Leadership
Tue, Jun 2, 5:00 PM
Boulder · Zeal
Boulder Nova Connect + Elevate: Conscious Leadership
Tue, Jun 2, 5:00 PM
Boulder · Zeal
Vinita Prachi Murarka -- "Wisdom Stories of India"
Sat, May 30, 11:00 AM
Boulder · Boulder Bookstore
Vinita Prachi Murarka -- "Wisdom Stories of India"
Sat, May 30, 11:00 AM
Boulder · Boulder Bookstore

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:

The Future at Work: Techstars Workforce Development Demo Day

Neptune x Raide Bash

The Swoon Society Book Club: May 2026

lululemon Sculpt + Shop with Arvada Barre

Which events are currently trending in Boulder?

The trending searches this month in Boulder are:

stand up comedy

Which free events are coming up?

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

Pilots & Pizza Night | Broomfield Campus

Community Bingo Night & Food Drive

T. A. Barron -- "Naming Nature"

The Hummingbird Chronicles: Backyard Tips & Tricks