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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.

An Evening with Leo Houlding
Thu, Sep 3, 6:30 PM
Majestic Heights · Neptune Mountaineering
An Evening with Leo Houlding
Thu, Sep 3, 6:30 PM
Majestic Heights · Neptune Mountaineering
Almost full
The Colorado River's Uncertain Water Future Explained
Tomorrow at 6:00 PM
Main Campus · Wolf Law Building
Almost full
The Colorado River's Uncertain Water Future Explained
Tomorrow at 6:00 PM
Main Campus · Wolf Law Building
Almost full
Colorado Tap House Adult Book Fair
Sun, Aug 30, 12:00 PM
Arvada · Colorado Tap House
Almost full
Colorado Tap House Adult Book Fair
Sun, Aug 30, 12:00 PM
Arvada · Colorado Tap House
Almost full
Chasing Time: climate documentary screening and Q&A
Thu, Sep 3, 5:00 PM
East Campus · Sustainability, Energy, and Environment Community (SEEC)
Almost full
Chasing Time: climate documentary screening and Q&A
Thu, Sep 3, 5:00 PM
East Campus · Sustainability, Energy, and Environment Community (SEEC)
Sales end soon
Makers Lab
Tomorrow at 10:00 AM
Willow Run · 1575 W 124th Ave suite 110
Sales end soon
Makers Lab
Tomorrow at 10:00 AM
Willow Run · 1575 W 124th Ave suite 110
Sales end soon
Good Grief: Pain, Pleasure, and Possibilities
Today at 6:30 PM
Central Boulder · Canyon Theater - Boulder Public Library
Sales end soon
Good Grief: Pain, Pleasure, and Possibilities
Today at 6:30 PM
Central Boulder · Canyon Theater - Boulder Public Library
Going fast
WRISE CO: Happy Hour and Game night at Scout Clean Energy
Today at 5:00 PM
Twenty Ninth Street · Scout Clean Energy
Going fast
WRISE CO: Happy Hour and Game night at Scout Clean Energy
Today at 5:00 PM
Twenty Ninth Street · Scout Clean Energy
Worth The Trip 2
Thu, Sep 3, 5:30 PM
Irvington · Bounce Empire
Worth The Trip 2
Thu, Sep 3, 5:30 PM
Irvington · Bounce Empire
Boulderthon 5K and 10K Course Preview
Sat, Aug 29, 9:00 AM
Crossroads · Fleet Feet Boulder (Boulder Running Company)
Boulderthon 5K and 10K Course Preview
Sat, Aug 29, 9:00 AM
Crossroads · Fleet Feet Boulder (Boulder Running Company)
Gather & Glow | 5th Annual Spa Open House at BVPS
Fri, Sep 18, 3:00 PM
Whittier · Boulder Valley Plastic Surgery
Gather & Glow | 5th Annual Spa Open House at BVPS
Fri, Sep 18, 3:00 PM
Whittier · Boulder Valley Plastic Surgery
City of Boulder Climate Resilient Landscape Showcase Award Show
Sat, Sep 12, 6:00 PM
Central Boulder · Canyon Theater - Boulder Public Library
City of Boulder Climate Resilient Landscape Showcase Award Show
Sat, Sep 12, 6:00 PM
Central Boulder · Canyon Theater - Boulder Public Library
Almost full
Check Your Blindspots
Fri, Aug 28, 7:00 PM
Pearl Street Mall · The Brand Studios
Almost full
Check Your Blindspots
Fri, Aug 28, 7:00 PM
Pearl Street Mall · The Brand Studios
Almost full
The Helix Experience
Today at 5:00 PM
Boulder · K2 Dermatology
Almost full
The Helix Experience
Today at 5:00 PM
Boulder · K2 Dermatology
Almost full
Lily Williams -- "Exposures," with Holly Grant
Today at 6:30 PM
Pearl Street Mall · Boulder Bookstore
Almost full
Lily Williams -- "Exposures," with Holly Grant
Today at 6:30 PM
Pearl Street Mall · Boulder Bookstore
Going fast
2026 Celebrate Longmont
Wed, Sep 9, 5:00 PM
Longmont · Summit Tacos
Going fast
2026 Celebrate Longmont
Wed, Sep 9, 5:00 PM
Longmont · Summit Tacos
Sales end soon
Discover LifeWave - Denver
Fri, Aug 28, 7:00 PM
Interpark · The Westin Westminster
Sales end soon
Discover LifeWave - Denver
Fri, Aug 28, 7:00 PM
Interpark · The Westin Westminster
Under New Management Summer Bash at Winner's Circle!
Sat, Aug 29, 1:00 PM
Saint Vrain Meadows · 2251 Ken Pratt Blvd ste a
Under New Management Summer Bash at Winner's Circle!
Sat, Aug 29, 1:00 PM
Saint Vrain Meadows · 2251 Ken Pratt Blvd ste a
Stargazing & Silent Disco at Eldorado Canyon State Park
Fri, Aug 28, 7:30 PM
Eldorado Springs Canon · Eldorado Canyon State Park Visitor Center
Stargazing & Silent Disco at Eldorado Canyon State Park
Fri, Aug 28, 7:30 PM
Eldorado Springs Canon · Eldorado Canyon State Park Visitor Center
Sales end soon
Lucky Strike Westminster Lucky Launch Party!
Sunday at 12:00 PM
Semper · Lucky Strike Westminster
Sales end soon
Lucky Strike Westminster Lucky Launch Party!
Sunday at 12:00 PM
Semper · Lucky Strike Westminster
Lunges & Lattes: Outdoor Pilates at East & Co.
Sat, Sep 12, 9:00 AM
Canterbury Acres · East & Co.
Lunges & Lattes: Outdoor Pilates at East & Co.
Sat, Sep 12, 9:00 AM
Canterbury Acres · East & Co.

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:

An Evening with Leo Houlding

The Colorado River's Uncertain Water Future Explained

Colorado Tap House Adult Book Fair

Chasing Time: climate documentary screening and Q&A

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:

WRISE CO: Happy Hour and Game night at Scout Clean Energy

The Helix Experience

Good Grief: Pain, Pleasure, and Possibilities

Lily Williams -- "Exposures," with Holly Grant