Introducing G2.ai, the future of software buying.Try now

Top Free Active Learning Tools

Check out our list of free Active Learning Tools. Products featured on this list are the ones that offer a free trial version. As with most free versions, there are limitations, typically time or features.

If you'd like to see more products and to evaluate additional feature options, compare all Active Learning Tools to ensure you get the right product.

View Free Active Learning Tools

G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our scoring methodologies.
5 Active Learning Tools Products Available
View all Active Learning Tools
View all Active Learning Tools
Roboflow
(108)4.7 out of 5
1st Easiest To Use in Active Learning Tools software
Save to My Lists
Entry Level Price:Free
  • Overview
    Expand/Collapse Overview
    • Product Description
    How are these determined?Information
    This description is provided by the seller.

    Roboflow has everything you need to build and deploy computer vision applications. Over 1,000,000 users from businesses of every size — from startups to public companies — use the company's end-to-

    Users
    • Founder
    Industries
    • Computer Software
    • Research
    Market Segment
    • 77% Small-Business
    • 15% Mid-Market
  • What G2 Users Think
    Expand/Collapse What G2 Users Think
    • Verified User in Manufacturing
    UM
    Roboflow has proven to be an excellent tool for accelerating computer vision development, offering a highly intuitive workflow that makes it easy... Read review
    Verified User in Research
    AR
    We used Roboflow for splitting datasets and converting formats, and it worked very well for our research needs. The platform made it simple to... Read review
  • Seller Details
    Expand/Collapse Seller Details
    • Seller Details
    Seller
    Roboflow
    Year Founded
    2019
    HQ Location
    Remote, US
    Twitter
    @roboflow
    12,026 Twitter followers
    LinkedIn® Page
    www.linkedin.com
    91 employees on LinkedIn®
Product Description
How are these determined?Information
This description is provided by the seller.

Roboflow has everything you need to build and deploy computer vision applications. Over 1,000,000 users from businesses of every size — from startups to public companies — use the company's end-to-

Users
  • Founder
Industries
  • Computer Software
  • Research
Market Segment
  • 77% Small-Business
  • 15% Mid-Market
Verified User in Manufacturing
UM
Roboflow has proven to be an excellent tool for accelerating computer vision development, offering a highly intuitive workflow that makes it easy... Read review
Verified User in Research
AR
We used Roboflow for splitting datasets and converting formats, and it worked very well for our research needs. The platform made it simple to... Read review
Seller Details
Seller
Roboflow
Year Founded
2019
HQ Location
Remote, US
Twitter
@roboflow
12,026 Twitter followers
LinkedIn® Page
www.linkedin.com
91 employees on LinkedIn®
Encord
(62)4.8 out of 5
Save to My Lists
Entry Level Price:Contact Us
  • Overview
    Expand/Collapse Overview
    • Product Description
    How are these determined?Information
    This description is provided by the seller.

    Encord is the multimodal data management platform for AI. With Encord, AI teams can easily manage, curate, and label images, videos, audio, documents, text, DICOM, and LiDAR / 3D point cloud files on

    Users
    No information available
    Industries
    • Computer Software
    • Hospital & Health Care
    Market Segment
    • 50% Small-Business
    • 40% Mid-Market
  • What G2 Users Think
    Expand/Collapse What G2 Users Think
    • AH
    I like the ability of task management and automation tools to simplify and optimize complex workflows. Such tools can help increase efficiency and... Read review
    Verified User in Hospital & Health Care
    AH
    -The platform is extremely user-friendly, making it easy for anyone to use. -It offers all the necessary features for performing accurate semantic... Read review
  • Seller Details
    Expand/Collapse Seller Details
    • Seller Details
    Seller
    Encord
    Year Founded
    2020
    HQ Location
    San Francisco, US
    Twitter
    @encord_team
    684 Twitter followers
    LinkedIn® Page
    www.linkedin.com
    127 employees on LinkedIn®
Product Description
How are these determined?Information
This description is provided by the seller.

Encord is the multimodal data management platform for AI. With Encord, AI teams can easily manage, curate, and label images, videos, audio, documents, text, DICOM, and LiDAR / 3D point cloud files on

Users
No information available
Industries
  • Computer Software
  • Hospital & Health Care
Market Segment
  • 50% Small-Business
  • 40% Mid-Market
AH
I like the ability of task management and automation tools to simplify and optimize complex workflows. Such tools can help increase efficiency and... Read review
Verified User in Hospital & Health Care
AH
-The platform is extremely user-friendly, making it easy for anyone to use. -It offers all the necessary features for performing accurate semantic... Read review
Seller Details
Seller
Encord
Year Founded
2020
HQ Location
San Francisco, US
Twitter
@encord_team
684 Twitter followers
LinkedIn® Page
www.linkedin.com
127 employees on LinkedIn®

G2 Deals

Buying software just got smarter. And cheaper.

This is how G2 Deals can help you:

  • Easily shop for curated – and trusted – software
  • Own your own software buying journey
  • Discover exclusive deals on software
See Exclusive Offers
Labelbox
(47)4.5 out of 5
View top Consulting Services for Labelbox
Save to My Lists
  • Overview
    Expand/Collapse Overview
    • Product Description
    How are these determined?Information
    This description is provided by the seller.

    Labelbox is the leading data-centric AI platform for building intelligent applications. Teams looking to capitalize on the latest advances in generative AI and LLMs use the Labelbox platform to inject

    Users
    No information available
    Industries
    • Computer Software
    • Information Technology and Services
    Market Segment
    • 47% Small-Business
    • 38% Mid-Market
  • What G2 Users Think
    Expand/Collapse What G2 Users Think
    • Alim B.
    AB
    User friendly and less technicality involved Read review
    Rohith S.
    RS
    While using Lalbebox presented active learning tool, it improved my working efficiency on working with ML projects. I am able to focus on specific... Read review
  • Seller Details
    Expand/Collapse Seller Details
    • Seller Details
    Seller
    Labelbox
    Year Founded
    2018
    HQ Location
    San Francisco, California
    Twitter
    @labelbox
    3,164 Twitter followers
    LinkedIn® Page
    www.linkedin.com
    356 employees on LinkedIn®
Product Description
How are these determined?Information
This description is provided by the seller.

Labelbox is the leading data-centric AI platform for building intelligent applications. Teams looking to capitalize on the latest advances in generative AI and LLMs use the Labelbox platform to inject

Users
No information available
Industries
  • Computer Software
  • Information Technology and Services
Market Segment
  • 47% Small-Business
  • 38% Mid-Market
Alim B.
AB
User friendly and less technicality involved Read review
Rohith S.
RS
While using Lalbebox presented active learning tool, it improved my working efficiency on working with ML projects. I am able to focus on specific... Read review
Seller Details
Seller
Labelbox
Year Founded
2018
HQ Location
San Francisco, California
Twitter
@labelbox
3,164 Twitter followers
LinkedIn® Page
www.linkedin.com
356 employees on LinkedIn®
Voxel51
(14)4.3 out of 5
Save to My Lists
  • Overview
    Expand/Collapse Overview
    • Product Description
    How are these determined?Information
    This description is provided by the seller.

    FiftyOne by Voxel51 - the most powerful visual AI and computer vision data platform. Without the right data, even the smartest AI models fail. FiftyOne gives machine learning engineers the power to

    Users
    No information available
    Industries
    • Computer Software
    Market Segment
    • 79% Small-Business
    • 21% Mid-Market
  • What G2 Users Think
    Expand/Collapse What G2 Users Think
    • AP
    Voxel51's merit essentially boils down to cutting the CV development period by a pretty large margin. It offers these functionalities from data... Read review
    Aswini Kumar S.
    AS
    Free, practical webinars: They regularly host 90-minute beginner‑friendly workshops like the "Getting Started with FiftyOne" (June 18, 2025), where... Read review
  • Seller Details
    Expand/Collapse Seller Details
    • Seller Details
    Seller
    Voxel51
    Year Founded
    2018
    HQ Location
    Ann Arbor, US
    Twitter
    @Voxel51
    1,580 Twitter followers
    LinkedIn® Page
    www.linkedin.com
    59 employees on LinkedIn®
Product Description
How are these determined?Information
This description is provided by the seller.

FiftyOne by Voxel51 - the most powerful visual AI and computer vision data platform. Without the right data, even the smartest AI models fail. FiftyOne gives machine learning engineers the power to

Users
No information available
Industries
  • Computer Software
Market Segment
  • 79% Small-Business
  • 21% Mid-Market
AP
Voxel51's merit essentially boils down to cutting the CV development period by a pretty large margin. It offers these functionalities from data... Read review
Aswini Kumar S.
AS
Free, practical webinars: They regularly host 90-minute beginner‑friendly workshops like the "Getting Started with FiftyOne" (June 18, 2025), where... Read review
Seller Details
Seller
Voxel51
Year Founded
2018
HQ Location
Ann Arbor, US
Twitter
@Voxel51
1,580 Twitter followers
LinkedIn® Page
www.linkedin.com
59 employees on LinkedIn®
iMerit Ango Hub Multimodal AI Platform
(12)4.8 out of 5
Save to My Lists
Free trial available
  • Overview
    Expand/Collapse Overview
    • Product Description
    How are these determined?Information
    This description is provided by the seller.

    For organizations driving advancements in traditional AI and generative AI, iMerit delivers comprehensive, software-delivered solutions that encompass high-quality data annotation, enrichment, and mod

    Users
    No information available
    Industries
    No information available
    Market Segment
    • 50% Small-Business
    • 25% Enterprise
  • What G2 Users Think
    Expand/Collapse What G2 Users Think
    • David B.
    DB
    When we found that a small feature would help our workflow, we emailed Ango but thought nothing of it. The next day, the feature we wanted was... Read review
    AV
    We’ve been shopping around for an image labeling software for a while and settled on Ango Hub. We chose it because of its great support for complex... Read review
  • Seller Details
    Expand/Collapse Seller Details
    • Seller Details
    Seller
    iMerit Technology
    Year Founded
    2012
    HQ Location
    San Jose, US
    Twitter
    @iMeritDigital
    1,437 Twitter followers
    LinkedIn® Page
    www.linkedin.com
    6,415 employees on LinkedIn®
Product Description
How are these determined?Information
This description is provided by the seller.

For organizations driving advancements in traditional AI and generative AI, iMerit delivers comprehensive, software-delivered solutions that encompass high-quality data annotation, enrichment, and mod

Users
No information available
Industries
No information available
Market Segment
  • 50% Small-Business
  • 25% Enterprise
David B.
DB
When we found that a small feature would help our workflow, we emailed Ango but thought nothing of it. The next day, the feature we wanted was... Read review
AV
We’ve been shopping around for an image labeling software for a while and settled on Ango Hub. We chose it because of its great support for complex... Read review
Seller Details
Seller
iMerit Technology
Year Founded
2012
HQ Location
San Jose, US
Twitter
@iMeritDigital
1,437 Twitter followers
LinkedIn® Page
www.linkedin.com
6,415 employees on LinkedIn®