Top Free Prototyping Software
Check out our list of free Prototyping Software. 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 Prototyping Software to ensure you get the right product.
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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.
19 Prototyping Products Available
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By Sketch B.V.
(1,209)4.5 out of 5
2nd Easiest To Use in Prototyping software
View top Consulting Services for Sketch
Entry Level Price:$12.00
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Sketch puts the focus back on you and your work. We’re not a do-everything product. We’re a toolkit for design, prototyping, and collaboration — made by designers, for designers. Create, prototype,
Users
- Product Designer
- UX Designer
Industries
- Design
- Computer Software
Market Segment
- 53% Small-Business
- 29% Mid-Market
Sketch features and usability ratings that predict user satisfaction
9.0
Has the product been a good partner in doing business?
Average: 8.6
9.0
Editing Tools
Average: 8.6
8.8
Framework Libraries
Average: 8.1
8.8
Modeling Tools
Average: 8.3
User Sentiment
How are these determined?
These insights are written by G2's Market Research team, using actual user reviews for Sketch, left between October 2021 and August 2022.
- Reviewers like the ability to add third-party plugins and apps to Sketch to customize the functionality.
- Reviewers have called out the speed of creating useable prototypes and wireframes using the tool.
- Some reviewers have mentioned bugs with some recently released features, but the company responds quickly with patches.
HH
Super easy to collaborate on a project; easy to switch between mockups, wireframes, and symbol panels, easy to prototype websites Read review
SC
Sketch is a great design tool and helps me create multiple design options to solve a complex business problem creatively. The prototyping feature... Read review
Seller Details
Twitter
@sketch163,641 Twitter followers
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Axure drives innovative digital experiences. Our UX platform empowers the collaboration needed to bridge the gaps between design, development, customers, and your business. Product obsessed, we’ve dev
Users
- UX Designer
- User Experience Designer
Industries
- Information Technology and Services
- Design
Market Segment
- 36% Enterprise
- 35% Small-Business
Axure RP features and usability ratings that predict user satisfaction
8.4
Has the product been a good partner in doing business?
Average: 8.6
8.3
Editing Tools
Average: 8.6
8.3
Framework Libraries
Average: 8.1
7.5
Modeling Tools
Average: 8.3
DK
This tool has been a blessing for me.
I work for a product which requires fairly quick changes and Working as a Business analyst The workflows... Read review
CI
Very powerful prototyping tool, allow you to embed logic and transitions into your prototype, and make it a real functional prototype. You can have... Read review
Seller Details
Twitter
@axurerp11,538 Twitter followers
Entry Level Price:$0
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
UXPin is the design tool ideal for interactive prototyping, design systems and documentation. Some of our latest features include: Variables, conditional interactions, expressions, interactive states
Users
- UX Designer
- Product Manager
Industries
- Computer Software
- Information Technology and Services
Market Segment
- 49% Small-Business
- 41% Mid-Market
UXPin features and usability ratings that predict user satisfaction
8.6
Has the product been a good partner in doing business?
Average: 8.6
10.0
Editing Tools
Average: 8.6
10.0
Framework Libraries
Average: 8.1
10.0
Modeling Tools
Average: 8.3
WD
UXPin is a great tool that our whole team uses to prototype and map out complex manufacturing processes with our customers. On any production floor... Read review
UI
Creation of highly interactive prototypes is quick and intuitive -unlike Invision and Figma which results in multiple unintelligible connection... Read review
Seller Details
Twitter
@uxpin39,974 Twitter followers
Entry Level Price:Starting at $24.00
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Proto.io is an industry-leading prototyping platform. It gives designers, entrepreneurs, developers, and anyone with a great idea the power to create fully-interactive web and mobile prototypes of any
Users
No information available
Industries
- Information Technology and Services
- Computer Software
Market Segment
- 52% Small-Business
- 27% Mid-Market
Proto.io features and usability ratings that predict user satisfaction
7.3
Has the product been a good partner in doing business?
Average: 8.6
8.3
Editing Tools
Average: 8.6
8.7
Framework Libraries
Average: 8.1
8.7
Modeling Tools
Average: 8.3
AE
Simple interface, low cost, powerful prototype builder, minimal coding knowledge required Read review
JB
the prototyping options available is great Read review
Seller Details
Twitter
@protoio33,841 Twitter followers
Entry Level Price:Starts at $19/mo user
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
iRise is the #1 wireframe, prototyping, and integrated agile requirements management tool - including real-time integrations with the top ALM tools like Jira and Azure Devops. All in one simple, sec
Users
No information available
Industries
- Information Technology and Services
Market Segment
- 62% Enterprise
- 21% Small-Business
iRise features and usability ratings that predict user satisfaction
8.5
Has the product been a good partner in doing business?
Average: 8.6
0.0
No information available
0.0
No information available
0.0
No information available
JG
The logic piece was pretty cool, but that's it. Read review
UH
A picture is worth a thousand words. This tool makes it so much easier to validate business/system requirements, compared to traditional methods,... Read review
Seller Details
Twitter
@iRiseTeam996 Twitter followers
Entry Level Price:Free
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
ProtoPie is the Number 1 Advanced prototyping tool for turning your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, IoT and custom hardware. We empower designers to cre
Users
No information available
Industries
- Design
Market Segment
- 54% Small-Business
- 38% Mid-Market
ProtoPie features and usability ratings that predict user satisfaction
10.0
Has the product been a good partner in doing business?
Average: 8.6
5.8
Editing Tools
Average: 8.6
5.0
Framework Libraries
Average: 8.1
6.7
Modeling Tools
Average: 8.3
TK
The walkthroughs and resources for newbies are great. The partnership usage alongside XD is very good. I find the two are a good solution for your... Read review
UD
Performance, fast learning curve, and integration with other tools. Read review
Seller Details
Twitter
@protopieapp9,449 Twitter followers
Entry Level Price:Free
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Anima is an AI-powered design-to-code platform: Designers can create fully responsive prototypes that look and work exactly like the finished product, and publish websites and apps. Developers can shi
Users
No information available
Industries
- Design
- Information Technology and Services
Market Segment
- 82% Small-Business
- 9% Mid-Market
Anima features and usability ratings that predict user satisfaction
8.7
Has the product been a good partner in doing business?
Average: 8.6
8.7
Editing Tools
Average: 8.6
8.1
Framework Libraries
Average: 8.1
8.0
Modeling Tools
Average: 8.3
UC
The app is fairly easy to use for small design projects. I was able to use it for quick website projects with a high turnover rate. Read review
NS
AnimaApp is a design tool for developing and prototyping responsive websites in HTML5, CSS3, and JavaScript. It is a high-fidelity prototype that... Read review
Seller Details
Twitter
@AnimaApp8,614 Twitter followers
Entry Level Price:$1,595.00
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
App Builder™ software is a cloud-based WYSIWYG drag & drop tool that eliminates the complexity of user interface design and development so you can build and deliver business applications 80% faste
Users
No information available
Industries
- Computer Software
- Information Technology and Services
Market Segment
- 58% Small-Business
- 27% Enterprise
App Builder features and usability ratings that predict user satisfaction
8.9
Has the product been a good partner in doing business?
Average: 8.6
10.0
Editing Tools
Average: 8.6
10.0
Framework Libraries
Average: 8.1
8.3
Modeling Tools
Average: 8.3
NE
I like the UI design it's very ease to use Read review
AC
The primary benefit of App Builder is the ease and speed of use. This was effectively demonstrated almost immediately in my personal testing. Read review
Seller Details
HQ Location
Cranbury, NJTwitter
@infragistics38,417 Twitter followers
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Fluid UI is the world's #1 Online Prototyping and Wireframing tool - for Desktop and Mobile.
Users
No information available
Industries
No information available
Market Segment
- 59% Small-Business
- 36% Mid-Market
Fluid UI features and usability ratings that predict user satisfaction
8.8
Has the product been a good partner in doing business?
Average: 8.6
0.0
No information available
0.0
No information available
0.0
No information available
IT
I like a few features of Fluid UI such as widgets that are highly editable, built-in libraries for wearables are very useful, and the cure project... Read review
UG
I like the ease-of-use with this platform. It offers many options - even with a free account - that allows you create wire framing. Read review
Seller Details
Twitter
@FluidUI1,493 Twitter followers
By Builder.ai
(63)4.1 out of 5
Optimized for quick response
11th Easiest To Use in Prototyping software
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Builder.ai® pushes the boundaries to help everyone unlock their human potential. We do this by making our products simple, transparent, delightful and above all user-friendly; with Builder.ai anyone c
Users
- Founder
Industries
- Information Technology and Services
- Computer Software
Market Segment
- 78% Small-Business
- 21% Mid-Market
Builder.ai features and usability ratings that predict user satisfaction
7.9
Has the product been a good partner in doing business?
Average: 8.6
8.8
Editing Tools
Average: 8.6
8.6
Framework Libraries
Average: 8.1
8.5
Modeling Tools
Average: 8.3
SN
- Feature-based fixed pricing allowing for cost clarity up front
- Great project management support from Builder account manager
- Getting the... Read review
AF
There is not much other initial easiness of the studio. Read review
Seller Details
HQ Location
London, EnglandTwitter
@Builderai3,066 Twitter followers
Entry Level Price:Free
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Antetype is advanced prototyping for UX designers: Truly-responsive layouts, elements synchronization & all-possible interactions. With those features, the prototype you build will feel like the f
Users
No information available
Industries
No information available
Market Segment
- 70% Small-Business
- 20% Enterprise
Antetype features and usability ratings that predict user satisfaction
5.8
Has the product been a good partner in doing business?
Average: 8.6
8.3
Editing Tools
Average: 8.6
8.9
Framework Libraries
Average: 8.1
9.4
Modeling Tools
Average: 8.3
UR
Truly flexible layouts & interactions to end all static‑screen‑discussions Read review
SV
It helps to create the best Prototype for the people who want to know more about UI Read review
Seller Details
Year Founded
2000HQ Location
Saarbrücken, Saarland
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Mockplus is a web-based collaborative design platform which connects designers, product managers and developers, built for making design faster and easier.
Users
No information available
Industries
No information available
Market Segment
- 80% Small-Business
- 13% Mid-Market
Mockplus features and usability ratings that predict user satisfaction
6.7
Has the product been a good partner in doing business?
Average: 8.6
0.0
No information available
0.0
No information available
0.0
No information available
DK
Mockplus is not like other UX tool, it offers the most detailed ways to bridge the design team, e.g. there are over five different ways for leaving... Read review
UD
I like that you can quickly create prototypes for web and mobile apps using Mockplus. There's a lot of templates that you can choose from and... Read review
Seller Details
Twitter
@Mockplus5,521 Twitter followers
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Crank Storyboard is GUI Design and Development software that enables engineers and designers to create optimized GUIs for embedded devices rapidly and with ease. So much so that device manufacturers
Users
No information available
Industries
No information available
Market Segment
- 46% Small-Business
- 31% Enterprise
Storyboard features and usability ratings that predict user satisfaction
9.2
Has the product been a good partner in doing business?
Average: 8.6
5.0
Editing Tools
Average: 8.6
3.3
Framework Libraries
Average: 8.1
3.3
Modeling Tools
Average: 8.3
UC
Crank Storyboard was created by designer's for developers! At some stage in your UI Delivery Pipeline the non-technical design team is going to... Read review
DT
Very user friendly and no specific expertise needed to use this GUI building tool. It has all the necessary features to build amazing UI. It also... Read review
Seller Details
Seller
Crank SoftwareYear Founded
2007HQ Location
Ottawa, Ontario
Entry Level Price:Free
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Penpot is the web-based open-source design tool for design & code Collaboration. The only one that allows a true and full interaction between designers and developers. Designers can create stunni
Users
No information available
Industries
No information available
Market Segment
- 64% Small-Business
- 27% Mid-Market
Penpot features and usability ratings that predict user satisfaction
8.3
Has the product been a good partner in doing business?
Average: 8.6
8.3
Editing Tools
Average: 8.6
7.2
Framework Libraries
Average: 8.1
8.3
Modeling Tools
Average: 8.3
UA
Has all the basics you would expect from a UX tool: artboards, components, interactions, and more!
And it allows collaboration and self-hosting! Read review
RC
Penpot really impressed me. And the mindset of open source! Would love to see more projects like this, and now that Figma has been acquired by... Read review
Seller Details
Twitter
@kaleidosnet3,425 Twitter followers
Entry Level Price:Free
- Overview
- User Satisfaction
- What G2 Users Think
- Seller Details
Product Description
How are these determined?
This description is provided by the seller.
Visily is the easiest and most powerful wireframe software that enables teams, regardless of size and skills, to brainstorm and create beautiful app wireframes. Through an intuitive interface, rich UI
Users
No information available
Industries
No information available
Market Segment
- 60% Enterprise
- 20% Mid-Market
Visily features and usability ratings that predict user satisfaction
0.0
No information available
8.8
Editing Tools
Average: 8.6
7.9
Framework Libraries
Average: 8.1
7.5
Modeling Tools
Average: 8.3
UC
Ease of Use: As someone who knows all about technology and is used to fast-paced and intuitive interfaces, you might find Visily.ai's drag-and-drop... Read review
UI
It is very quick when come to prototype creation and helps better communicating my design ideas to other collaborative teams. It's AI assistance in... Read review
Seller Details
Seller
Visily Inc.HQ Location
Atlanta, GATwitter
@visilyai2,850 Twitter followers
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