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JavaScript and .NET Developer Tools

GrapeCity is Now MESCIUS

Same great products.
Same commitment to excellence.

MESCIUS' (pronounced mesh-ē-us) product line provides developers, designers, and architects with the ultimate collection of award-winning JavaScript and .NET grids, reporting, spreadsheets, document APIs, viewers, and mobile controls.

Our tools help to quickly solve problems so you can focus on creativity, innovation, and optimization.

Download 30-Day Free Trials

Not sure what product is right for your project? See below:

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Find the right MESCIUS product by name, use case, or technology:

FIND SOLUTIONS BY PRODUCT NAME

FIND SOLUTIONS BY USE CASE

UI Controls

Document APIs

Reporting Solutions

Grids

Spreadsheets

Why Use Our Products?

Discover the MESCIUS Advantage.

Our award-winning products include spreadsheets and reporting tools, grids, charts, UI components, and APIs for .NET and JavaScript. These resources are meticulously designed to streamline developers' work and enhance their efficiency for both desktop and mobile applications.

Mescius Experience

Over 40 Years of Experience

Our technology teams have the expertise and product knowledge to anticipate your growing development needs.

Mescius Components

Thousands of Solutions

Explore our vast collection of tools built on popular frameworks across major platforms.

Mescius Performance

Optimized Performance

Each control is meticulously built to handle high volumes of data with the smallest footprint to ensure smooth operation.

Mescius Ease of Use

Seamless Integration

Easily integrate our controls into your project, streamlining the process with intuitive tools and industry-leading features.

Mescius Updates

Regular Updates

Stay current with frequent updates to enhance your experience, in addition to our regular release schedules.

Mescius Licensing

Simplified Licensing

Our unique licensing models are simple, transparent, and free from hidden charges to project your cost of ownership easily.

Mescius Demos and Training

Demos and Training

Access extensive demo apps and resources, including how-to videos, documentation, and knowledge base.

Mescius Support

Dedicated Support

We offer the industry's best 24-hour support at various levels: tickets and calls, forums, videos, blogs, KB, and chat.

Product Specific Blogs, Videos, Documentation, Demos and Sample Applications

ActiveReports

Blogs

Videos: .NETJS

Demos: .NETJS

Docs: .NETJS

Webinars

Spread

Blogs

Videos: .NET | JS

Demos: .NET | JS

Docs: .NET | JS

Webinars

Document Solutions

Blogs

Videos

Demos: PDF | Excel | Word | Imaging

Docs: PDF | Excel | Word | Imaging

Webinars

40+

Years of Experience

250K+

Customers and Counting

1.2M+

Commercial Licenses Sold

175+

Countries Worldwide

What Our Customers Say About Us

Microsoft

"When I run into complex problems, I turn to my ComponentOne Studio Enterprise toolbox."

Ken Spencer

MICROSOFT REGIONAL
DIRECTOR - FRAMEWORK MASTERS

Thomson Reuters

"We rely on the functionality of Wijmo Core's Flexgrid in our massive next-generation platform products. Wijmo's modern, full-featured FlexGrid with sophisticated grid manipulations is what you will find at the heart of our workflow."

Aaron Mendez

MANAGER OF THE USER EXPERIENCE,
THOMSON REUTERS

Labstep

"Thanks for providing the best spreadsheet widget in the world, we're very happy customers. Your product has saved us a TON of time relative to other solutions we used in the past."

Jan Domanski

CO-FOUNDER, LABSTEP

Trusted by the World’s Leading Companies

MESCIUS is an award-winning Microsoft Gold Certified Partner and one of the world’s largest providers of .NET and JavaScript developer components.