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The democratization
of spreadsheets

Empowering Everyone with Advanced, Open-Source Spreadsheet Solutions

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IronCalc is a
spreadsheet engine
and
ecosystem

MIT/Apache 2.0 licensed

You can integrate it into your projects, customize it to your needs,
and share it openly without any restrictions.

Feature rich

You shouldn't worry that this or that function is not supported.

Excel compatible

We at IronCalc are in awe of the software created by Microsoft over
the years. We want every one to be able to use their spreadsheets.

Fully tested

Modern programming practices should be used covering with tests any
feature of the system.

Fast and lightweight

The programs shouldn't be heavier than a few hundred kilobytes.

International from day one

Language should no be a barrier to use a spreadsheet.

Well designed

It should be nice and friendly to use. Designed with love from the
ground up.

Why
[icon]
IronCalc?

For over 40 years, spreadsheets have been integral to countless
applications. Despite numerous proprietary and open-source options,
finding a universally accessible, reliable, and high-quality engine
remains a challenge. Many existing solutions are expensive, require
accounts, or suffer from performance and stability issues.

Our Mission: To fill the gaps left by the industry and empower every
user with a robust, open-source spreadsheet engine that caters to
diverse needs. Here's why we are dedicated to this mission:

Addressing Unmet Needs

Empowering SaaS Developers: Hundreds, if not thousands, of companies
have implemented half-baked spreadsheets in their systems. IronCalc
aims to provide these businesses with a superior, open-source
alternative that enhances their SaaS applications.

Automated Spreadsheet Processing: Users need a reliable way to
programmatically open, populate, and analyze spreadsheets for
large-scale scenarios. IronCalc delivers the performance and
functionality required for these complex tasks.

Global Collaboration: We envision a world where anyone can use a
spreadsheet online and effortlessly share it with friends for
collaborative projects, such as planning travel experiences.

Interactive Blog Integration: Bloggers should be able to embed
interactive spreadsheets in their posts, allowing readers to engage
with custom test cases and scenarios.

Beyond Code: Advancing Spreadsheet Technology and Community

IronCalc's ambition extends beyond providing open-source code. We aim
to drive the spreadsheet industry forward through:

Research and Development: While many areas of computer science, such
as compilers and algorithms, have extensive literature, spreadsheets
have been largely overlooked. We want to challenge that by finding
collaborators in universities and academic institutions willing to do
open research in spreadsheet engines.

Community and Collaboration: We can dream bigger, maybe we can
organize conferences and maybe support PhD researchers and foster a
collaborative environment where ideas and innovations can flourish.

Building a Knowledge Base: Our goal is to equip the next generation
of spreadsheet developers with a comprehensive set of tools and
knowledge, laying a solid foundation for future advancements, not
only IronCalc.

Together, we can push the boundaries of what spreadsheets can
achieve, making high-quality, accessible spreadsheet technology
available to all.

- The IronCalc Team

Funding

[nlnet-logo]

This project is funded through the NGI0 Entrust Fund, a fund
established by NLnet with financial support from the European
Commission's Next Generation Internet program, under the aegis of DG
Communications Networks, Content and Technology under grant agreement
No 101092990. Learn more on the project page.

Sponsors

We are grateful for the support received by the following
organizations:

[tutanota-l]

Tuta is the world's most secure email service, easy to use and
private by design.

[zulip-logo]

Zulip is an open-source modern team chat app designed to keep both
live and asynchronous conversations organized.

[ironcalc-l]
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Contact

Email GitHub Discord

IronCalc is developed by Nicolas Hatcher with lots of help from the
designer Daniel Gonzalez-Albo.

Send us a note at hello@ironcalc.com