GridCraft

GridCraft

ArtCraft
+
+

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About

GridCraft is an open-source spreadsheet application for creating, editing, calculating, and analyzing workbooks on desktop or in a browser. Its interface includes a ribbon, formula bar, and sheet tabs, with tools for formulas, dynamic arrays, tables, sorting, filtering, data validation, conditional formatting, charts, and PivotTables. It supports XLSX, CSV, and TSV workbooks, with comments, hyperlinks, print settings, and PDF output. Users can build budgets, schedules, sales summaries, and other data tables, then calculate and visualize results in a workbook. Desktop releases are available for Windows, macOS, and Linux; a WebAssembly build can be hosted on a static server. A command-line tool, JSON control channel, and Model Context Protocol server let developers and AI agents inspect, edit, calculate, and format workbooks programmatically. GridCraft is free, open-source software, and its maintainers currently describe the project as pre-alpha.

About

WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications. The Wasm stack machine is designed to be encoded in a size- and load-time-efficient binary format. WebAssembly aims to execute at native speed by taking advantage of common hardware capabilities available on a wide range of platforms. WebAssembly describes a memory-safe, sandboxed execution environment that may even be implemented inside existing JavaScript virtual machines. When embedded in the web, WebAssembly will enforce the same-origin and permissions security policies of the browser. WebAssembly is designed to be pretty-printed in a textual format for debugging, testing, experimenting, optimizing, learning, teaching, and writing programs by hand. The textual format will be used when viewing the source of Wasm modules on the web.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

People who need to create, edit, calculate, and analyze spreadsheets, including developers and AI-agent users who want to automate workbook tasks.

Audience

Developers

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free, open-source software dual-licensed under MIT or Apache-2.0, with no subscription or license-server requirement.
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

ArtCraft
github.com/storytold/gridcraft

Company Information

WebAssembly
Founded: 2015
webassembly.org

Alternatives

Microsoft Excel

Microsoft Excel

Microsoft

Alternatives

AssemblyScript

AssemblyScript

The AssemblyScript Project
Modsurfer

Modsurfer

Dylibso
LibreOffice Calc

LibreOffice Calc

LibreOffice
Formula Manager for Excel

Formula Manager for Excel

Uniform Software Limited
PlanMaker

PlanMaker

SoftMaker

Categories

Spreadsheet Supported

Categories

Integrations

AssemblyScript Not Supported
BlazorPlate Not Supported
BoxLang Not Supported
Extism Not Supported
Gideros Not Supported
Graphite Not Supported
Indent Not Supported
Kitesurf Not Supported
ML Console Not Supported
Meshpage.org Not Supported
Model Context Protocol (MCP) Supported
Modsurfer Not Supported
Second State Not Supported
SurrealDB Not Supported
Wasmer Not Supported
WebContainers Not Supported
Zed Not Supported
Zellij Not Supported
ai-coustics Not Supported
fastText Not Supported

Integrations

AssemblyScript Supported
BlazorPlate Supported
BoxLang Supported
Extism Supported
Gideros Supported
Graphite Supported
Indent Supported
Kitesurf Supported
ML Console Supported
Meshpage.org Supported
Model Context Protocol (MCP) Not Supported
Modsurfer Supported
Second State Supported
SurrealDB Supported
Wasmer Supported
WebContainers Supported
Zed Supported
Zellij Supported
ai-coustics Supported
fastText Supported
Claim GridCraft and update features and information
Claim GridCraft and update features and information
Claim WebAssembly and update features and information
Claim WebAssembly and update features and information