Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.
Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
Create free account
$300 in Free Credit Towards Top Cloud Services
Build VMs, containers, AI, databases, storage—all in one place.
Start your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
an embeddable spreadsheet for your web application
Sheetster is a web-based spreadsheet editor and viewer. It can import and export the XLS and XLSX file formats and nearly the full range of Excel formula functions are supported. Most basic features are implemented as well as some of the more advanced ones. The user interface is written entirely in JavaScript and its server-side API is pure Java based on the OpenXLS spreadsheet engine. Neither the client nor the server needs Excel or any browser plugins.
Sheetster is primarily intended...
Expr4J aims to provide a general purpose expression parser, which is also compatible with Microsoft Excel. It will provide an implementation of the built in functions in MS Excel as well as a calculation engine.
JFormulaEngine is a formula engine that runs spreadsheet-style formulas in any context. The function library is fully extensible and the engine can resolve variable names to any context, such as a CMS or spreadsheet, that is supported by JFormulaEngine.