xTuple OpenRTP is mainly a Business Intelligence Tool but alternatives to it may also be Database Managers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of xTuple OpenRTP.
JasperReports is a variously-licensed reporting tool & library, written in Java, which can generate HTML, PDF, Excel, CSV, and other format reports. JasperReports Server Community Edition is Open Source, licensed under the GNU Affero General Public License 3 (AGPL v4).
SAP Crystal Reports software is the de facto standard in reporting. With SAP Crystal Reports, you can create powerful, richly formatted, dynamic reports from virtually any data source, delivered in dozens of formats, in up to 24 languages.
PHP Report Maker is a powerful reporting tool that can generate dynamic PHP Web reports from MySQL, PostgreSQL, Microsoft Access and Microsoft SQL Server database. You can instantly create live detail and summary reports or crosstabs reports for your Websites.
SharpDevelop Reports (SDR) is the open source .NET reporting solution shipping with SharpDevelop. SDR supports Windows (WPF or Windows Forms) as well as Web (ASP.NET) applications thanks to its ability to use printers or output directly to PDF.