JavaScript / HTML5 News

Add Precision to Time-Based Data

June 2, 2025
LightningChart JS v7.1 brings nanosecond-level precision to time-based charts, enabling ultra-detailed analysis of high-frequency temporal data.

LightningChart JS is a JavaScript/TypeScript library developed by LightningChart that is particularly well-suited for data-intensive visualizations, offering exceptionally fast rendering capabilities thanks to its use of WebGL. This makes it a strong choice for applications that require real-time data updates, such as financial platforms, engineering tools, scientific research dashboards, and industrial monitoring systems. It provides high-performance, 2D, 3D, and real-time charting controls and a comprehensive suite of visualizations including candlestick, bar, line, and various technical indicators and drawing tools. This library enables software developers to craft interactive technical analysis tools without the need for server-side setup as it runs completely on the client device.

The LightningChart JS v7.1 update enhances its Date-Time axis capabilities by introducing support for nanosecond-resolution timestamps, allowing users to zoom into microsecond and nanosecond ranges for more granular time-based data analysis—well beyond the previous millisecond limitations. To utilize this feature, timestamps should generally be supplied as BigInt64. This update positions LightningChart JS among the few web charting libraries explicitly supporting nanosecond precision, making it a strong choice for applications requiring high-resolution temporal data visualization.

To see a full list of what's new in v7.1, see our release notes.

LightningChart JS is licensed per developer and is available as an annual license with 1 year support. See our LightningChart JS licensing page for full details.

For more information, see our LightningChart JS product page.

Deliver Flexible Reports for Distribution or Archiving

June 2, 2025
Exporting and printing features give users full control over how reports are shared, stored, and repurposed across platforms and formats.

Exporting and printing functionality in reporting components is a core requirement for many software applications, particularly those used in business, finance, and analytics. These capabilities enable users to transform dynamic, on-screen reports into portable or hard-copy formats suitable for distribution, archiving, or further processing. High-performance reporting tools offer flexible export and print options to accommodate various workflows, whether for regulatory compliance, client communications, or internal documentation. Support for a broad range of output formats ensures that users can interact with report content in the way that best suits their needs.

Common features include:

  • Exporting to CSV supports tabular data extraction, commonly used in data exchange and processing pipelines.
  • Exporting to DOCX allows reports to be opened and edited in Microsoft Word, preserving text formatting and layout.
  • Exporting to HTML transforms reports into web-friendly formats, suitable for browser-based viewing or embedding.
  • Exporting to Images captures reports as static visuals for use in presentations or documentation.
  • Exporting to PDF generates fixed-layout files ideal for sharing and preserving report fidelity across platforms.
  • Exporting to PDF with AcroForms enables the inclusion of interactive form fields within PDFs, supporting user input and data capture.
  • Exporting to RTF offers a more lightweight editable format that retains essential formatting for basic word processing applications.
  • Exporting to TXT simplifies reports to plain text for lightweight use cases or system integration.
  • Exporting to XLS/XLSX provides spreadsheet-compatible outputs for further analysis and manipulation in Microsoft Excel.
  • Printing capabilities allow for high-quality, configurable physical output, often with options to manage pagination, headers, footers, and printer-specific settings.

For an in-depth analysis of features and price, visit our React reporting components comparison.

Explore React Exporting and Printing Features

Ensure Accessibility and Data Clarity for All Users

June 2, 2025
Comply with WCAG standards and deliver clear, accessible information through intuitive JavaScript charts.

WCAG (Web Content Accessibility Guidelines) compliance in JavaScript charts ensures that visual data representations are accessible to all users, including those with disabilities. This involves implementing features such as semantic markup for assistive technologies, keyboard navigation support, high-contrast color schemes for users with visual impairments, and descriptive alternative text for charts and data points. Additionally, it may include providing data tables or summaries as textual alternatives and ensuring that interactive elements are operable without reliance on a mouse. Achieving WCAG 2.0 compliance enhances usability, meets legal accessibility standards, and promotes inclusive user experiences across web applications.

Several JavaScript chart controls offer WCAG compliance including:

  • Highcharts by Highsoft includes an accessibility module with keyboard navigation, screen reader compatibility, high-contrast themes, and support for voice input and sonification.
  • DevExtreme Chart (part of DevExtreme Complete by DevExpress) provides features like keyboard navigation, screen reader support, and high-contrast themes.
  • Kendo UI for Angular Chart (part of Kendo UI by Telerik) incorporates features such as keyboard navigation, semantic HTML output, and screen reader compatibility.
  • amCharts 5: Charts library includes keyboard navigation, high-contrast display modes, and text-based data alternatives to enhance accessibility.

For an in-depth analysis of features and price, visit our comparison of JavaScript Chart Controls.

Compare JavaScript Chart Controls

Generate PDFs from Spreadsheet Data

May 30, 2025
Enable users to export spreadsheets to PDF files directly within a JavaScript web application, whilst retaining the original content and styling.

Exporting a spreadsheet to PDF from a JavaScript application is a widely used feature that allows users to generate portable, print-ready documents directly from the browser. It converts the contents of a spreadsheet, such as cell data, formulas, formatting, charts, and images into a Portable Document Format (PDF) file. This capability ensures that the data, formatting, and layout from the original spreadsheet are preserved without relying on external applications or manual intervention. It is particularly useful for generating reports, invoices, or records that need to be shared, printed, or archived in a fixed format. By enabling PDF generation directly within the web application, developers can offer users a straightforward method to archive, print, or share spreadsheet content in a consistent and professional format across devices and platforms.

Several JavaScript spreadsheet components allow you to export to PDF, including:

  • SpreadJS by MESCIUS enables users to convert complex spreadsheet content, including formulas and styling, directly to PDF within a JavaScript application.
  • Telerik Spreadsheet jQuery (part of Kendo UI) provides an integrated PDF export option that retains the structure and styling of the spreadsheet for uniform document output.
  • Jspreadsheet Pro, through the export to PDF extension, facilitates the export of spreadsheet content to PDF, ensuring the integrity of the original document.
  • Syncfusion Spreadsheet JavaScript (part of Syncfusion Essential Studio Enterprise) allows you to save spreadsheet documents as PDF files, preserving layout and style.

For an in-depth analysis of features and price, visit our comparison of JavaScript spreadsheet components.

Compare JavaScript Spreadsheet Components

Add AI-driven Text Generation to Your Apps

May 28, 2025
Smart UI v23.0.0 lets users generate, refine, and summarize content instantly, letting them develop full-length text from simple AI prompts.

Smart UI by Smart HTML Elements is an enterprise-grade UI library offering pre-built web components for developers in Angular, React, Vue, Blazor, and JavaScript. It boasts over 60 ready-to-use components like grids, charts, schedulers, and editors, all featuring two-way data binding, responsiveness, accessibility, and theming capabilities. This library helps developers rapidly build dynamic and modern web applications with consistent look-and-feel and rich functionalities, accelerating development time and ensuring professional quality.

The Smart UI v23.0.0 release adds new features to Smart.Editor, including content generation, text summarization and the ability to rewrite, expand or shorten content by using AI. These capabilities enable users to quickly craft content, distill lengthy text into key points, and tailor messaging with precision, all without leaving the editing environment. Whether expanding a brief idea into a full paragraph or condensing verbose content for clarity, the new AI tools simplify content creation and editing.

To see a full list of what's new in v23.0.0, see our release notes.

Smart UI (Smart HTML Elements) is licensed per developer and is available as a perpetual license with 1 year support and maintenance. It includes distribution to unlimited Web applications, SaaS projects, Intranets and Websites. Team, OEM and Enterprise licensing options are also available. See our Smart UI (Smart HTML Elements) licensing page for full details.

Learn more on our Smart UI product page.