Delta Widgets

Delta Widgets is a free, open-source builder for Windows desktop widgets. It suits users who want live system information alongside highly customized layouts, especially when visual editing alone is not enough. Its broad creation options are compelling, but people using other operating systems should look elsewhere.

Overview

Delta Widgets lets you assemble widgets without writing code through a drag-and-drop editor, then go further with custom HTML and CSS or content loaded from a URL. Templates provide a quick starting point, while blank projects support a more deliberate design. Expressions and variables can insert and format changing values in widget text and images, so the result can respond to current data rather than remain a static panel.

Its built-in set covers date and time, media controls, an audio visualizer, weather, disk usage, RAM, CPU, battery, and other system statistics. The project is released under the GPL-3.0 license. Documentation, GitHub issue reporting, and a community Discord provide routes for help and feedback.

Key features

Live data and flexible construction

Live time, weather, media information, and machine statistics make Delta Widgets useful for monitoring and everyday desktop information. The combination of templates, visual layout, and custom HTML/CSS gives beginners a low-code entry point without preventing advanced customization. Users who only need a fixed clock may find this breadth unnecessary, while dashboard builders gain substantially more room to shape a display.

Web content and optional AI assistance

URL widgets can show webpages, dashboards, web apps, or online tools. They are described as sandboxed for displaying external content, which makes them suitable for bringing a web-based panel onto the desktop while keeping its purpose focused on presentation. The optional bring-your-own-key assistant supports OpenAI, Anthropic, Google, Ollama, and OpenRouter. Provider keys are stored encrypted on the device, according to the maker. Because the assistant requires your own provider key, it is an optional extension rather than an included service.

The download page says anonymous install and widget-enable events are sent through Mixpanel, without tracking personal data. Readers who require no telemetry should weigh that behavior before installing.

Pricing

Free — free. The sole plan includes the complete free and open-source GPL-3.0 project and Windows 10/11 support. There is no free trial because the software itself is free, and no subscription, seat allowance, quota, or renewal charge is given. This is a straightforward choice for individual users and developers who value inspectable software and unrestricted experimentation without a paid tier.

Platforms

Delta Widgets supports Windows 10 and Windows 11. Windows 10 compatibility begins with the April 2018 release or later. There is no support for macOS, Linux, Android, iOS, or web use, making it unsuitable when the same widget setup must follow users across platforms.

Who it's for

Choose Delta Widgets if you use Windows and want one tool that can combine system monitoring, weather, media controls, and custom layouts. It is particularly well suited to users willing to move from templates into expressions, HTML/CSS, or URL-based panels. It is a weaker choice for a simple single-purpose gadget, for households with mixed operating systems, or for anyone unwilling to use software that reports anonymous installation and enablement events.

Pros and cons

Pros

• Open-ended widget creation: visual editing, templates, custom HTML/CSS, and URL widgets cover both quick setups and elaborate dashboards.
• Useful live information: time, weather, media, and core hardware readings are available through built-in widgets.
• Genuinely free and open source: the GPL-3.0 license avoids paid upgrades and makes the project suitable for users who want source-available software.
• Optional provider choice: bring your own key to connect the assistant to several major AI services or local Ollama deployments.

Cons

• Windows only: there is no cross-platform option for users on macOS, Linux, mobile, or the web.
• External-content trade-off: URL widgets are useful for dashboards and web apps, but their value depends on the sites being embedded.
• Anonymous telemetry: Mixpanel receives install and widget-enable events, which may matter to privacy-focused users.
• AI usage is not bundled: the assistant relies on a provider key supplied by the user.

Alternatives

Mango Mirror is the better pick when you need Android, iOS, Linux, web, and Windows coverage, a two-screen free license, or a paid Pro tier with a trial. Choose Nexus for broad platform support and an ad-free free plan. SAWAS Dashboard fits readers seeking free private and commercial use without ads or a subscription. Duckboard suits macOS and Windows users who prefer a defined dashboard allowance, with a one-time Extended upgrade for unlimited widgets. GKrellM is a cross-platform GPL option for traditional system monitoring. ClocX is a focused Windows freeware analog clock. Eww is a Linux-only standalone widget system under the MIT license. GadgetPack is a Windows 10/11 package with a 23MB download and administrative-rights requirement. Browse Desktop Widget Software for the wider category.

Verdict

Delta Widgets is a strong recommendation for Windows users who want live system and web information in layouts they can build visually or extend with code, at no cost. Its main reason to choose it is the unusual range from ready-made widgets to expressions, HTML/CSS, and URL content. Look elsewhere if you need macOS, Linux, mobile, or web support, or if anonymous telemetry conflicts with your privacy requirements.