A progress bar is one of the most common small UI components, showing completion status for an upload, form, or multi-step process — but styling one to match a specific design's colors and proportions from scratch takes a few tries to get right.
Adjust the progress percentage, bar height, track color, and fill color with live controls to see an instant preview, then copy the exact HTML markup and CSS needed to drop the same styled progress bar into your project.
The generated markup uses two simple nested divs (an outer track and an inner fill sized by percentage), which is straightforward to update dynamically with JavaScript by changing the fill div's width whenever real progress changes.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this conversion or calculation often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Frequently asked questions
How would I update the progress dynamically with JavaScript?
Change the inner fill div's width style property to the new percentage value — for example, element.style.width = '80%' — and the bar will visually update to match.
Can I add a percentage label inside the bar?
Yes, add text content inside the fill div and style it with centered, contrasting-colored text for a labeled progress bar.