Image Radius Editor

Helps designers and developers quickly compute and apply image corner radii across platforms by generating CSS border-radius values from four inputs.

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4,476+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Image Radius Editor processes input data instantly inside your browser.

Sample Input Birth date: Jan 15, 1995, Target date: Oct 20, 2023

Computed Result Chronological Age: 28 Years, 9 Months, 5 Days (10,505 days elapsed)

Execution Mode Client-Side In-Browser JS

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About This Tool

The Image Radius Editor provides a domain-focused calculator to generate CSS border-radius values from four corner radii. It targets frontend developers, UI designers, and content editors who insert images into responsive layouts and need exact per-corner control. The tool translates four numeric radii with units into a valid CSS shorthand, enabling consistent visuals across components. By separating data entry (TL, TR, BR, BL) from output, it reduces guesswork and supports design-system tokens. The core value lies in unit-aware calculations, error checking for non-numeric or negative inputs, and producing ready-to-use CSS strings for rapid handoff to stylesheets. This approach accelerates prototyping, ensures consistency, and minimizes rework when adjusting imagery across breakpoints.

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How to Use

Provide inputs: enter TL, TR, BR, BL radii and units (px, em, rem, %).
Validate values: ensure non-negative numbers and supported units.
Run calculation: tool derives the border-radius shorthand from the four corners.
Review outputs: copy the CSS snippet and per-corner details for tokens.
Export or paste: integrate into your stylesheet or design system.
Test in context: adjust values as needed for responsive layouts.

Frequently Asked Questions

Find Quick Answers

What input formats are accepted?

Inputs accept numeric values with optional units (px, em, rem, %). Values must be non-negative. If a unit is omitted, a default is assumed only if allowed by the tool; otherwise the input should specify a unit.

How do I handle identical radii?

If all four radii are equal, the tool outputs a simple border-radius value (e.g., border-radius: 8px). If only a single value is provided, it applies to all corners. Mixed inputs follow standard CSS shorthand rules.

Can I use percentage values?

Yes. Percentage values are accepted and correspond to relative corner radii. Outputs preserve the unit so the resulting CSS remains valid for responsive contexts across browsers.

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