chenmuxing

Building small

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About

Building small, free browser tools for everyday web, design, and productivity tasks. Creator of UtilForge.

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Tastemaker

Maker History

RoundPicAdd rounded corners, borders and padding to browser images.
May 2026
AdCalcEstimate website ad revenue from pageviews, RPM, CTR,and CPC
May 2026

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Joined Product HuntMay 19th, 2026

Forums

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2d ago

AdCalc - Estimate website ad revenue from pageviews, RPM, CTR,and CPC

AdCalc is a small browser-based calculator for website owners, bloggers, and indie builders. Enter pageviews, RPM, CTR, or CPC to estimate daily, monthly, and yearly ad revenue, then see how much traffic may be needed for a monthly revenue target.

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2d ago

RoundPic - Add rounded corners, borders and padding to browser images.

RoundPic is a simple browser-based tool for polishing screenshots, product images, avatars, and social graphics. Drop in an image, adjust the corner radius, add a border or background, and export PNG, JPG, or WebP. The image is processed locally in your browser.