Casey Marlin

Web Developer and Software Engineer in San Francisco

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Hi, I'm Casey Marlin — an indie developer who builds free, privacy-first web tools. I believe everyday tasks like converting files, changing image settings, or managing contacts shouldn't require expensive software or uploading your data to someone else's server. That's why all my tools run entirely in your browser. Check out my projects: stlmesh.com (3D file converter), setdpi.com (image DPI changer), emltool.com (EML file viewer), csvtoics.app (CSV to calendar), csv-to-vcf.com (CSV to vCard), and coloringpagenook.com (free coloring pages).