@hammad4june

Hammad Shams

@hammad4juneKarachi, PakistanJoined August 2026

Utilorax | 1,100+ free online calculators, converters & everyday tools

About

I build Utilorax — 1,164 free browser-based tools and a 203-endpoint API, all running client-side. I write about what breaks when you do everything in the browser: WebAssembly, ffmpeg.wasm, and measuring networks honestly.

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Technical writing, guest posts on web performance and WebAssembly, and freelance work.

Hammad Shams's blogs

Building Utiloraxbuildingutilorax.hashnode.dev2 posts

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Recently published

HSHammad Shamsbuildingutilorax.hashnode.dev22h ago · 7 min read

Parallel connections made my speed test 2× slower

I built a speed test last week. It told me my download was 8.2 Mbps. Speedtest.net, on the same line, five minutes later, said 28.65. My first instinct was that this was a distance problem, and I had

HSHammad Shamsbuildingutilorax.hashnode.dev2d ago · 8 min read

ffmpeg.wasm 0.12 hung on the first frame — and the real speedup was not the upgrade

I run Utilorax, a set of free browser-based tools. The video tools are ffmpeg.wasm, which means every encode runs on the user's own machine and nothing is ever uploaded. That is the whole point of the

Hammad Shams

About

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Hammad Shams's blogs

Recently published

Parallel connections made my speed test 2× slower

ffmpeg.wasm 0.12 hung on the first frame — and the real speedup was not the upgrade

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Hammad Shams

About

Available for

Hammad Shams's blogs

Recently published

Parallel connections made my speed test 2× slower

ffmpeg.wasm 0.12 hung on the first frame — and the real speedup was not the upgrade