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Show HN: ViewKit – Interactive dataset viewer in the browser, no upload

https://viewkit.app/
2•ayu05•49m ago

Comments

ayu05•48m ago
Hi all! I've been working on ML/Robotics research for a while and often work with HDF5, Parquet, and Zarr files. Personally, I love the myHDF5 viewer, but there's no good equivalent for Parquet and Zarr, and switching between different sites also gets annoying. So, I built a tool that provides a unified solution.

It currently supports viewing several formats, including HDF5, Parquet, Zarr, Arrow, JSONL, NumPy, TFRecord, etc. I'm hoping to add more features/formats depending on what people find useful!

It's free to use with no sign-up required.

Everything is loaded and parsed locally in your browser (WebAssembly + JS), so your data always remains on your machine. It's also built to remain responsive on big files via efficient reading, caching, and prefetching. Traversing through data files actually feels faster than existing solutions like myHDF5 with simple caching/prefetching strategies. It also supports some common data types that existing viewers don't support (e.g. float16, complex numbers for HDF5).

I'd appreciate any feedback (feel free to comment or send a message through the website). Looking forward to supporting additional features/file formats that the community finds useful!

Show HN: AlgoDeploy – Python algo trading you run yourself (Alpaca and IBKR)

https://algo-deploy.com/
2•Qnt_Algo_Trader•1m ago•0 comments

Dr. Death (James Grigson)

https://en.wikipedia.org/wiki/James_Grigson
2•Cider9986•2m ago•0 comments

Show HN: Trylle – The Next-Gen Git Platform for Modern Teams

https://trylle.com/home
3•Xlab•2m ago•0 comments

Show HN: Dowe – A full-stack language for server, web, desktop, Android, and iOS

https://www.dowe.dev
2•victorriba•3m ago•0 comments

Why communication might be the missing link in engineering education

https://digilent.com/blog/why-communication-might-be-the-missing-link-in-engineering-education/
2•teleforce•4m ago•0 comments

Convergence Is Not Enough

https://www.inkandswitch.com/livelymerge/notebook/lm-02/
2•zdw•6m ago•0 comments

Show HN: Bike ride planning tool with weather

https://theinstant.cc/ride
2•Gshaheen•6m ago•0 comments

We used to be able to buy things in this country

https://dannykatch.substack.com/p/we-used-to-be-able-to-buy-things
2•sudobash1•7m ago•0 comments

Netflix employee fired for sharing personal details in retreat trust exercise

https://www.inc.com/amaya-nichole/netflix-company-retreat-sparked-lawsuit-experts-say-real-damage...
4•softwaredoug•7m ago•0 comments

RTL meaning: What is Register Transfer Level and how to use it?

https://digilent.com/blog/rtl-meaning-what-is-register-transfer-level-and-how-to-use-it/
2•teleforce•7m ago•0 comments

Astronauts describe persistent 'observer' sensation after 6 month missions

https://spacedaily.com/sd-v-astronauts-returning-from-six-month-missions-describe-a-persistent-ob...
2•zdw•9m ago•0 comments

Bonfire for communities: groups and tools to organise together

https://bonfirenetworks.org/posts/bonfire-for-communities/
2•rguiscard•12m ago•0 comments

Functional CQRS with .NET

https://onurgumus.github.io/FCQRS/tutorial/index.html
2•reverseblade2•13m ago•0 comments

DConf 2026 in London

https://dconf.org/2026/index.html
8•teleforce•14m ago•0 comments

Quick and Easy Parser Combinators

https://www.cyan.sh/blog/posts/tutorial-quick-easy-parser-combinators.html
2•birdculture•15m ago•0 comments

PiEEG XR looking tester for new device – transfer emotions and mimics to VR

https://twitter.com/pieeg_official/status/2081512367838380346
2•Christiangmer•16m ago•1 comments

Should We Make Daylight Saving Time Permanent?

https://www.nytimes.com/2026/07/27/science/daylight-saving-time-health-safety.html
6•0in•18m ago•1 comments

Show HN: Call Me, your AI agents ring you with no extra carrier costs

https://github.com/radres/call-me
2•radres•19m ago•0 comments

C/C++ projects packaged for Zig

https://github.com/allyourcodebase
5•jcbhmr•19m ago•1 comments

Kimi is Claude

https://imgur.com/a/vek7fVQ
6•fny•23m ago•4 comments

America has become an entrepreneur's paradise

https://www.economist.com/business/2026/07/27/america-has-become-an-entrepreneurs-paradise
8•bookofjoe•24m ago•3 comments

Lost in Context: Addressing Context Anxiety in Large Language Models

https://arxiv.org/abs/2607.21616
2•StatsAreFun•26m ago•0 comments

China begins mass production of homegrown DUV chipmaking tools

https://www.tomshardware.com/tech-industry/semiconductors/china-begins-mass-production-of-domesti...
4•yogthos•27m ago•0 comments

Cisco launches super affordable security language model called Antares

https://www.neowin.net/news/cisco-launches-super-affordable-security-language-model-called-antares/
2•willmarch•28m ago•0 comments

Show HN: Ami – A local, open-source agent that does your busywork across apps

https://github.com/NanoNets/ami
2•vitaelabitur•33m ago•0 comments

Memories of a Checkstand Lifestyle (2021)

https://tagn.wordpress.com/2021/05/09/memories-of-a-checkstand-lifestyle/
2•LastTrain•40m ago•0 comments

TanStack Markdown and TanStack Highlight

https://tanstack.com/blog/introducing-tanstack-markdown-and-highlight
3•MehrdadKhnzd•42m ago•0 comments

Kimi K3 Now Available via Telnyx Inference API

https://telnyx.com/release-notes/kimi-k3-telnyx-inference
3•fionaattelnyx•42m ago•3 comments

A Discord Alternative – Echoed

https://echoed.gg/
14•acley•43m ago•5 comments

John's colleague told him he didn't belong. It was just what he needed to hear

https://text.npr.org/nx-s1-5906734
5•mooreds•43m ago•0 comments