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Linux 7.3 Released

https://lwn.net/Articles/1101143/
187•cjd8•2h ago•70 comments

How to Train Your Robot

https://www.construction-physics.com/p/how-to-train-your-robot
30•crescit_eundo•3d ago•13 comments

Hybrid Reasoning Agents: LLM agents that think in latent space, act through text

https://arxiv.org/abs/2610.18861
395•allinonai•13h ago•191 comments

Rabbits were a medieval royal luxury in England until the Black Death

https://phys.org/news/2026-10-rabbits-medieval-royal-luxury-england.html
89•samizdis•1d ago•78 comments

William Gibson and the trademarking of cyberspace

https://colo.to/cyberspace.html
183•Eric_Gullichsen•10h ago•65 comments

There's never been a better time to go into math (by: 3blue1brown) [video]

https://www.youtube.com/watch?v=LKrwhjOI8Nc
372•mdp2021•1d ago•442 comments

If you don't run your own LLM proxy, how do you know whats going on?

https://jrdsgl.com/if-you-dont-run-your-own-llm-proxy-how-the-fuck-do-you-even-know-whats-going-on/
167•amrrs•12h ago•114 comments

Tmux and Claude Code: Sessions, Send-Keys, and the Ceiling

https://crystl.dev/guides/tmux-for-ai-agents/
26•ankitg12•4h ago•9 comments

Someone behind the software

https://karrisaarinen.com/posts/someone-behind-the-software/
442•tosh•17h ago•165 comments

Superlite: A Faster Alternatie to Superpowers

https://contextfirst.blog/superlite-hand-an-agent-a-spec/
96•iheatuchriswogu•7h ago•37 comments

Laptop Based on 6502 CPU

https://www.maddox.pro/?p=448
128•nanochess•3d ago•54 comments

Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky

https://www.sciencealert.com/dogs-seem-to-agree-with-humans-that-bouba-is-round-and-kiki-is-spiky
240•gmays•1d ago•142 comments

RepRapMicron

https://github.com/VikOlliver/RepRapMicron/wiki
394•RobotToaster•20h ago•64 comments

The DNS Museum

https://dns.museum
73•zdw•2d ago•9 comments

Flatpak – An Insecurity Nightmare

https://oro.gay/posts/flatpak-an-insecurity-nightmare/
42•jannesan•4h ago•26 comments

HOL Light Tutorial

https://hol-light.github.io/tutorial/HTML/tutorial.html
5•stmonty•3d ago•0 comments

How Quickly Can the DoD Rebuild and Recast the Munitions Industrial Base?

https://www.csis.org/analysis/how-quickly-can-dod-rebuild-and-recast-munitions-industrial-base
65•gmays•10h ago•67 comments

Lant – The Forgotten Resource

https://sites.udel.edu/materialmatters/2018/04/11/lant-the-forgotten-resource/
10•kreyenborgi•3d ago•1 comments

Free Pascal compiler now supports dynamic packages

https://www.getlazarus.org/dynamic/
164•sysrpl•15h ago•38 comments

Show HN: WhatsApp MCP running free on Cloudflare

https://github.com/finereli/whatsapp-mcp
109•zoozla•12h ago•56 comments

PalmOS Lemmings

https://github.com/ardiri/palmos-lemmings
130•memalign•16h ago•32 comments

I built a programming language that LLMs can't use

https://blog.picheta.me/post/killswitch-lang/
191•dom96•1d ago•132 comments

Verisign .com Domain Name Registry Consumer Class Action

https://www.hbsslaw.com/cases/verisign-com-domain-name-registry-consumer-class-action
99•greyface-•5h ago•46 comments

A new way to think about borrow checking (in reverse)

https://verdagon.dev/blog/reverse-borrow-checking
86•verdagon•21h ago•8 comments

How Postgres DELETE can actually scale

https://www.dbos.dev/blog/scaling-deletions-in-postgres
18•KraftyOne•3d ago•3 comments

Java sealed classes and exhaustive pattern matching

https://neilmadden.blog/2026/04/24/java-sealed-classes-and-exhaustive-pattern-matching/
171•hnisjafx40•19h ago•130 comments

One parser, two bugs, many routers: Exploiting Broadcom WiFi across eCos, Linux

https://quentinkaiser.be/security/2026/10/16/one-parser-two-bugs/
80•zoobab•2d ago•19 comments

DeepSeek V4.1 Flash 1017 (Max)

https://artificialanalysis.ai/models/deepseek-v4-1-flash-1017
144•theanonymousone•5h ago•46 comments

Open MicroManipulator – A sub-micrometer 3D motion control plattform

https://github.com/0x23/MicroManipulatorStepper
201•_Microft•22h ago•16 comments

macOS 15.8.2 Breaks OpenGL

https://developer.apple.com/forums/verify-human/verify.html?next=/forums/thread/850550
261•Audiophilip•18h ago•294 comments
Open in hackernews

Show HN: Convert Large CSV/XLSX to JSON or XML in Browser

https://csvforge.com
41•Botlabs•1y ago
Hello HN, I'm excited to share a project I've been working on: A simple, fast way to process huge CSV and XLSX files directly in your browser and export them as clean JSON or XML

Here's a few things that makes this converter different: - runs in the browser - all parsing and conversion is client side can handle data any size data - automatically detects delimiters, encodings, and data types as it parses - Live preview with column renaming, search/replace, and data cleanup - Export to JSON or XML — clean, structured output that can be used for API or Databases

backstory: I built this tool for myself. I work with massive CSV and TXT files, some over 10GB, and opening them in Excel would freeze my laptop, some of the online converters only limits to a certain size, so I started learning Python and pandas but ended up wasting so much time trying different delimiters or fixing badly structured data just to make it usable, and I thought this would be a really fun project to build

I'd love some feedback. Thank you

URL: https://csvforge.com

Comments

sverhagen•1y ago
"Runs in the browser" and "client side" isn't as much of a selling point to me as it's made out to be. It's a claim that I can't really validate until it's too late. If it's a commercial service I'm going to have to pay for, then maybe you should go all the way in gaining my trust with whatever safeguards it takes, so that I no longer care if I upload my data to your server or not.
rustc•1y ago
> then maybe you should go all the way in gaining my trust with whatever safeguards it takes

What kind of safeguards are possible with a web app?

sverhagen•1y ago
I think this comes down to legally-enforceable contracts with some teeth. A lot of business seem okay to trust Google's cloud products, or Microsoft's? I think as private person with limited means for litigation, you're likely sol.
hahn-kev•1y ago
Yeah I really wish there was a way for this to be enforced by the browser that the end user could trust. It would have to be a standard, but outside of opening dev tools and toggling offline mode there's no way to be sure.

The funny thing is that it feels safer to download a desktop app and give it the same data even though it's usually much harder to validate if it's shipping your data somewhere else.

strogonoff•1y ago
There’s a cheap trick to make sure a website that claims to do everything client-side actually does everything client-side:

1. Open the site in an incognito window.

2. Turn off your Internet.

3. Do what you’ve got to do.

4. Close browser window.

As a bonus, and this makes it better than just flipping the offline switch in developer tools, if you turn off Internet in a way that keeps the browser thinking it’s online, you can also peek at whether any network requests are made (for pathological cases where the app does everything locally but phones home anyway).

Botlabs•1y ago
Sure, but you can validate it dev tools exist for a reason. Honestly, I just can’t afford the storage costs if users are uploading 50GB+ CSVs. It’d be a huge strain on any server, not to mention painfully slow for users. Running everything client side was the easiest and most practical way to build this MVP at least for me thanks for the feedback
o11c•1y ago
"Large" generally means "bigger than RAM"; 10GB is medium-sized these days since it fits in most people's RAM. Does the browser actually have the (web worker?) APIs needed to stream and "upload" and "download"?
shubhamjain•1y ago
I don't get it. Are JSON and XML files more friendly to import vs CSV files? I always assumed CSVs were the standard. Any reasons to prefer structured formats?

Shameless plug: I am working on a similar problem of Excel not being a great tool for large datasets. My desktop app[1] lets you import raw data files and query them using SQL. (The website needs to be updated, the app looks much better than the current screenshots).

[1]: https://textquery.app

Botlabs•1y ago
yes they are a lot easier to work with when inserting into the database
snappr021•1y ago
This type of thing is fairly trivial to create with ChatGPT running entirely locally in HTML.

A couple of kb of open standard vanilla js that does some simple things faster than legacy spreadsheets etc ever could.

Even to the point of creating invoices, reports etc based on standard filters stored in local storage…

oschvr•1y ago
Looks like you made it in lovable. It has that characteristic UI.

If so, how much time did it take you?

Botlabs•1y ago
thanks for your comment, it took me almost 3 weeks to build this
constantcrying•1y ago
I think it should go without saying, but never use this with anything more relevant than a hobby project.

Doing this with any kind of data you don't fully own (e.g. data from your company) is a terrible idea, from so many standpoints. That it is "allegedly" running locally is not making it much better.

I think my question to OP is, who is this for. Any developer can write up a convert for his own datasets, in basically any case I can think of where you are handling large amounts of data you are building a pipeline to do cleanup, renaming, conversion, etc. Who wants to have a part of that pipeline be uploading the data into the browser?