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Genie 4

https://deepmind.google/blog/genie-4-a-new-generation-of-world-simulation/
86•acossta•30m ago•34 comments

Python's experimental JIT to be removed

https://lwn.net/SubscriberLink/1102102/0c00e4d550f25f8c/
274•f311a•5h ago•145 comments

New iMac with M6

https://www.apple.com/imac/
138•notfried•3h ago•119 comments

AI promised less work. I've never worked more

https://oioannou.com/blog/ai-promised-less-work/
559•oorestisime•5h ago•482 comments

Wikipedia's Cleanup of AI-Generated Content

https://spectrum.ieee.org/wikipedia-wikiproject-ai-writing-cleanup
257•rbanffy•5h ago•113 comments

The US Government Is Hiding Secret Court Ruling About How It Spies on Americans

https://www.wired.com/story/the-us-government-is-hiding-a-secret-court-ruling-about-how-it-spies-...
288•helterskelter2•2h ago•73 comments

Here Be Monsters: What Do You Still Need to Know When Agents Do the Work?

https://blog.adrq.dev/here-be-monsters-what-do-you-still-need-to-know-when-agents-do-the-work
81•adrq•3h ago•20 comments

Why Micron Is Suddenly Ditching 4F² DRAM as Rivals Double Down

https://hothardware.com/news/why-micron-is-suddenly-ditching-4f-dram
54•rbanffy•1d ago•5 comments

Viral Polls Are Not Representative Polls

https://kevinreuning.com/blog/polling_virality.html
32•m-hodges•1h ago•26 comments

PHP2Shell: Exploitation attempts and remediation trends

https://www.wiz.io/blog/php2shell-exploitation-so-far
137•acossta•2h ago•44 comments

Classification of Finite Simple Groups Formalized in Lean

https://cfsg.axiommath.ai/
5•pfdietz•7m ago•2 comments

My video has unit tests

https://pertiller.tech/blog/my-video-written-in-code/
15•Vieltrinker•1h ago•3 comments

Three new discoveries in mathematics, computer science, and physics

https://openai.com/index/building-scientific-understanding-with-academic-communities/
1075•jonluca•19h ago•617 comments

Gforth 1.0

https://gforth.org/manual/1.0/NEWS.html
105•joshcsimmons•6h ago•6 comments

The Mythical Man-Month in the Age of AI

https://j11g.com/the-mythical-man-month-in-the-age-of-ai
351•ilreb•10h ago•229 comments

Anthropic trained Claude on illegally obtained Stanford professors' books

https://stanforddaily.com/2026/10/27/professors-books-pirated-to-train-claude/
48•car•1h ago•21 comments

A Stackless Floodfill Automaton

https://t3x.org/files/floodfill.pdf
22•andsoitis•1d ago•6 comments

Is my data used for model training?

https://privacy.claude.com/en/articles/7996868-is-my-data-used-for-model-training
147•jonpizza•2h ago•69 comments

The Exponential Time Hypothesis Is False [pdf]

https://github.com/openai/math/blob/main/preprints/The-Exponential-Time-Hypothesis-is-False-Octob...
744•vok•18h ago•270 comments

Software may be getting worse, but it used to be horrible

https://www.bitlog.com/2026/10/27/software-may-be-getting-worse-but-it-used-to-be-horrible/
224•jakevoytko•5h ago•175 comments

OpenLDK: Bringing the Java World into Common Lisp

https://atgreen.github.io/repl-yell/posts/openldk-java-in-common-lisp/
13•atgreen•2d ago•0 comments

Data Recovery CEO Indicted for Allegedly Scamming Ransomware Victims

https://www.propublica.org/article/zohar-pinhasi-monstercloud-ransomware-indictment
24•hn_acker•57m ago•5 comments

Sebastian Raschka's from-scratch video course on building reasoning models

https://magazine.sebastianraschka.com/p/building-reasoning-models
804•sgiannopoulos•1d ago•106 comments

Roblox downloaded 145GB models from us (including adult content) without asking

https://open3dlab.com/news/roblox-downloaded-145-gb-of-models-from-our-sites/
407•choult•6h ago•234 comments

New 14‑inch MacBook Pro with M6

https://www.apple.com/newsroom/2026/10/apple-introduces-the-new-14-inch-macbook-pro-with-m6/
116•meetpateltech•3h ago•131 comments

A $300B 'Debt Wall' Is Looming over Private-Equity Backed Companies

https://www.wsj.com/finance/investing/a-300-billion-debt-wall-is-looming-over-private-equity-back...
28•JumpCrisscross•1h ago•4 comments

188-Year-Old Mystery of Photography's First Human Subjects Solved

https://news.artnet.com/art-world/daguerre-photograph-subjects-location-2826596
36•bookofjoe•3d ago•7 comments

Apple introduces the new 14‑inch MacBook Pro with M6

https://www.apple.com/in/newsroom/2026/10/apple-introduces-the-new-14-inch-macbook-pro-with-m6/
23•beex•28m ago•9 comments

Solar power is becoming bigger than nuclear

https://www.bbc.com/future/article/20261023-how-solar-became-bigger-than-nuclear
493•geox•1d ago•672 comments

Oldest GUI application that still runs on Windows 11

https://blog.enlyth.com/posts/oldest-windows-gui-app-win-11/
506•enlyth•22h ago•301 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?