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Retrospectively Reverse-Engineering Apple's Neural Engine

https://eiln.github.io/posts/ane.html
65•zdw•1h ago•9 comments

IKEA made a mod for Skyrim [video]

https://www.youtube.com/watch?v=iZODN0QUgjI
71•kegenaar•2d ago•11 comments

A misalignment of AI in mathematics

https://mathandai.org/
915•meredydd•15h ago•881 comments

I spent $220 on Google app ads and 60% of the installs were robots

https://dayzlegame.com/blog/google-ads-bot-farm/
523•nickabe•15h ago•273 comments

Navier-Stokes Announcement

https://www.claymath.org/news/navier-stokes-announcement/
156•rvz•5h ago•103 comments

Usenet rewind archive search engine

https://www.usenet-rewind.com/
60•cstadler1869•5h ago•12 comments

google.com/goto: Google's anti-scraping update

https://www.autom.dev/blog/google-search-goto-links
420•1e1a•6h ago•322 comments

A Design Space Exploration of Async/Await

https://cel.cs.brown.edu/blog/design-space-async-await/
280•wcrichton•2d ago•72 comments

Great Lakes sturgeon may be 400 years old:Scientists rethinking how to save them

https://www.cbc.ca/news/canada/ontario-great-lakes-sturgeon-lifespan-study-9.7329250
67•bookofjoe•2d ago•3 comments

Inverse Kinematics and Foot Locking

https://theorangeduck.com/page/inverse-kinematics-foot-locking
34•airhangerf15•5d ago•1 comments

Show HN: Bodily Oddities

https://vester.si/bodily-oddities/
245•vesterde•1d ago•167 comments

Designing for Dual Screen and Foldable Devices with CSS (2023)

https://blog.stephaniestimac.com/posts/2023/05/design-foldable-devices/
33•mooreds•1d ago•6 comments

Logo Programming

https://el.media.mit.edu/logo-foundation/what_is_logo/logo_programming.html
280•azhenley•3d ago•113 comments

OpenAI agents carried out an undisclosed attack on RubyGems

https://www.rubyhack.ai/
699•chao-•10h ago•394 comments

Project Blinkenlights

https://blinkenlights.de/en/
90•doener•11h ago•31 comments

Mind-altering drugs played key role in rise of Andean civilization

https://www.science.org/content/article/mind-altering-drugs-played-key-role-rise-andean-civilization
161•geneticdrifts•16h ago•104 comments

Litelm: LiteLLM Without the Bloat

https://github.com/kennethwolters/litelm
136•kennethwolters•15h ago•46 comments

I've operated petabyte-scale ClickHouse clusters for 5 years

https://www.tinybird.co/blog/what-i-learned-operating-clickhouse
214•adastral•4d ago•78 comments

Detailed report on the use of solar geoengineering

https://www.technologyreview.com/2026/09/10/1143804/this-road-map-could-help-us-decide-whether-to...
8•coloneltcb•1d ago•0 comments

GrapheneOS' rewritten Messages app is released

https://github.com/GrapheneOS/Messaging/releases/tag/13
277•microtonal•14h ago•202 comments

Show HN: ResolveHQ – A Helpdesk Built on Cloudflare Workers, D1, R2 and Queues

https://github.com/mirza-rizvi/ResolveHQ
57•mirza_rizvi•11h ago•18 comments

Rune is now open source

https://rune.build/blog/rune-is-now-open-source
185•ernestrc•18h ago•58 comments

Λ Snap – An inviting programming language for kids and adults for CS study

https://snap.berkeley.edu/
143•dr_kiszonka•16h ago•82 comments

AlphaGenome maps 9B DNA variants

https://spectrum.ieee.org/alphagenome-atlas
85•ltononro•2d ago•7 comments

Testing Race Conditions

https://projectzero.google/2026/09/maccconc-race-condition.html
50•alpaylan•2d ago•2 comments

The EPA is planning to scrap public review rules for data center pollution

https://capitalbnews.org/data-centers-permit-rules-epa/
461•doener•15h ago•333 comments

Google will buy half the electricity from one of Finland's nuclear power plants

https://www.bbc.com/news/articles/c8r6y4me2g6o
360•lukaspetersson•1d ago•323 comments

Another way to leak traffic on Android has been discovered

https://mullvad.net/en/blog/another-way-to-leak-traffic-on-android-has-been-discovered
67•mhitza•12h ago•7 comments

Claude is only available to people over 18 years

https://support.claude.com/en/articles/15171100-age-assurance-on-claude
641•Muhammad523•22h ago•627 comments

RTK reports token savings, but our cost benchmarks disagree

https://quesma.com/blog/does-rtk-make-ai-coding-cheaper/
162•michalwarda•22h ago•80 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?