News for hackers. Stuff that matters.

robbiejs

Re:Surrender as a non-stupid life strategy on Saturday July 18, 2026 @06:40PM (#48963175)
Thank you for writing this. It resonates with me at this moment in my life! :-)
Re:Show HN: Display Excel files in your web app on Monday July 13, 2026 @01:23PM (#48895881)
Thanks for your comment!

It will handle 100,000s of cells without much issues: it has virtualized scrolling and rendering .

I have not tested it with large file sizes, like your 20mb or 50mb examples.

I would love to test the product with it. Is there a way you could send us an example of such a workbook, where data is anonimized?

You can send it to [email protected]

Show HN: Display Excel files in your web app

https://spreadsheetpreview.com

Hello Hacker News!I have just launched SpreadsheetPreview, an embeddable Javascript/Typescript component that displays an Excel file (.xlsx) in any browser.Benefits: No upload. No server. No Microsoft Office dependency.You can see it here: https://spreadsheetpreview.com.The component is based on DataGrid Toolkit, the toolkit that also powers upcoming DataGridXL v4, which is an editable data...

( Read More... | 4 comments | on HN )
Re:Ask HN: What Are You Working On? (July 2026) on Monday July 13, 2026 @04:31AM (#48889556)
I am working on Spreadsheet Preview, embed and preview Excel files in any website/web app. Just like PDF.js for pdf files. Check it out at https://spreadsheetpreview.com
This looks really cool! Congrats on launching! It would be nice to display an animated GIF along with the sprite examples
Hello Hacker News!

I have just launched SpreadsheetPreview, an embeddable Javascript/Typescript component that displays an Excel file (.xlsx) in any browser.

Benefits: No upload. No server. No Microsoft Office dependency.

You can see it here: https://spreadsheetpreview.com.

The component is based on DataGrid Toolkit, the toolkit that also powers upcoming DataGridXL v4, which is an editable data grid component with an Excel-like interface.

The component is free to use for non-commercial projects. Commercial use requires license.

Please try it out and let me know what you think!

Best,

Robbert

Re:Show HN: Neil the Seal Game on Wednesday July 08, 2026 @12:08PM (#48833733)
Cool game! Reminds me of the untitled Goose Game, bullying citizens, is that a genre? It should definitely be a genre.

Show HN: DataGridXL v3, High Performance Excel-Like Data Grid

https://datagridxl.com

Hello HN!Some time ago I released DataGridXL version 3. Version 1 and 2 both reached the Hacker News homepage, which made me really proud!DataGridXL is a modern Excel-like data grid.Version 3 is the best version of DataGridXL so far! More features, more performance, better product!Have a look at the website and let me know what you think!P.S. I have already released Spreadsheet Preview...

( Read More... | no comments | on HN )

Show HN: SpreadsheetPreview: Pdf.js for Spreadsheets

https://spreadsheetpreview.com/

Hello Hacker News!I have just launched SpreadsheetPreview, an embeddable Javascript/Typescript component that displays an Excel file (.xlsx) in any browser. You can see it here: https://spreadsheetpreview.com.Benefits: No upload. No server. No Microsoft Office dependency.The component is based on DataGrid Toolkit, the toolkit that also powers upcoming DataGridXL v4, which is an editable data...

( Read More... | no comments | 2 points | on HN )
Re:Ask HN: What are you working on? (May 2026) on Monday May 11, 2026 @08:18AM (#48094033)
I am working on SpreadsheetPreview.com, a subscription service that gives you PNG previews of your uploaded spreadsheet (xlxs files).

On the server it opens a headless browser, where it converts the XLXS format to OGF (Open Grid Format), which is then rendered by DataGrid Toolkit, the engine behind DataGridXL v4. It then takes a screenshot of this render and sends it back to the requester.

Try out a few renders at https://spreadsheetpreview.com

Re:Ask HN: What Are You Working On? (Nov 2025) on Monday November 10, 2025 @12:40AM (#45872799)
I am working on a browser plugin that lets you edit Supabase database tables just like Excel, until it's ready. Then you switch to the main branch and the tables will be read only
Re:Ask HN: What are you working on? (July 2025) on Wednesday August 06, 2025 @11:59AM (#44813760)
Agree!
Re:Ask HN: What are you working on? (July 2025) on Sunday July 27, 2025 @05:52PM (#44705059)
I am working on a platform called ikverdienbeter.nl (i deserve better) that educates people on recognizing healthy behaviour and healthy boundaries. I take snippets from popular tv, like dating shows, and mark the "red flags" on a timeline. For instance: "here at time 1:05 you see the woman gaslight the man. Gaslighting means [...]".

Using AI for auto subtitles and actor matching. Will build some auto deploy fragment to social media as well. I think these short fragments will do well op TikTok.

Re:Ask HN: What are you working on? (July 2025) on Sunday July 27, 2025 @05:25PM (#44704828)
Well not really obscure, but some want formulas, some want advanced filters, grouping/pivoting. Nothing that's not done before but you don't want to say yes to all these things as the product will lose its core identity and strength.

So I will release my new data grid component based on my own toolkit, and if people want tweaks or "add these features", I will demonstrate them the toolkit.

Re:Ask HN: What are you working on? (July 2025) on Sunday July 27, 2025 @05:03PM (#44704671)
I am working on DataGrid Toolkit. Based on my experiences building and selling (Excel like) data grids, people always look for your data grid, "but can it do this"? With DataGrid Toolkit, a developer can choose his own building blocks/modules and make a more Excel-like data grid, or make a more DataTables style traditional paginated table. The toolkit is headless and stateless by design and comes with different renderers. Canvas, html or some hybrid. It is written in Typescript and the data store is in Rust/Webassembly.
Re:3K free SVG icons for popular brands on Friday September 20, 2024 @03:51AM (#41599762)
Very nice, nice set of constraints!
Re:Tailwind CSS vs. Pico CSS (2022) on Saturday September 14, 2024 @03:27AM (#41538118)
I think this website is beautiful in its simplicity
Re:Ask HN: Who's building an AI-free product? on Wednesday August 28, 2024 @03:16AM (#41376851)
DataGridXL, an Excel-like data grid for JavaScript. The manual Excel-like step is not going anywere soon is my estimate. https://datagridxl.com
Re:CSS Grid Areas on Friday August 16, 2024 @04:34AM (#41264439)
What a brilliant blog. Author puts a lot of love in it, that's clear! Thanks for sharing, read the whole thing. Made me feel kinda stupid for not using CSS Grid more... ;-)
Beautiful work
Cool project, it speaks to me! And I dig the emojis.

I like the chain able queries, like:

``` const cats = await manifest .from('cats') .where('breed = siamese') .andWhere('active = true') .andWhere('birthDate > 2020-01-01') .find() ```

What is it inspired by?

Love it! Thanks for sharing.
Hey OP,

Love the headline. Very confident ;-)

This is a very interesting article, thank you for the research!

I am very happy to work solo to prevent as much of these things as possible.

Everyone is using Typescript these days it seems instead of plain JavaScript but the 10 seconds + compile times and the extra layers in debugging make it a pain for me instead of a benefit. So I am using ES6 with Rollup. Rollup is great and my only dev dependency really. However great it is, if one day I could do without, I would :-)

Re:Hardest Problem in Computer Science: Centering Things on Thursday April 18, 2024 @05:49PM (#40081111)
What a beautiful website and what a fun read! Thanks for sharing!
Excellent work!

Like you said, there exists many chart libs out there already... Hope you find a way to sell and keep working on your product!

Re:Ask HN: What non-AI products are you working on? on Tuesday March 26, 2024 @06:38PM (#39833642)
Neat idea!

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