Productivity2 weeks ago
NapkinBook: a computional whiteboard
Computational whiteboard for data analysis and insights, no signup required.
tccole · HN
Napkinbook, a smart canvas for discovering, and sharing insights
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Computational whiteboard for data analysis and insights, no signup required.
tccole · HN
Napkinbook, a smart canvas for discovering, and sharing insights
Cull and edit RAW photos in your browser with local processing.
@am56ay · X
Compress, merge, split, convert, and edit PDF files directly in your browser.
Organize tasks using kanban boards, notes, and calendar on web or Android.
@ak14053 · X
Convert PDF files to Markdown format locally in your browser without uploading.
halofanfan · V2EX
做了个浏览器本地处理的 PDF 转 MD 工具： PDF2MD Kit 因为经常要把 PDF 转成 Markdown 进笔记软件，觉得网上的工具太重还要上传服务器，就自己写了一个：**[PDF2MD Kit]( https://pdf2mdkit.com/)** * **纯前端解析**：文件零上传，比较安全 * **轻量**：无广告、免登录、最大 25M * **导出标准 .md** 网页地址：[https://pdf2mdkit.com/]( https://pdf2mdkit.com/) 第一次发，欢迎试用和反馈 bug 。
Free PDF tools in your browser for merging, splitting, compressing, and protecting files.
@magictoolshup · X
This unique website handles everything for you with great precision and professionalism. A key feature is that it never uploads your files—they remain solely within your browser for maximum privacy. Give it a try,you will discover something impressive.
Count characters, words, sentences, and paragraphs instantly in your browser.
@AIN_Project · X
Just shipped CNT - a simple text counter characters, words, sentences, paragraphs and reading time. Fast, free and no account required. #buildinpublic #indiehackers
Browser extension that customizes webpages with text prompts for styling, layout, and feature changes.
alentodorov · HN
built it in spring 2026--ready to share today. use opus 4.8 to create css and js snipptes to style the websites you visit the way you want. make nytimes more print-like, hn more matrix, or just replace any mention of AI with the :poop-emoji" -- your call.