
LensUp — Free online document scanner (photo → PDF)
Turn photos into clean, printable PDFs with automatic cropping, de-shadowing, and compression.
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26 projects

Turn photos into clean, printable PDFs with automatic cropping, de-shadowing, and compression.

AI eye health assistant offering online consultation, vision records, and appointment booking.
@AaronConlonDev · X
给客户做了一个简单的眼视光医疗医生 AI 对话的 H5

Turn story ideas into 3D-printable tactile Braille pages for blind and low-vision children.
@fgiuliani87 · X
What if every blind or visually impaired child could create—and touch—their own story? ✨ Type an idea. We turn it into real Braille and raised illustrations, ready to 3D-print at home. Built with @lovable to make imagination accessible to everyone. 💜

Experience an interactive story about growing up on IRC in the 1990s.
sascotto · HN
An interactive story about living on IRC in the '90s

Simulate color blindness and low vision on any design, check WCAG contrast, and get smart palette fixes — instantly, free, no signup.
@contrastlyapp · X
Just launched Contrastly 👁️ See your design through everyone's eyes — instantly simulate color blindness & low vision, check WCAG contrast, get smart palette fixes. Free, no signup needed. 🔗 #accessibility #a11y #buildinpublic #indiehackers

Focus timer that shows other real people focusing right now, no chat or camera required.
@K_dev001 · X
Working alone is hard. I built Besidey: Start a focus timer and you can see other real people focusing at the same time, what they are working on, and roughly where they are. #buildinpublic #shipit #focus #productivity

Get AI-powered personalized palm reading analysis about love and career.
palm reading online — AI 看手相网站

Automatically generate audio descriptions for videos to make them accessible to visually impaired users.
u/Thecuriousbloke · Reddit
I built an AI tool that automatically generates audio descriptions for videos. I'd love some honest feedback I've spent the last few months building an AI tool that automatically generates audio descriptions for videos to make them accessible for visually impaired users. I'd love feedback on whether the descriptions are actually useful or if there are obvious issues. Looking for honest feedback. Check it out here - https://accessly.studio submitted by /u/Thecuriousbloke t

Make music with webcam hand gestures—chords, harmony, theremin pitch, no signup needed.
lisheng3698 · V2EX
我把摄像头变成了乐器:从手势识别到 Web Audio,分享 5 个真正踩过的坑 最近做了一个有点不一样的浏览器小项目:用摄像头识别双手动作,再把手的位置和姿势映射成和弦、音高、音量和音色。 不需要安装软件,也不需要麦克风。打开网页、允许摄像头后,就可以隔空演奏。 项目地址:[GestureSynth.me]( https://gesturesynth.me/) 建议使用最新版 Chrome 或 Edge 。摄像头画面只在本地处理,不会上传。 ## 真正难的不是“识别到手” 最开始我以为,只要 MediaPipe 能返回手部关键点,剩下的事情就是把坐标转换成音符。 实际做下来发现:**识别出一只手很容易,让它变成一个“能演奏”的控制器才难。** 摄像头每一帧都会返回一组手部关键点,但这些坐标会轻微抖动,偶尔还会丢失。如果直接把原始坐标连接到音高或者音量,听起来会非常不稳定。 最后形成的处理链路大致是: ```text 摄像头 → 手部关键点识别 → 提取手掌位置、距离和手势 → 平滑、死区和状态保持 → 映

Create professional screenshot mockups with frames, backgrounds, and annotations in your browser.
@Aticmatic_com · X
of course for people:

Remove objects, replace backgrounds, and enhance photos using AI—no signup required.
chenliang001 · HN
AI Photo Editor No Sign Up – Edit Photos with Prompts

Convert and edit audio, images, PDFs, and videos with 150+ free online tools, no signup required.
@factfile0 · X