Developer Tools2 days ago
under→the→hood · a ready→made explorer
Drag boxes to visualize how a Flexbox layout engine infers constraints.
drzivil · HN
Drag boxes around and watch a layout engine infer the Flexbox (no AI)
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Drag boxes to visualize how a Flexbox layout engine infers constraints.
drzivil · HN
Drag boxes around and watch a layout engine infer the Flexbox (no AI)
Transcribe audio files to text instantly with AI, no signup required.
音频转文字工具 — AI 音频转文字，快速、精准、安全的转写服务
Analyze your landing page's conversion potential with a free inspector tool or book a custom design in 24 hours.
@rapidlander_ · X
I design and deliver landing pages in 24 hours for founders who are launching now. Free inspector on the site too, paste your URL and it scores your page on what actually kills conversions.
Collect and display customer testimonials with analytics to track conversion impact.
@AmyVaradkar · X
It solves the scattered testimonial problem. Freelancers and agencies collect feedback via shareable form, display it anywhere, get real analytics on what converts. Beta access available right now which gives free pro plan for 15 days.
Free in-browser PDF tools for merging, splitting, converting, and editing without uploading files.
u/Key_Caramel_5578 · Reddit
Built a free PDF toolkit solo (with AI help) — need feedback on the in-browser text editor before I keep pushing on it Been heads-down on this for a while: thepdftool.in Standard PDF stuff : merge, split, compress, convert, OCR — but most of the conversion tools run entirely client-side (WASM), so files never leave your browser for those. Built solo, leaned on AI tools for a good chunk of the code and debugging. The feature I care most about right now is an inline text editor :— click i
Edit, resize, crop, customize and convert images privately in your browser with no uploads required.
@its_ajseven · X
Free collection of 12 online generators for QR codes, passwords, business names, quotes, and more.
@Oriam216 · X
Just launched AltosTools 🧰 — 12 free online generators in one place. QR codes, passwords, business names, price quotes & more. No sign-up, works on mobile, runs 100% in your browser. Try it 👉 #buildinpublic #freetools #indiehackers
Browser-based tools for video and audio compression, cropping, merging, and conversion without uploading files.
zhw2590582 · V2EX
最近对网站进行了重构，做成了免费的视频工具站：[ArtPlayer Tools]( https://artplayer.org/tools/) 主要是围绕着 ffmpeg.wasm 和 mediabunny 实现的一些可以直接在浏览器里用的视频/音频工具，常用的有： - 视频压缩：[Compress Video]( https://artplayer.org/compress-video/) - 视频裁剪：[Crop Video]( https://artplayer.org/crop-video/) - 视频合并：[Merge Video]( https://artplayer.org/merge-video/) - 视频尺寸调整：[Resize Video]( https://artplayer.org/resize-video/) - 视频旋转：[Rotate Video]( https://artplayer.org/rotate-video/) - 视频调速：[Change Video Speed]( https://artplayer.org/change-video-speed/) - 添加文字到视频：[Add Text to Video]( https://artplayer.org/add-text-to-video/) - 添加水印：[Watermark Video]( https://artplayer.org/watermark-video/) - 提取字幕：[Subtitle Editor]( https://artplayer.org/subtitle-editor/) - HLS 转 MP4：[HLS to MP4]( https://artplayer.org/hls-to-mp4/) - 音频可视化：[Audio Visualizer]( https://artplayer.org/audio-visualizer/) 大部分工具都是本地处理，文件不会上传到服务器。最开始是因为自己偶尔要处理一些视频，开剪辑软件又有点重，在线工具又担心隐私，所以就慢慢做成了一个站。 目前还在持续完善，体验肯定还有不少粗糙的地方，比如不同浏览器的兼容、移动端操作、长视频性能之类的。 网站： [ArtPlayer Tools]( https:
Local AI apps for transcription and meeting assistance that run completely on your device.
Tovo - AI 会议/面试助手 — 在会议中，Tovo 是一款注重隐私的 AI 助手，完全在您的设备上运行，为会议和对话提供实时转录和智能协助，无需向外部服务器发送任何数据。
Automatically translate and dub videos into multiple languages with AI.
@pradeepcep · X
AI powered translation and dubbing:
Create dynamic QR codes with custom logos, colors, and usage tracking.
@IfeanyiArinze10 · X
What does What makes it unique?
450+ privacy-friendly tools for formatting, converting, and processing PDFs and images, all running locally in your browser.
@tentaco_cc · X
Hey! I built 🐙 It’s a privacy-first web space packed with over 450+ free micro-tools for tech, design, marketing, and PDFs. The best part? Everything runs 100% locally in your browser. No registration, no ads. Let's connect! 🛠️