
Holdfast — Payment Recovery for SaaS & Creators
Retries failed Stripe charges and recovers subscriptions with automated dunning sequences.
@Holdfast_app · X
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23 projects

Retries failed Stripe charges and recovers subscriptions with automated dunning sequences.
@Holdfast_app · X

Learn math and physics through cinematic missions and interactive physics simulations.
@electricdrago10 · X

AI tool that generates on-brand content like posts, carousels, and videos from text descriptions.
u/naxmax2019 · Reddit
Lessons from building a “paste a URL, get your brand” onboarding - our activation rate doubled when we deleted the signup wall Building an AI content tool (Sketch : turns one prompt into on-brand posts, carousels, video, etc.). Sharing one decision that changed everything, because I see SaaS founders get this wrong constantly: We let people generate before signing up. Old flow: signup → onboarding form → brand kit upload → first generation. Classic. Also classic drop-off at every step. N

Turn stories and scripts into short videos with AI-created characters and voiceovers.
StoryIntoVideo — AI 故事转视频 | 小说一键生成短剧视频

Enter your story to create manga panels and videos with AI scenes.
MakeManga — AI 生成漫画,支持 Nano Banana 和 Seedream 4.0 模型,只需提供故事,剩下的分镜和角色生成等都交给 AI

AI-powered generator that transforms photos and creates videos, music, and 3D content with various effects.
AI Filter — 用 AI 滤镜将你的照片变换为动漫、粘土、3D、像素、表情符号、视频游戏、贴纸等多种滤镜风格

Build and scale systems in an interactive simulator to learn system design.
@echo_muss · X
Learn system design Try

Create and export flowcharts, sequence diagrams, ERDs, and other Mermaid diagrams online.
ghosts_ · HN
I've been slowly adding some new free tools to Moxie Docs (partly for SEO, partly to illustrate some of our feature sets before any commitment) for some reason this mermaid editor one blew up on Google rankings so I figured I'd share in case people find it useful! We also have ADR, AGENTS.md, LLMs, and a few other free tools.

AI tool that generates production-ready sitemaps, schema markup, meta tags, and robots.txt files automatically.
@PeakVisibilitys · X
🚀 AI-powered SEO audits and AI search optimization. Would love some feedback!

Run AI-powered sprint retrospectives that connect to your tools and identify improvement patterns.
@akadhanu · X
an ai sprint retrospectives for it teams (

A coding network where learners build visible proof through courses and challenges with mentoring and company operations.
@Michaela200_5 · X

Connect Gmail accounts to automate email sending and track opens and clicks.
@KenziChenBuilds · X
Hey! Developer behind Always looking for feedback to make it better.