Let two or three staff share one WhatsApp number without duplicates or misses
Problem
Small businesses get most inquiries through WhatsApp, but when two or three employees share one number, they duplicate replies or let messages go unanswered. A shop owner is explicitly asking for a shared inbox or simpler setup, which shows existing options are too pricey or don't cover WhatsApp.
Solution
A lightweight shared inbox over the official API or a supported bridge: message assignment, live status of who is replying, unanswered timers, and customer notes and tags. Nail queueing, claiming, and timeout alerts.
Read bedtime stories to kids in a parent's or grandparent's real voice
Problem
A developer building a kids' bedtime story app kept hearing the same feedback: an AI narrator feels creepy because it's a stranger's voice at bedtime. Users repeatedly suggested letting a parent or grandparent record a few minutes of audio so the app reads in that voice instead of a generic synthetic one.
Solution
Parents record 2–5 minutes of speech; a lightweight voice model reads a curated story library or text the parent writes. Focus is on familiar voice, offline playback, and an audio-only experience that keeps kids off screens.
Turn rough iPad sketches into editable high-fidelity wireframes in real time
Problem
Designers sketch loosely on an iPad, then redraw everything from scratch in Figma to deliver. An HN user is explicitly hunting for a tool that turns rough sketches into higher-fidelity wireframes or illustrations in near real time; the closest option, Tldraw's Draw Fast experiment, closed in 2024. Demand exists, nobody is serving it.
Solution
An iPad or web canvas that recognizes hand-drawn strokes and simple component symbols and outputs editable vector wireframe layers in real time: rectangles snap into buttons or inputs, doodles become image placeholders, and results export to Figma / SVG. Keeps the hand-drawn feel but with clean structure.
Auto-renew and deploy 90-day free SSL certs across small site fleets
Problem
Indie devs and freelancers often run a dozen small sites on IIS or Nginx. Free certs from cloud providers have shrunk from one year to six months to three months; each renewal means request, download, import, bind. Sites slip past expiry, visitors hit red warnings, and sometimes the client notices first.
Solution
A lightweight panel that connects your sites, auto-issues and renews free certs via ACME, deploys them to IIS / Nginx / Apache through script templates, and retries plus alerts before expiry. Set it up once and forget it.
Turn Shopify product photos into ready-to-post TikToks without editing skills
Problem
DTC store owners know TikTok short videos drive sales, but they can't edit and don't have time to build every video from scratch. Existing tools are either expensive or have a learning curve, so many just skip the channel.
Solution
Upload product photos or pull products from Shopify, pick a template and selling-point copy, and auto-generate multiple vertical short videos with transitions, captions and background music, exported at the right size and length for each platform so one product yields a week of content.
Move equipment invoices, warranties and service logs out of drawers and inboxes into one searchable ledger
Problem
Small business owners often don't know when the AC was last serviced or whether a machine is still under warranty. Invoices, warranty cards, service reports and supplier contracts are scattered across email, drawers and chats, and impossible to find when needed.
Solution
Create an asset card per piece of equipment, upload or photograph invoices and warranty documents with automatic extraction of key fields (purchase date, warranty end, supplier), send proactive reminders before warranty and service dates, and keep a service timeline per asset.
Help local businesses pull high-intent Facebook/Instagram DMs out of notification noise
Problem
Local service businesses rely heavily on Facebook and Instagram DMs to win jobs, but Meta Business Suite notifications often don't pop and get buried under old messages and comments. One owner replied to a hot inquiry three days late and lost the customer.
Solution
Connect to the Meta messaging API and funnel new DMs into a lightweight inbox ranked by intent keywords, reply status and waiting time. High-intent messages unanswered beyond a threshold trigger a secondary SMS or email alert so no lead slips.
Make PRs, tickets and Slack replies still sound like you after AI drafts them
Problem
More developers use AI to draft PR descriptions, Jira comments and Slack replies, but colleagues instantly recognize the AI voice and even call it ai slop. Personal writing style gets flattened, hurting professional image and communication.
Solution
Learn the user's tone and vocabulary from past PRs, tickets and chats to build a lightweight style profile. Offer one-click rewriting in VS Code, Slack and Jira that turns AI drafts into text with the user's voice while keeping technical accuracy.
One set of rules, skills and memory reused across Claude Code, Codex, OpenCode and 20+ AI coding tools
Problem
Heavy AI-coding users rotate between Claude Code, Codex, OpenCode and Kimi Code, and each tool has its own rule files, skill folders and memory. A preference stated in one tool has to be repeated in the next, and project context keeps getting lost, slowing people down.
Solution
A local-first vault where users maintain a single Markdown rules file and skill directory. The tool adapts and distributes them into each AI editor's config format, and exposes vault_search and vault_remember as MCP tools so any MCP-capable agent can look up past preferences and project knowledge.
Lightweight booking and no-show fee tool for small service businesses to cut last-minute cancellations
Problem
Small business owners constantly deal with last-minute cancellations and no-shows: a client booked a week ahead but only replied at 5:20 pm the day before; others debate whether to take deposits and how. Without a system, it's all manual chasing.
Solution
A single link for booking, automatically collecting a refundable deposit, sending confirmation reminders, and charging a no-show fee per your rules. Generates a simple booking calendar and client records, supports WhatsApp/SMS reminders, no app download needed.
Turn chart images from PDFs or screenshots into editable templates for thesis formatting
Problem
A week before a defense, an advisor sends a technical roadmap screenshot from a PDF where text can't be edited and boxes can't be moved, and redrawing from scratch takes too long. Students in thesis or defense scenarios need to revise repeatedly, and pasting the image looks blurry when enlarged.
Solution
Upload a PDF or screenshot, automatically recognize text, arrows, boxes, and other elements, and rebuild them into editable vector or table structures. Offer one-click school template styles, check font, caption, and unit consistency, and export editable PPTX/SVG.
Turn photos into bead patterns that are actually easy to assemble, with color codes, counts, and print pagination
Problem
Shrinking a photo into pixel art is easy, but finishing it by hand is another story: too many colors means painful sorting, while losing a few cells on a face ruins likeness. Free tools only care about looking right, not whether it's awkward to assemble.
Solution
Convert images into bead patterns in the browser, automatically reducing color count, merging similar codes, and generating a bill of materials with coordinate grids. Supports color editing, PNG/CSV export, A4 pagination printing, and mobile viewing; paid Q-version redraw for people and pets.
Automatically track changelogs of APIs you depend on and warn about breaking changes early
Problem
A company spent weeks digging into breaking changes across third-party APIs; vibe-coded and agent-generated code also hallucinates endpoints or model names that don't exist, and with more tools in production the churn only grows.
Solution
Subscribe to changelogs/RSS/release pages of services you depend on, use an LLM to classify entries as breaking/deprecation/addition, match against your dependency list, and push to Slack/email. Also check that endpoints called in your code actually exist against official docs.
Group identical node processes by agent session so you can see who's heating up your Mac
Problem
When running multiple coding agents, the Mac hits 70°C with fans at full speed, but Activity Monitor shows a dozen identical node processes and you can't tell who's responsible. The culprit is often an agent that's been running for two hours, and you don't want to kill it because you'd lose context.
Solution
A menu bar tool that groups process trees by rootPid into 'sessions', showing total CPU of each process tree and its trend per row. It can move a suspicious session to efficiency cores without interrupting it, and provides session-level history curves to catch intermittent spikes.
Hold a hotkey, speak, and get AI-polished text at your cursor
Problem
Users want a voice input utility not tied to an IME: hotkey to invoke, hold to speak, release to output—rather than some tools' tap-to-convert flow. Open-source options lack Chinese-focused tuning, FluidVoice mainly targets Western communities, Handy uses Rust but wraps a WebView, and WeChat's built-in voice input relies on the cloud and only works inside WeChat.
Solution
A local-first macOS voice input tool: hold a hotkey to record, transcribe via local or switchable ASR models, then polish with AI (punctuation, spoken-word cleanup, tone presets) and insert directly at the cursor—optimized for Chinese-first scenarios.
Bring every waiting coding agent across machines into one window
Problem
Developers run Claude Code, Codex, and other coding agents on a Mac, a build machine, and a server at the same time; each agent stops for a yes before deploy, delete, or install. The yes takes two seconds, but figuring out which machine is waiting can eat the whole evening—switching windows, scrolling back, judging if it's stuck or just quiet, then SSHing in. With more machines, you become the router.
Solution
A single-window desktop console that aggregates coding agent sessions across machines, automatically identifying who is working, who is waiting for confirmation, who finished, and who is idle—highlighting waiting sessions and letting you jump in and confirm or type with a few keys.
Alert when your egress IP changes and avoid AI service bans
Problem
Users of Claude Code and similar AI services get banned when their egress IP silently jumps to another region, gets flagged as a datacenter or proxy, or IPv6 bypasses the tunnel—only discovering the network issue after the fact. Web-based IP checkers show only the current moment, with no continuous monitoring, timeline, or comprehensive check for DNS leaks and split-routing inconsistencies.
Solution
A menu bar macOS network sentinel that periodically checks egress IP and region, notifies and logs changes to a timeline, and offers a one-click network health check covering local machine, DNS, egress, IP reputation, and target sites—surfacing IPv6 bypass, DNS leaks, and timezone-egress mismatches with fix suggestions.
Securely sync unfinished code changes across home, office, and laptop
Problem
Developers switch between multiple computers daily and often have unfinished tasks they don't want to commit or forget to commit, so code isn't synced when they switch devices. Syncing entire projects with .git directories via Nextcloud often throws errors and creates unnecessary files, while users still want full git history for lookup and rollback.
Solution
A lightweight sync tool for multi-device developers that encrypts and syncs uncommitted workspace changes (including stashes and WIP branches) to private storage, then restores them on another device as WIP commits or draft branches—without polluting main branch history and preserving full git records.
Find the background process secretly eating your disk and fix it
Problem
Mac users often find their disk mysteriously full without knowing which app is generating junk. One user discovered ToDesk's background process crash-looping and writing 1MB .dmp files repeatedly under /Library/Application Support—deleting them didn't help until an update; another only realized ToDesk was eating 188GB when the drive filled up. The built-in storage overview gives almost no visibility into developer caches, logs, or crash dumps.
Solution
A macOS disk attribution tool that aggregates the fastest-growing files by process and directory tree, focusing on crash dumps, logs, caches, container images, and AI models. It proactively flags abnormal generation patterns (like a process repeatedly writing .dmp files) and suggests safe cleanup and upgrade paths.
External health checks for side projects that catch 'looks online but is actually broken' issues
Problem
An outside-in check of 649 public apps found many 'live' apps that had quietly stopped working, especially unattended side projects and demos. Indie developers rarely keep validating key flows externally after publishing and often lose users before hearing about failures.
Solution
After registering a site, the tool periodically runs key user paths (homepage, signup, login, payment, etc.) from the outside, compares screenshots, and alerts via email or webhook on silent failures, including step replays and likely causes.