Tell us what you wish existed. Other people upvote the ones they want too — the most-wanted requests rise to the top. Builders check this board for ideas worth making.
Describe what you need. If someone's already built it, we'll try to match you. If not, your request stays here for builders to find.
These are real requests from real people. The most-upvoted ones are validated ideas. Build one, click "I built this," and the requester gets notified.
I need to send invoices to 2-3 clients a month. Every invoice tool wants me to create an account. I just want to fill in: my info, client info, line items with amounts, and download a PDF. Save my info in localStorage for next time.
I regularly export data as CSV and need to import it as JSON. The existing online converters only do flat key-value mapping. I need one where I can specify which columns become nested objects (e.g., address.street, address.city) and which stay flat. Bonus if it can auto-detect nesting from dot-notation column headers.
I want a simple Pomodoro timer (25/5 default, configurable) that keeps a local log of my sessions — start time, end time, what I was working on — and lets me download the log as CSV. All existing Pomodoro timers either require signup or don't track history.
Upload a photo, extract the 5-8 dominant colors as a palette. Show hex codes, copy-to-clipboard for each. Existing tools like Coolors do random palettes — I want one specifically from my own images. Client-side only, no upload to a server.
Paste markdown, get a well-typeset PDF with proper headings, code blocks with syntax highlighting, and a clean serif font. The existing md-to-pdf tools produce ugly output. I want something that looks like a LaTeX document but from Markdown input.
Paste two JSON objects, see a colored diff showing what was added, removed, and changed. Should handle nested objects and arrays intelligently — not just line-by-line text diff. Would be great if it could ignore key ordering differences.
A regex tester where I can type a pattern and it explains each part in plain English ('this matches one or more digits followed by an optional dash'). And the reverse: I type what I want to match in English and it suggests the regex. Real-time testing against sample text.
Most QR generators give you a boring black-and-white square. I want one where I can pick foreground/background colors, round the dots, and overlay a small logo in the center — all while maintaining scan reliability. Download as SVG or PNG.
I pick a heading font (from Google Fonts or upload a .woff2) and the tool suggests 3-5 body fonts that pair well with it, with live preview of both together. Show me the pairing in a sample layout (article, landing page, card).
Enter the number of attendees and their average hourly rate. Hit start when the meeting begins. Watch the cost tick up in real-time. Show total at the end. The kind of thing that makes people think twice about scheduling another 'quick sync.'
I always forget cron syntax. I want to pick from dropdowns (every day at 3pm, every Monday at 9am, first of the month) and see the cron expression generated. And the reverse — paste a cron expression and see 'runs every Tuesday at 14:30 UTC' with the next 5 execution times.
I ship small tools that don't collect data, but I still need a privacy policy page for app stores and compliance. Generate a minimal, honest privacy policy: 'This tool runs entirely in your browser. No data is collected, stored, or transmitted.' Let me customize the tool name and URL.
I record voice notes and podcasts. I just need to trim the first 5 seconds (intro noise) and the last 10 seconds (outro). No need for a full DAW — just a waveform, drag the start/end markers, and download. All client-side, no upload.
Paste a URL and see it rendered at mobile (375px), tablet (768px), laptop (1024px), desktop (1440px), and ultrawide (1920px) side by side. Live — not screenshots. Like Chrome DevTools responsive mode but all sizes at once.
Track 1-3 daily habits. Each day is a square — green if done, gray if missed. Show the full year as a GitHub-style heatmap grid. All data in localStorage, no account needed. Export as image for sharing. Simple, motivating, visual.
