Project ideas from Hacker News discussions.

HTML Can Do That

šŸ“ Discussion Summary (Click to expand)

1. Native HTML controls are often insufficient

"Just a heads up but datalist is not really a great solution if you need a strong contract. The user can still type whatever they want into the field and there is no fuzzy filtering or typo mitigation." — yurishimo

"HTML can NOT, in fact, replace a good combobox with search input. Datalist has significant shortcomings." — vlucas

2. Preference for minimal JavaScript / progressive enhancement

"Single page applications are one of the most annoying web patterns I know of. Please just let me have one page for each thing to do so I actually can bookmark it properly." — gunalx

"HTML can do a lot of cool stuff; it might get you 100 % of the way depending on what you're doing. But if you need fuzzy filtering or better UX, a small library or sprinkle of JS (e.g., HTMX) is often still required." — yurishimo

3. Front‑end validation vs. backend validation debate

"That's the whole sanitize vs. validate argument debate that keeps coming up." — reaperducer

"You still have to validate what the browser gives you. The user could have edited the 'strong contract' using browser dev tools." — honr


šŸš€ Project Ideas

Generating project ideas…

FuzzySelect

Summary

  • Searchable, fuzzy‑matching combobox that degrades to <datalist>/<select> while enforcing a strict contract on input.
  • Eliminates manual validation work by pre‑filtering and auto‑completing user entries.

Details

Key Value
Target Audience Frontend developers building forms with dropdowns; product teams needing strict data contracts
Core Feature Fuzzy/type‑ahead search, typo tolerance, contract enforcement, native fallback
Tech Stack Vanilla Web Components, optional HTMX integration, CSS custom properties
Difficulty Medium
Monetization Revenue-ready: Subscription tier for premium themes & analytics

Notes

  • ā€œJust a heads up but datalist is not really a great solution if you need a strong contract… there is no fuzzy filtering or typo mitigation.ā€ – yurishimo
  • HN users repeatedly call for ā€œsearchable drop‑downsā€ and better combobox UX.

DateSync

Summary

  • Locale‑aware date/time input that normalizes any user entry to ISO‑8601 for backend while displaying a familiar UI per user locale.
  • Prevents date‑format mismatches that cause server rejections.

Details

Key Value
Target Audience Developers of multi‑regional web apps; enterprises requiring consistent date submission
Core Feature Auto‑format UI, ISO submission, built‑in validation, fallback to <input type="date">
Tech Stack Lit/Preact Web Component, Intl API, CSS variables
Difficulty Low‑Medium
Monetization Hobby

Notes

  • ā€œI’d be okay with regional date format for the user but it always submits as ISO 8601 date format.ā€ – crote
  • Users frustrated with native pickers presenting different formats across OSes; demand a reliable, standardized solution.

SearchableDetails

Summary

  • Library that automatically makes <details> sections searchable via Ctrl+F, expanding hidden content on match and preserving accessibility.
  • Turns collapsible notes into user‑discoverable information without extra markup.

Details

Key Value
Target Audience Content‑heavy sites (documentation, wikis, product pages) using <details> for collapsible sections
Core Feature Ctrl+F expansion of hidden‑until‑found sections, ARIA‑friendly, supports multiple opens
Tech Stack Tiny vanilla JS (~1 KB), works with native HTML and HTMX
Difficulty Low
Monetization Revenue-ready: One‑time commercial support license

Notes

  • ā€œI used it for tabbed content. That way search will reveal the tab and content on page search match.ā€ – jamescun
  • Community wants ā€œhidden content to be searchableā€ – users highlighted the utility of hidden="until-found" and Ctrl+F behavior.

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