Building a Zero-Framework, Local-First PWA to Combat Web Bloat
Stephen Sebastian developed QuickConvertUnits, a lightweight, ad-free Progressive Web App designed to provide fast unit conversions without the bloat of traditional web calculators. Built with native HTML5, CSS, and vanilla JavaScript, the app operates entirely offline using service workers and prioritizes user privacy with no backend or tracking. The project emphasizes performance, minimalism, and efficient use of modern browser capabilities.
- ▪QuickConvertUnits is a zero-framework, local-first PWA for unit conversion that runs completely offline.
- ▪The app uses native web APIs, avoiding external libraries or frameworks to maintain speed and privacy.
- ▪It supports multiple languages through a lightweight JSON-based i18n system without increasing initial load size.
- ▪No user data is sent to servers, and all calculations are performed client-side for instant results.
- ▪The developer invites feedback on handling floating-point precision in JavaScript without heavy math libraries.
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Story provenance
Source · retrieval · rights · ranking — open for full record
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Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/stephen_sebastian_c85ea2b/building-a-zero-framework-local-first-pwa-to-combat-web-bloat-1cc |
| Publication time | Sun, 17 May 2026 11:00:34 +0000 |
| Retrieval time | 2026-05-17T11:22:13.108Z |
| Last seen | 2026-05-17T11:22:13.108Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | jLGHljkLa3ei |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3936117) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Stephen Sebastian Posted on May 17 Building a Zero-Framework, Local-First PWA to Combat Web Bloat #javascript #showdev #beginners #webdev Hey dev.to community! 👋 I want to share an indie engineering project I’ve been building over the last few weeks: QuickConvertUnits. It’s a fast, ad-free, local-first unit conversion utility designed to solve a personal frustration I had with the modern web ecosystem.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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