All notable changes to OmniConvert are documented here.
This page is rendered at `/{locale}/updates/` for public visibility.
v0.5.2 — 2026-02-13
📝 Content Depth 3.5x Expansion
SEO article content: 122 → 450 words per page (English average)
New sections per page: Category Context, Common Mistakes, Pro Tips
10 category-specific context paragraphs × 4 languages
30 unique "common mistakes" descriptions (3 per category × 10 categories)
Quick reference values with computed conversions
Real-world examples integrated into article body
Zero English leakage on non-English pages (i18n labels fixed)
v0.5.1 — 2026-02-13
🌍 Real-World Examples — 365 Life Scenarios
86 conversion pairs × 3-5 real-world examples each = 365 scenarios
Travel: airline luggage limits (23kg/32kg), liquid restrictions (100ml), body temperature screening
Cooking: oil bottles (5L), beer packs (330ml×6), US recipe cups/tbsp
Fitness: body weight (kg/lb), running distances (km/miles), pool lengths
Real estate: room sizes (m²/ft²), renovation measurements
Automotive: tire pressure (bar/psi), fuel tanks, speed limits
All examples with 4-language descriptions (en/zh/ja/es)
Pre-computed conversion results for instant display
v0.5.0 — 2026-02-12
🌐 Domain Launch & Full Site Audit
Custom domain: Deployed to `tools.sagasu.art`
Language selector: Root page language chooser (no auto-redirect), nav bar globe dropdown
Mobile responsive: Hamburger menu, vertical unit converter layout on small screens, touch targets ≥ 44px
Copy to clipboard: Result field copy button with full-precision raw value
96 units audited: NIST SP 811 naming (Degree Celsius, Millimeter of Mercury, etc.)
FAQ singular/plural fix: All 86 conversion pairs × en/es corrected ("1 foot" not "1 feet")
i18n quality: Japanese copyright translated, Chinese naming fixes (吨, 间)
SEO fixes: hreflang deduplication, JSON-LD (WebSite + Organization), /convert/ hub page, root page meta tags
Legacy migration: All old pages → locale redirects, zero non-locale pages remain
New pages: /convert/ index hub (4 langs), /wiki/ locale pages (44 pages)
404 page: Custom not-found page with navigation
Favicon + OG image: Branded assets for social sharing
Total: 651 pages across 4 languages
5 full audits completed: Unit names, mobile UI, i18n quality, SEO technical, landing page structure
v0.4.0 — 2026-02-12
🔢 Unit Converter Launch — 76 Conversion Pairs
New product line: unit conversions alongside file conversions
10 categories: Length, Mass, Temperature, Volume, Area, Speed, Energy, Pressure, Power, Time
85 units with NIST SP 811 exact conversion factors
76 popular conversion pairs × 4 languages = 304 conversion pages
Interactive UnitConverter component with real-time calculation
Reference conversion tables (12 rows per pair)
Temperature: hardcoded non-linear formulas (°C/°F/K)
Category hub pages (10 × 4 langs = 40 pages)
Main unit hub page (4 langs)
JSON-LD: WebPage + BreadcrumbList + FAQPage per page
NIST Exact badge for mathematically exact conversions
Total site pages: 191 → 539 pages
4966 unit tests passing (NIST exact values + round-trip)
v0.3.0 — 2026-02-12
🆕 6 New Image Formats
Added GIF, BMP, AVIF, SVG, ICO, TIFF as input formats
All new formats convert to JPG, PNG, WebP, and PDF
Total conversion pairs: 11 → 35
Total pages: 44 → 140 (across 4 languages)
🎨 Landing Page Redesign
Upgraded from 7 to 12 sections per conversion page
New: Before/After conversion preview
New: Feature Showcase with indigo gradient brand section
New: Bottom CTA with scroll-to-converter anchor
New: "More Conversion Tools" grid with all 35 pairs
Emotional hero titles in 4 languages
4 value prop icons: 🔒 Privacy / ⚡ Speed / 📴 Offline / 🎯 Quality
WebPage JSON-LD schema (5 total schemas per page)
v0.2.1 — 2026-02-11
🔍 SEO Deep Optimization
FAQ section: 5 Q&A per conversion pair × 4 languages + FAQPage JSON-LD
Cross-links: "Same source" + "Same target" converter navigation
Article expanded: 129 → 389 words (6 H3 sections)
Format comparison table with technical specs
HowToSteps visual 3-step cards
Visual polish: styled tables, card grids, tip boxes, numbered steps
📊 Competitive Analysis
Analyzed Canva, Convertio, FreeConvert, CloudConvert, Online-Convert
Documented 3-tier SEO funnel architecture from Canva templates
v0.2.0 — 2026-02-10
🚀 Sprint 1 Complete
Core image conversion engine (Canvas API)
Web Worker isolation for non-blocking conversion
Dropzone component with 5-state flow
SEO matrix: 11 conversion pairs × 4 languages = 44 pages
Full i18n system: 50+ translation keys, zero English leakage
JSON-LD: SoftwareApplication + HowTo + BreadcrumbList per page
hreflang: 5 groups (en/zh/ja/es + x-default)
Deployed to Cloudflare Pages: omni-convert.pages.dev
🏗️ Architecture
Monorepo: apps/web (Astro) + packages/converter-core + packages/seo-matrix
Client-side only: zero server processing, 100% browser-based
Cloudflare Pages free tier deployment
v0.1.0 — 2026-02-09
🌱 Project Initialization
Astro + React + Tailwind CSS setup
Cloudflare Pages adapter
Basic project structure and documentation
This changelog is part of OmniConvert's commitment to transparency.
For technical details, see our [GitHub repository](https://github.com/omni-convert).*