Track your precious metals stack. Your way.
Launch App • Beta • About • Changelog
A powerful, privacy-first portfolio tracker for Silver, Gold, Platinum, Palladium, and Goldbacks. Runs entirely in your browser — your stack, your data, your rules.
| Vendor Price Matrix | Item View Modal |
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| Settings — About | Appearance | Inventory |
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- Trade linking — bidirectional links between disposed-traded items and received inventory with editable provenance, spot-derived trade values, undo support, and cloud-sync visibility (STRK-123)
- Cloud sync hardening — tag merge on sync, conflict-loop fix after accepting remote changes, Bullion Exchanges content-quality retry (STRK-106, STRK-107, STRK-108)
- Retail & autocomplete fixes — SDB/BE spot-ticker sidebar leak patched, autocomplete field name casing corrected (STRK-99, STRK-114)
- Test infrastructure — full Playwright suite consolidation from 7 scattered spec tiers into compact domain suites with archived historical coverage (STRK-97 → STRK-122)
Full details in the Changelog.
Most precious metals apps want your email, store your data on their servers, or lock features behind a paywall. StakTrakr is different:
- 100% client-side — all data lives in your browser. The full source is open; it even runs on
file://from a single HTML file. - Zero data collection — no account, no email, no profile. Nothing leaves your device unless you explicitly cloud-backup.
- Works offline — once loaded, the app runs without internet (spot prices require connectivity).
- Portable & free — download the ZIP, open
index.html, runs anywhere, forever. MIT licensed.
Optional sponsorships keep the free API infrastructure running.
Real-time prices from multiple providers with automatic failover. The free, keyless api.staktrakr.com works out of the box; add Metals.dev, MetalPriceAPI, GoldAPI, or a custom URL for higher-frequency updates. Manual mode supports fully offline pricing. Sparkline charts with 7d/30d/60d/90d range selector, health indicators, and years of seed history (1968–present) baked in.
For retail, a Best Price Ticker highlights the cheapest vendor per coin with direct buy links. The Vendor Prices Matrix compares Gold, Silver, Platinum, Palladium, and Goldbacks across major bullion dealers with premium badges and clickable product-page links. Click any coin to see a TradingView chart overlaying spot history with per-vendor price lines.
Rich per-item data model: Purchase Price / Melt / Retail with computed Gain/Loss (per item and portfolio-wide); realized gains/losses via Sold / Traded / Lost / Gifted / Returned dispositions with full transaction history; lot ⇄ each purchase toggle; troy ounces / kilograms / pounds with auto-conversion; year, grade, grading authority, cert # for graded coins; serial numbers for bars and notes; per-item notes, photos (your own or Numista CDN), price history, and storage location. Goldback and Silverback support with denomination-aware pricing.
Four card styles (sparkline header, full-bleed image, split layout, accessible table) plus a sortable table view with thumbnails and inline chip badges. Smart filter chips auto-generate from your collection across 10 configurable categories (Metal, Type, Name, Year, Grade, Numista ID, Source, Storage, etc.) with custom grouping rules, save-search-as-chip, and right-click blacklist. Tags — both Numista-synced (Bullion, Proof, Commemorative) and your own — integrate with filters and global rename/delete.
Numista search by name, country, or catalog number; bulk metadata + CDN image sync with progress log; regex pattern rules for auto-matching catalog IDs to your item names. PCGS lookup by number with form auto-fill; cert verification badges link directly to PCGS/NGC. Per-field origin tracking shows whether each field came from Numista, PCGS, CSV import, or manual entry — and powers a two-tier re-sync picker with smart defaults. The Item View Modal combines price history charts (melt + retail, 1Y/5Y/10Y/Purchased/custom range), Numista metadata, tags, certification badge, and disposition history.
Connect Dropbox via OAuth PKCE and sync an encrypted .stvault across devices. AES-256-GCM + PBKDF2-SHA256 (600,000 iterations) via the Web Crypto API — the cloud provider only ever receives ciphertext. Bi-directional sync with conflict detection; a DiffModal for visual item-level and settings-level review with click-to-pick field selection; encrypted image vault for photo sync; BroadcastChannel leader election prevents concurrent multi-tab races; multi-account switching; backup-before-overwrite with configurable history depth. Google Drive, OneDrive, pCloud, and Box are coming (same encryption, all client-side).
CSV import with intelligent field mapping, regex custom rules, and merge/override modes (DiffModal preview). Export as CSV, JSON, PDF, or full ZIP backup. Encrypted .stvault exports with password strength meter. Spot history import/export between instances. Inline clone with Save & Clone Another; full-screen Bulk Edit in Settings → Inventory with searchable checkbox table, 16 fields editable at once, bulk copy/delete, and Numista Lookup populating fields from catalog data.
Everything in one place with sidebar navigation:
| Tab | What's Here |
|---|---|
| About | Version info, API status badge, What's New, badges, changelog, force refresh |
| Appearance | Theme (Light / Dark / Slate / Sepia), header button visibility and reorder, layout section toggles |
| Inventory | Card styles (A/B/C/D), default sort, visible rows, import/export/backup controls, bulk edit, data reset |
| Filters | Category toggles, sort order, grouping rules, blacklist, max chip count, search behavior |
| Images | Image cache management, upload settings, bulk image sync |
| Currency | Display currency (17 currencies), exchange rates, Goldback pricing controls |
| Market | Market data toggles, vendor display preferences |
| Storage | localStorage and IndexedDB usage dashboard |
| API | Spot price source selection, Numista and PCGS catalog integration, usage tracking |
| Cloud | Dropbox connection, cloud backup/restore, sync history, multi-account management |
| Log | Activity Log — full change history with undo/redo |
| FAQ | Privacy, backup, security, and limitations — built into the app |
Also: PWA install, 17-currency support with live exchange rates, fuzzy search across all fields, shift+click / long-press inline editing, timezone-aware display, three-state disposed filter, and environment badges (BETA / PREVIEW / LOCAL) on non-production domains.
Open www.staktrakr.com for the hosted version, or download a release ZIP, extract, and open index.html in any modern browser — no server required. For local development, python3 -m http.server 8000 works fine. StakTrakr ships with sample inventory and years of spot history so every feature is explorable on first launch; sample items are clearly labeled.
Two optional integrations enhance the experience: a free Numista API key enables catalog search, image population, and metadata sync; a free PCGS API key enables PCGS lookup and cert verification. Both are configured in Settings → API.
- No server-side component — the developer has no technical means to access your data.
- No cookies, no tracking SDKs, no advertising — only localStorage and IndexedDB are used for your data.
- Cloud backup is zero-knowledge — AES-256-GCM + PBKDF2-SHA256 (600,000 iterations); the cloud provider receives only ciphertext.
- localStorage caveat — browser storage can be cleared. Export ZIP or vault backups regularly, especially on iOS Safari.
- Cloudflare Web Analytics runs on the hosted site (aggregated, anonymous page-views only — not present when running locally).
Full details in the Privacy Policy and the FAQ tab in Settings.
| Layer | Technology |
|---|---|
| Runtime | Pure client-side JavaScript (no framework, no build step) |
| Storage | Browser localStorage + IndexedDB |
| Encryption | Web Crypto API — AES-256-GCM via PBKDF2 |
| Styling | Vanilla CSS with CSS custom properties (oklch token system), four themes |
| Charts | Chart.js 3.9.1 + TradingView Lightweight Charts |
| CSV / PDF / ZIP | PapaParse 5.4.1, jsPDF 2.5.1 + AutoTable 3.5.25, JSZip 3.10.1 |
| Hosting | Cloudflare Pages |
| Spot API | api.staktrakr.com (free, keyless) + Metals.dev, MetalPriceAPI, GoldAPI, others |
| Market API | api.staktrakr.com v2 (free, keyless) — retail prices from major bullion dealers |
| Catalog | Numista API, PCGS CoinFacts |
| Exchange Rates | Open Exchange Rates |
| Security tooling | Codacy (A+), CodeQL, Semgrep, PMD, ESLint |
Bug reports and pull requests are welcome — please open an issue first to discuss significant changes. The app must remain a zero-install, single-page, vanilla JS application: no build step, no framework, runs on file://. Development tooling lives in devops/.
MIT License. See LICENSE.
- Reddit: r/staktrakr
- Issues: GitHub Issues
- Sponsor: GitHub Sponsors