Your data stays in your browser · zero network requests

Do your own research. Keep it like evidence.

QuantBlocks is an offline console for people who do their own market research — import your universe, organise it into Blocks, review with discipline, and export a Daily Brief you can keep. One file. No account. No feed.

Get QuantBlocks — $27   Try the demo
The demo is the full review loop on the sample universe — importing your own data is the paid console.
Zero network requests — open DevTools and watch. Nothing leaves your browser.
The Stack · local sessionSample
20
Records
11
Reviewed
6
Due
82%
Coverage
Stocks64%
Crypto40%
Forex75%
Coverage per Blocktrajectory →
Next best action
Review 2 high-risk records aged past their check date.
EvidenceThesisCatalystFlagCheckRev. NVAX ASML RIVN
Block strips · ranked for review, not recommendation · sample data
01 — 03

A review discipline, not a feed

01

Import your universe

CSV or JSON, by file or paste. Every row is validated and the import ends with a receipt: accepted, rejected with reasons, adjustments listed. Nothing in your data is changed.

02

Review with discipline

The Stack tells you what changed and what to open next. Work each evidence file: review, watch, snooze (returns later), set aside (parked, not deleted). Notes stay on the record.

03

Keep the Brief

Export a Daily Brief — a printed front page of your research state: what changed, top of the queue, your watchlist. Sample data is stamped as sample data.

Inside the console

Evidence, freshness, coverage — computed from your own records

Block strips. The Stack opens on a compact, block-level decision surface — coverage, freshness, attention and a trajectory sparkline per Block. No market table, no noise.
Evidence coverage matrix. Records × evidence fields, with orange-ringed gaps. Gaps lower Data Coverage — you see exactly where the work is.
Evidence File. Each record opens to a rich instrument band — Research Direction, confidence, a trajectory and factor read, evidence balance, notes and a provenance chain of custody.
Decision Log. A dated ledger of every review action, kept locally. Research history — not a trade record.
Signals. Research dispatches — high risk unreviewed, check date passed, stale review, evidence gap. Items worth reviewing, never instructions to trade.
Block Intelligence Console. Each Block opens on a charted console — coverage & freshness rings, attention pressure, an interactive factor profile, and top research targets with trajectories.
One-time

Demo or Full — same console

Demo

The full interface on a Sample Universe so you can run the review loop before committing your own data. Reviews, notes and the Decision Log are real and saved locally.

  • Every surface, fully interactive
  • Sample records to explore
  • No account, nothing to install
Try the Demo
Full — $27

Import My Data and review your own universe. One file, one payment, yours to keep. Demo and Full use separate local storage and never mix.

  • Import CSV / JSON, keep custody
  • Export & backup anytime
  • One-time $27 — no subscription
Get Full — $27
No account One-time file No subscription No network requests in the app Your data stays in your browser

Twenty-seven dollars. One file. Yours.

Delivered as a single HTML file. Download it, keep it, run it locally in your browser. No installer, no account, no subscription, no expiry.

one file · no account · no subscription · no expiry
The demo — free

The full review loop on the sample universe: the Stack, specimen sheets, evidence files, registers, Decision Log, Brief preview. Your reviews and notes are real and stay in your browser.

The full console — $27

Everything in the demo, plus My Data: CSV & JSON import with a receipt, add / edit / archive, provenance on every record, exports, backups, and the Daily Brief on your own universe.

One-time$27No subscription
Requisition · full console
  • The complete offline console, single file
  • My Data — CSV & JSON import with a receipt
  • Add · edit · archive — never hard-deleted
  • Daily Brief on your data
  • Provenance kept on every record
  • Export & backup anytime
Get QuantBlocks — $27 Try the demo first
Early-access pricing · educational & research tool — not financial advice
FAQ

Plain answers

What exactly do I get for $27?

The full QuantBlocks console as a single HTML file. Open it in any modern browser — no installer, no account, no subscription, no expiry. It includes the complete My Data workflow: CSV & JSON import with a receipt, add/edit/archive, exports and the Daily Brief. Your data stays in your browser unless you export it.

Does it connect to my accounts or place trades?

No. QuantBlocks never connects to a brokerage, never places trades, and never gives buy/sell signals. It is a research organisation tool: it helps you review your own work.

Is my data private?

Yes — structurally, not by promise. The app makes zero network requests. Open DevTools and watch: nothing leaves your browser. Your records are kept in local browser storage and in the files you export.

What file formats work?

CSV (with a header row) or JSON — a QuantBlocks JSON export round-trips straight back in, provenance included. Import by file or paste. Every import ends with a receipt.

What is a Signal here?

An item worth reviewing — high risk and unreviewed, a check date passed, a stale review, an evidence gap. Signals are never instructions and never predictions.