Open and orient.
Choose a file or folder with the native picker. See source information, field types and a bounded first page.
Open your first datasetYour files. Your machine. Your workflow.
Big files.
Clear answers.
All local.
A focused desktop workspace for the data that outgrows a spreadsheet. Inspect, query and work with your files — without uploading the dataset.
Free read-only Preview · Windows validated · no card required
THE LOCAL DATA WORKSPACE01 / Inspect
RRowCoveLocal workspaceSample data
▤ market_sample.parquet+
⌕ Find loaded rowsFilters 2QualityChartSave copy
| # | symbol | timestamp | close | volume |
|---|---|---|---|---|
| 1 | BTCUSDT | 09:30:00 | 67,420.50 | 12.83 |
| 2 | ETHUSDT | 09:30:00 | 2,645.12 | 184.60 |
| 3 | SOLUSDT | 09:30:00 | 154.82 | 2,180.40 |
| 4 | BTCUSDT | 09:31:00 | 67,438.20 | 10.52 |
| 5 | ETHUSDT | 09:31:00 | 2,646.08 | 162.84 |
| 6 | SOLUSDT | 09:31:00 | 154.94 | 1,925.72 |
● Local processingBounded pages · original read-only
CSV · JSONL · Parquet · Arrow · SQLite · DuckDBReader capabilities →
Rust at the coreNative parsing and querying
Only what you needBounded pages and virtualized views
Originals stay intactReversible edits, separate copies
AI, on your termsAuthorized local MCP tools
Less setup. More understanding.
One workspace.
From file to finding.
Bring the files you already have. RowCove detects the source and keeps the next useful step within reach.
Ask better questions.
Project the fields you need, narrow a symbol or time range, inspect records and check data quality.
Explore real workflowsKeep the evidence.
Follow results back to source records. Stage reversible changes and export a separate copy where the reader supports it.
Work safely with editsThe actual desktop app
A workspace you can inspect.
Data tools, source context and complete values in one place. This is the real Windows client with built-in generated sample data.
Designed for the large-file reality
Keep the work moving.
Keep the browser small.
Rust owns the heavy work. The interface receives bounded results, not an entire dataset. Column projection, partition pruning and disk-backed preparation reduce unnecessary work.
Inside the performance model01Local sourceFiles, shards, database tables
↓02Rust data engineDetect → project → query → page
↓03Focused desktop viewBounded records, explicit progress
AI client ↔ RowCove MCP
1. Discover the source and schema
2. Request a bounded query
3. Inspect returned rows + provenance
4. Verify the finding in RowCoveYour AI client's data policy still applies.
A practical bridge to AI
Give your assistant tools.
Keep your files local.
Connect an MCP-compatible client to RowCove's authorized local server. Inspect tool schemas, test calls, and review wire logs and history before building a workflow.
Explore the MCP workflowStraightforward pricing
Start free.
Go deeper with Pro.
A local desktop product with a subscription for Pro capabilities. Sign in with your purchase email to activate and restore.
Preview
Get to know your data.
$0 / forever
No account. No card. Start with your own file.
Check Preview availability- Supported source discovery and schema
- Read-only first page, up to 100 records
- Inspect nested values and field types
- Your original file stays untouched
Pro
For everyday data workGo from inspection to insight.
$15 / month
Or $150 / year — save $30 annually.
- Query, filter, sort and browse beyond Preview
- Data quality, charts and schema comparison
- Stage edits and save a separate copy
- Local MCP tools for your AI workflow
- Three active devices; manage them in Account
Renews automatically. Cancel renewal anytime. Billed upfront for the selected period. Final tax and total at checkout.
What is RowCove?
RowCove is a local data workspace for inspecting, querying and safely editing data files on your computer. The desktop app uses Tauri, React and a Rust data engine.
Does RowCove upload my files?
The desktop data engine processes files locally. Account services receive your email and purchase status, not your datasets. If you connect an AI client through MCP, the tool results you request are shared with that client and may reach its model provider.
What does Preview include?
Preview is free and does not need an account. Inspect supported file information, schema and up to 100 records in a read-only first page. Pro adds full-file workflows and MCP; available operations depend on the reader.
How much does Pro cost?
Pro costs US$15 per month or US$150 per year. The yearly plan is billed upfront and saves US$30 compared with twelve monthly payments. Applicable taxes and the final total are shown at checkout.
Can I cancel my subscription?
Yes. Open Account and choose Manage subscription. Cancel renewal in the Paddle portal. Access continues through your paid period; approved full refunds revoke the refunded purchase.
How does offline access work?
After activation, the app keeps a device-bound signed license. It refreshes online. Licenses last up to three days with up to one extra day of offline recovery, never beyond the paid subscription end. Reconnect periodically to keep Pro active.
Which platforms are available?
Windows is the currently validated desktop platform. macOS support is planned in the Tauri implementation; Mac release acceptance is still pending. Check the release page for published builds.
Is every listed format fully editable?
No. Reader capabilities differ. CSV, JSONL, Parquet and Arrow have table workflows; database sources have explicit table selection. Some scientific and training formats currently expose metadata or archive members rather than decoded samples. See the format guide.
Your next dataset is already on disk
Make sense of it.
Start with Preview. Upgrade when your workflow needs more.
Windows testing builds. macOS release acceptance pending.