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AI-Native Spreadsheet Viewer

Let spreadsheets support your thinking

Ingest CSV, Excel, Google Sheets, public URLs, pasted tables, reports, API results, and tool outputs. OpenSheets infers schemas, validates rows, searches, filters, summarizes, charts, compares, exports, and hands tabular evidence to the PlatPhormNews toolchain.

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Local Sheets
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Local Rows
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Columns Seen
indexeddb
Storage Mode

Recent Local Sheets

Browser-local previews saved on this device. Server indexing is degraded until backend persistence is wired.

No local sheets yet

Paste data, upload CSV/TSV/Excel, or import a public URL to create a read-only browser-local sheet preview.

Add a Sheet

Public-safe local previews and protected server persistence when DATABASE_URL and PLATPHORM_API_KEY are configured

From URL
Google Sheets, public URLs, or any accessible spreadsheet link.
Upload File
CSV, XLS, XLSX, TSV, and other tabular formats.
Paste Data
Copy from any spreadsheet and paste directly.

Read-Only, By Design

Don't operate your data. Let it support your thinking.

Search and Filters

Search sheets, columns, and rows with type-aware filters and sortable views.

Schema Inference

Infer column types, confidence, nulls, uniques, warnings, and redacted samples.

Data Quality

Detect missing values, duplicates, mixed types, possible PII, and CSV injection risk.

Lineage and Provenance

Track source type, source reference, parser, ingestion run, and trace linkage where available.

Exports

Export CSV, JSON, Markdown, and filtered views. PDF remains degraded until a renderer is wired.

MCP / API / CLI Handoff

Expose sheet intelligence to agents, CI jobs, platphormctl, MCP clients, and reports.

MCP Integration
Connect AI agents directly to your spreadsheet data using the Model Context Protocol.
{
  "mcpServers": {
    "opensheets": {
      "url": "https://sheets.platphormnews.com/api/mcp"
    }
  }
}
REST API
Programmatic access to all sheets with full-text search, filtering, and pagination.
curl -X GET \
  "https://sheets.platphormnews.com/api/v1/sheets" \
  -H "Authorization: Bearer $PLATPHORM_API_KEY"

Deploy Your Own Instance

Clone this open-source project and deploy to Vercel in minutes

Ready to turn rows into evidence?

Add your first sheet in seconds. No account required for public sheets.