Tools for spreadsheets and formulas — Data stays with you

Sheet Insights BI

LiveWatched 11d

A tool that turns an Excel or CSV file into an interactive in-browser dashboard with forecasting and stats, without uploading your data anywhere.

Data stays with you

What to know▼

How it works: generates executive summary, trend forecasting and data cleaning entirely client-side
What's different: data never leaves your device

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MoneyMap

LiveWatched 24d

A paycheck-cycle budgeting app that links to 12,000+ banks but keeps your financial data encrypted on your device, with optional syncing to a partner.

Data stays with you

What to know▼

How it works: Automates paycheck-centric budget tracking by connecting to 12,000+ financial institutions.
What's different: Financial data stays on-device with end-to-end encryption, while still supporting secure syncing and account sharing with a partner.
Best for: People who want bank-linked budgeting without giving up data privacy, instead of using spreadsheets.

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Fieldwork

LiveWatched 11d

An open-source, self-hosted job-search tracker replacing spreadsheets, with a pipeline kanban, daily action queue, and AI scorecards.

FreeData stays with youOpen source

What to know▼

How it works: Self-host on your own free Supabase project; includes kanban pipeline, resume studio, and interview prep tools
What's different: Self-hosted so your job-search data stays yours
Pricing: Free, MIT licensed

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WA+

LiveWatched 23d

A browser extension that reads a WhatsApp Web group's member list from your browser and exports it to CSV or JSON, nothing is sent to a server.

Data stays with youCan export my data

What to know▼

How it works: A browser extension that reads a WhatsApp Web group's participant list directly from your browser's IndexedDB and exports it to CSV or JSON.
What's different: Runs entirely locally with no external servers, unlike other scrapers.
Best for: People who need a WhatsApp group's member list exported without uploading data anywhere.

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CSV Viewer

LiveWatched 23d

A free, no-signup tool to open, edit and export CSV or Excel files right in your browser, processed locally. A quick alternative to opening a full spreadsheet app just to peek at a file.

FreeNo sign-upData stays with you

What to know▼

How it works: Open, view, edit and export CSV files (and Excel files) directly in the browser, with processing done locally.
What's different: No signup and no file upload — everything runs on-device.
Pricing: Free.
Best for: Anyone who wants to quickly view or edit a CSV or Excel file without opening a full spreadsheet app.

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How To CSV

LiveWatched 18d

60+ free browser-based CSV tools — cleaning, merging, filtering, forecasting, even a chat-with-your-data feature — that process everything locally so nothing leaves your computer.

FreeNothing to installData stays with you

What to know▼

How it works: Provides more than 60 browser-based utilities for analyzing, cleaning, visualizing and transforming CSV files, including anonymization, forecasting, merging, filtering, compression and a chat-with-your-data feature.
What's different: All processing happens in the browser, so files never leave the user's computer.
Pricing: Free.
Best for: Anyone working with CSV files who wants quick fixes without uploading data to a server.

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CSVTool.io

LiveWatched 12d

A free suite of 62 browser-based CSV tools — viewer, editor, deduping, comparison, repair, and format conversion — that never uploads your file.

FreeNo sign-upNothing to install

What to know▼

How it works: Runs locally via web workers; converts to Excel, JSON, SQL, and more; viewer handles files too large for Excel.
Pricing: Free.
Best for: Anyone cleaning or converting CSV files who doesn't want to upload data to a server.

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Invoice to Shopify CSV Parser

LiveWatched 18d

A free Chrome extension that uses AI to auto-map supplier CSV, Excel or PDF files to Shopify's import format entirely in the browser, for merchants tired of manually matching inventory spreadsheets.

FreeData stays with you

What to know▼

How it works: Reads supplier CSV, Excel or PDF files, uses AI to auto-map columns to Shopify's import format, and outputs a ready-to-import CSV, all processed locally in the browser.
What's different: Inventory data never leaves the browser.
Pricing: Free for the first 5 files.
Best for: Shopify sellers manually matching supplier inventory files to Shopify's strict CSV template.

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Datastripes

LiveWatched 24d

Turns Excel and SQL data into interactive dashboards with AI forecasting, Monte Carlo simulations and Sankey diagrams; processing happens in your browser instead of on a server.

Data stays with you

What to know▼

How it works: Turns Excel and SQL data into interactive dashboards, with AI-powered forecasting, Monte Carlo scenario modeling, and Sankey diagrams.
What's different: Processing happens in your browser instead of a server, which the product frames as bank-grade privacy.
Best for: People who want to turn spreadsheet or SQL data into dashboards without sending it to an external server.

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