Tools that work offline, on your own device — Spreadsheets

29 match your filters — 27 of them answered our check today.

Watching this group for 20 days · how we check

This week11 new arrivals

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Developers2Freelancers1

GreenBar Systems

Live

Local-first AI tooling for finance teams' monthly close (bank reconciliation, CSV sorting, PDF parsing, cash forecasting) that keeps sensitive financial data off cloud AI services.

Domain registered 2 months ago

Works offlineData stays with you
What to know▼
How it works
Local-first AI tools for finance teams' monthly close — bank reconciliation, sorting CSV line items, parsing PDFs, and building 90-day cash forecasts — without uploading sensitive financial data to cloud AI services.

Watched for 8 days · last checked 2d ago

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Life Tile

Live

Tracks how you spend your time and displays your day as a colored Mondrian-style tile grid, fully on-device.

No sign-upWorks offlinePay onceNo subscription
What to know▼
How it works
Time entries render as a treemap/tile grid; imports CSV data from other trackers, syncs with Apple Health and Shortcuts.
What's different
Runs entirely on-device with no server, one-time purchase instead of subscription.
Best for
People who want a visual time record without sending location/usage data to a server.

Watched for 6 days · last checked 5d ago

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Fuego

Live

A net worth tracker for FIRE-minded people who manually enter balances quarterly instead of linking bank accounts, with FI-number and Coast FIRE math built in.

FreeNo sign-upWorks offline
What to know▼
How it works
Manually type in account balances periodically; the app computes net worth trends and FI/Coast-FIRE numbers
What's different
Never links to your bank accounts
Pricing
Free, no signup required to try
Best for
People pursuing FIRE who want a spreadsheet replacement without connecting bank data

Watched for 5 days · last checked 4d ago

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ClearJSON

Live

A local, privacy-first JSON viewer and formatter for developers, with JWT decoding and CSV/YAML/TypeScript export; free for everyday use, $29 one-time for Pro features.

FreeWorks offlinePay onceNo subscription
What to know▼
How it works
A JSON viewer and formatter that runs 100% locally with zero network requests, handling 100MB+ files, inline JWT decoding, and export to CSV, TSV, YAML, or TypeScript (Pro features).
What's different
Positioned as a trustworthy local replacement after a popular JSON formatter with 2M+ users was sold and turned into adware.
Pricing
Free forever for everyday use; Pro is $29 one-time, lifetime.
Best for
Developers who want a JSON viewer that never sends data over the network.

Watched for 13 days · last checked 7d ago

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AirLedger

Live

Reads your Airbnb reservations to count real checkouts and flag same-day turnarounds, so you can check a cleaner's invoice without building your own spreadsheet. Runs locally, nothing uploaded.

FreeWorks offline
What to know▼
How it works
Reads your Airbnb Reservations page to count real checkouts, flag same-day turnarounds, and track revenue by listing, so you can check a cleaner's invoice without a spreadsheet.
What's different
100% local, zero data collected.
Pricing
Free.
Best for
Airbnb hosts verifying cleaning fees against real reservation data.

Watched for 17 days · last checked 11d ago

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Handiwork.tools

Live

A free set of 52 browser tools — JSON formatting, regex testing, encryption, converters, calculators — running locally so nothing uploads. Mostly developer tools, plus general productivity ones.

FreeNo sign-upNothing to installWorks offline
What to know▼
How it works
A free collection of 52 browser-based tools spanning developer utilities (JSON formatter, regex tester, JWT decoder), security tools (AES-256 encryption, PII scrubber), converters, calculators and productivity tools, all running locally in the browser.
What's different
No sign-up, no paywalls and no limits, and everything runs locally so data never leaves the device.
Pricing
Free.
Best for
Developers and general users who want quick one-off tools without installing an app.

Watched for 15 days · last checked today

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FlashCard

Live

A free, open-source Mac flashcard app modeled on Anki but with zero setup — no account or cloud, cards stay on your Mac, fully keyboard-driven review.

FreeNo sign-upWorks offlineOpen source
What to know▼
How it works
Brings spaced-repetition flashcards to macOS with fully keyboard-driven review (Space to reveal, arrows to grade) and CSV import.
What's different
Zero setup compared to Anki — no account, no cloud, no scheduler to configure; cards stay on your Mac.
Pricing
Free and open source (MIT).
Best for
Mac users who want Anki's spaced-repetition power without its setup complexity.

Watched for 16 days · last checked 10d ago

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ScanSheet-Barcode Scanner to Spreadsheet

Live

A tool that turns your phone into a barcode scanner paired with your browser, adding rows straight into your spreadsheet in real time without installing an app.

Works offlineCan export my data
What to know▼
How it works
Pair your phone with your browser; scanned barcodes appear as rows in your spreadsheet instantly, with export to CSV, XLSX, or Google Sheets.
What's different
Local-first, data stays in the browser, with real-time WebSocket sync and unlimited phone pairing.
Pricing
Pro tier supports up to 10,000 rows per sheet.
Best for
Inventory managers, event check-ins, and library or warehouse teams.

Watched for 12 days · last checked 8d ago

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FinXtract

Live

Lets Indian accountants extract bank statements and invoices into clean data with Tally sync instead of manual data entry.

Works offline
What to know▼
How it works
AI extraction with 96%+ accuracy, automated GSTR-2A/2B reconciliation, 1-click Tally connector
Best for
CAs, accountants and finance teams in India

Watched for 1 day · last checked today

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Detectnix Vision Adult Content Scanner

Live

A Windows app that scans local image files for adult and NSFW content entirely offline, with no cloud uploads. For individuals and enterprise IT wanting to audit stored images without sending them off-device.

Works offline
What to know▼
How it works
Scans JPG, JPEG, PNG, WEBP and BMP files across selected folders (recursively in Retail and Enterprise editions) using on-device AI models to detect explicit and nude images, with results reviewable in a gallery and exportable to CSV; GPU acceleration via NVIDIA CUDA or DirectML is used automatically when available.
What's different
Entirely offline with no cloud uploads or third-party processing of scanned images.
Pricing
Available as a free trial, a one-time Retail license, or an Enterprise subscription.
Best for
Individuals and enterprise IT teams on Windows 10/11 who want to audit stored images for adult content without sending them off-device.

Watched for 16 days · last checked 10d ago

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Shopify Preflight Tools

Live

Offline browser tools for Shopify merchants and agencies to preview risky bulk CSV changes (products, customers, theme, migration) before importing.

Works offline
What to know▼
How it works
runs locally in the browser, produces a bounded report on a CSV before you import it into Shopify
Pricing
$19-29 one-time per English ZIP
Watch out
no Shopify connection or outcome guarantee, independent and not affiliated with Shopify

Watched for 4 days · last checked 3d ago

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Rehearse

Live

Tool that converts screen-recording videos of a workflow into interactive click-by-click practice exercises for training staff, with usage evidence exports.

FreeWorks offlineCan export my data
What to know▼
How it works
turns an MP4 recording into offline browser-based practice, tracks anonymous baseline/follow-up rounds, exports CSV/report
Pricing
public demo free, $1,500 Founding Pilot for 3 workflows/50 learners/30-day cycle

Watched for 4 days · last checked 3d ago

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Elite Dividend Tracker

Live

A dividend-tracking app that keeps your portfolio data only on your device, so you get payout calendars and income projections without handing your holdings to a cloud service.

No sign-upWorks offline
What to know▼
How it works
Paste holdings from a note/spreadsheet, get payout calendar and yield analytics
What's different
No account or cloud storage, works offline
Pricing
Free to start; Pro adds auto refresh, alerts, broker CSV import
Best for
Investors who don't want their portfolio data leaving their device

Watched for 5 days · last checked 4d ago

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Forma BMI

Live

Offline Android BMI calculator that saves history locally and exports it as CSV, with no account or cloud sync.

No sign-upWorks offlineCan export my data
What to know▼
How it works
enter height/weight for BMI category, healthy range, and a visual gauge; saves recent results locally
Pricing
free
Watch out
BMI is a general screening tool, not a medical diagnosis

Watched for 5 days · last checked 4d ago

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LCF Budget — Ton budget, sur ta machine,

Live

Imports French bank statements (CSV/PDF) and auto-categorizes expenses locally, without connecting to your bank.

Works offlineNo subscription
What to know▼
How it works
Imports bank statements (CSV or PDF) and auto-categorizes expenses locally, without connecting to your bank.
Pricing
Limited free version to test before buying; no subscription.

Watched for 5 days · last checked 3d ago

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BudgetZen

Live

An expense tracker and budget manager that runs on-device with AI, so you don't have to create a cloud account or link your bank details to a third party.

FreeNo sign-upWorks offlineNo tracking
What to know▼
How it works
An expense tracker and budget manager that runs 100% locally on your device, using on-device AI for spending analysis, anomaly detection, and end-of-month balance predictions — no cloud account or bank credentials required. Includes a zero-based budget mode.
What's different
Unlike traditional budgeting tools, it never requires linking bank credentials or creating a cloud account; all AI processing happens on-device.
Pricing
Free.
Best for
People who want budgeting features and AI insights without sharing bank login details or account data with a third party.

Watched for 11 days · last checked 11d ago

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StatementSheet

Live

Converts PDF bank statements to Excel/CSV entirely in your browser without uploading them, and checks each one balances to the penny. $19 per batch, not a subscription.

Domain registered 18 days ago

No sign-upWorks offlineData stays with youOpen source
What to know▼
How it works
Converts PDF bank and card statements to Excel/CSV entirely in the browser, without uploading files to a server, and re-verifies each statement against its own running balance to the penny.
What's different
Files never leave the browser (works in airplane mode), and mismatched statements are flagged and made free.
Pricing
$19 per batch, no subscription, no account.
Best for
Anyone converting bank statements to spreadsheets who wants to keep the files off a server.

Watched for 13 days · last checked 11d ago

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TidyFlow

Live

A dispatch, payroll and job-tracking platform built specifically for cleaning companies, with an offline mobile app for field crews and two-way Google Sheets sync.

Works offline
What to know▼
How it works
An offline iOS and Android field app for cleaning companies covering GPS-verified jobs, two-way Google Sheets sync, AI dispatch, payroll, and client proof of work, in 11 languages.
What's different
Purpose-built for cleaning company operations rather than a general field-service tool.
Best for
Cleaning companies coordinating field crews across jobs and payroll.

Watched for 17 days · last checked 2d ago

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Bokkiman

Live

A private, offline men's health log for daily habits like sleep, mood and arousal-related metrics, with no account required and data kept on your device.

FreeNo sign-upWorks offlineNo ads
What to know▼
How it works
A one-tap daily log for morning EHS, ejaculation, sleep, alcohol and mood, turned into a calendar heatmap, trend charts and factor correlations.
What's different
No login or account, works fully offline as a PWA, and is framed explicitly as a serious health tool rather than adult content.
Pricing
Free and ad-free.
Best for
Men who want a private, on-device log of daily habits and how they relate to their body's rhythm.

Watched for 15 days · last checked 2d ago

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Zero: Budget with Zero

Local-first zero-based budgeting, no bank connection

FreeWorks offline
What to know▼
How it works
Bütçe ekranları cihaz üzerindeki veritabanından anında çalışır, onaylanan değişiklikler cihazlar arasında senkronlanır; YNAB/Actual Budget/CSV'den içe aktarım destekler.
Pricing
34 gün tüm özellikler ücretsiz, kart gerekmez.

First seen today

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Knöa

Live

A Spanish appointment-scheduling app for salons and clinics that reduces no-shows with WhatsApp reminders and a client reliability score.

Works offline
What to know▼
How it works
Sends automatic WhatsApp appointment reminders 24h and 2h before with confirm/cancel buttons, computes a client reliability score from history, and offers optional advance deposits via Stripe for new or unreliable clients; includes a 4-view drag-and-drop agenda and online booking link.
What's different
No commissions on bookings — the business keeps 100% of what it charges.
Watch out
Spanish-language product.

Watched for 3 days · last checked 3d ago

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Niti sheet

Live

An offline desktop spreadsheet app with nested child sheets, each with its own schema, formulas, and validation rules.

Works offlineCan export my data
What to know▼
How it works
An offline desktop spreadsheet where any cell can open its own nested child spreadsheet with its own schema, validation, formulas, and forms, plus offline charting, PDF output, and a built-in chatbot workspace.
Best for
People with complex, structured data who find flat spreadsheet grids limiting.
Watch out
Desktop application, works offline.

Watched for 8 days · last checked 6d ago

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Tabloy AI

Live

A local-first desktop analytics workspace with AI chat for exploring CSV, Excel, JSON, SQL, and KoboToolbox data.

Works offline
What to know▼
How it works
Local-first dashboards and an AI chat/agent for exploring CSV, Excel, JSON, SQL, and KoboToolbox data, keeping dataset processing local while AI works from schema context.
Pricing
Free to start.

Watched for 8 days · last checked 6d ago

Details →

CodePrettify

Live

Format, repair, query and compare JSON locally — no uploads.

FreeWorks offlineNo tracking

First seen today · last checked today

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Prabzo

Live

A client management app for solo freelancers, like yoga teachers, tutors and trainers, that replaces chasing payments on WhatsApp and midnight spreadsheet updates with one client history.

FreeWorks offlineCan export my data
What to know▼
How it works
Gives every client a full profile — contact info, notes, package purchases, session history and payments — so a solo practitioner can see everything in one place instead of switching between a contacts app, spreadsheet and notebook.
What's different
Works offline with no cloud dependency required, and includes birthday reminders and active/lead/inactive filtering.
Pricing
Free.
Best for
Solo freelancers like yoga teachers, tutors and personal trainers who currently chase payments over WhatsApp and update spreadsheets manually.

Watched for 17 days · last checked 11d ago

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Zakat Compass

Live

Private, offline zakat calculator covering wealth, Ushr and Fitr with sourced rulings, bilingual English/Urdu.

No sign-upWorks offlineCan export my data
What to know▼
How it works
Covers wealth zakat (2.5%), Ushr on harvests, and Zakat al-Fitr with separate calculators, showing the Qur'an, hadith, and fiqh sources behind each ruling and letting you pick a madhhab position; runs offline as a PWA with bilingual English/Urdu support and CSV/print/PDF export.
Best for
Muslims calculating zakat obligations with sourced rulings.
Watch out
Runs entirely in the browser with no account or server.

Watched for 3 days · last checked 2d ago

Details →

CSVTool.io

Live

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 installWorks offline
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.

Watched for 6 days · last checked 5d ago

Details →

CashLeakLogger

Live

An offline expense tracker with on-device receipt OCR and voice input, requiring no bank connection or account.

FreeNo sign-upWorks offlineCan export my data
What to know▼
How it works
Track expenses with manual entry, voice input, or on-device OCR receipt scanning, with budgets, insights, anomaly detection, optional Google Drive backup, and PDF/CSV export.
Pricing
Free; premium unlocks voice AI categorization, receipt scanning, PDF export, and advanced insights.
Watch out
No account or bank connection required; data stays on device.

Watched for 10 days · last checked 7d ago

Details →