nowfound

Dev tools · March 24, 2026

CellSentry

Local AI that audits your spreadsheets — data never leaves

What it does

CellSentry scans Excel files for formula errors, sesitive data, and structured information — running enirely on your machine. Drop a file, three engines rn at once: • Spreadsheet Audit: 23 rules + loca 1.5B AI model • PII Detection: find and redact SSN, credit cards, emails • Data Extraction: parse invoces into JSON/CSV No cloud. No account. No subscripion. Free and open source (MIT). Mac + Windows.

Does the same job

all alternatives →
  • Claude in ExcelFeb 2026 · ▲423

    Chat with your spreadsheet. Fix, build, test scenarios.

  • The Analysis tool in Claude.ai2025 · ▲260

    Analyzing and visualizing data from CSV files

  • Excel Dashboard Ai2024 · ▲158

    From Data to Report with Ai in seconds

  • CleanSheet AIJun 2026 · cleansheet.cloud · ▲4

    Clean messy spreadsheets with AI, no formulas needed

  • PF
    Privacy-first cross platform spreadsheet pipeline app2024 · tablesmith.io · ▲17

    In my previous role at a small startup, I frequently developed simple scripts to assist recruiters and marketing professionals in handling data processing tasks on Excel or CSV files. These tasks were typically straightforward and repetitive, stemming from the periodic export of data. This experience sparked the idea to create a straightforward tool dedicated to such functionalities(also mobile friendly, as they occasionally need to process data on their smartphones). There are powerful tools like Power Query and Tableau, but they often prove too complex for non-technical users to navigate…

  • LocalSheet AI5d ago · apps.microsoft.com · ▲2

    Deterministic Excel analysis. No AI guessing.

More dev tools this month

the category →
  • Dograh592

    The open source VAPI alternative

    Dev tools · 25d ago · dograh.com

  • Meridian530

    Don't let your work go unnoticed. Get promoted!

    Dev tools · 20d ago · meridiona.com

  • x1516

    Lovable for iPhone apps go from idea to App Store

    Dev tools · 11d ago · x1.new

  • The first open-source price index for GPU compute

    Dev tools · 10d ago · getcomputable.com

  • OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

    Dev tools · 2d ago · opentrailpaper.com

  • Open-source GTM skills for technical founders

    Dev tools · 29d ago · gtmcofounder.com

Launched alongside, March 2026

the whole month →
  • AI-native CRM that builds itself and does work for you

    AI · Mar 2026 · lightfield.app

  • Tobira.ai730

    A network where AI agents find deals for their humans

    AI · Mar 2026 · tobira.ai

  • Switch from ChatGPT to Claude with import memory feature

    AI · Mar 2026 · claude.com

  • The AI assistant that already knows your work

    AI · Mar 2026 · littlebird.ai

  • Your AI Coworker that proactively executes tasks

    AI · Mar 2026 · viktor.com

  • Jupid664

    File your taxes with Claude Code

    Commerce · Mar 2026 · jupid.com