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Dev tools · March 7, 2026

FileValidator

Fix CSV import errors before uploading to HubSpot,Salesforce

What it does

File Validator scans CSV and Excel files to detect common data issues before importing them into CRMs, databases or analytics tools. It finds problems like invalid emails, mixed date formats, text in numeric columns and missing values. Some issues can be fixed automatically, allowing you to download a clean file ready for import. Everything runs directly in the browser and no data is stored.

Does the same job

all alternatives →
  • TableFlow2023 · ▲310

    Open-source CSV importer, alternative to Flatfile

  • Dropbase 2.02022 · ▲147

    Import messy CSV/Excel to databases with auto map & validate

  • csvbox2021 · ▲85

    Spreadsheet importer for your web app, SaaS or API

  • IB
    Impler – Build CSV/XlS import experience faster in your tech projects!2023 · impler.io · ▲10

    I'm pleased to introduce Impler to all, Add readymade CSV and Excel file import experience in products within minutes. Save months of work in developing data import experience from scratch. Impler allows you to embed data import widget into your app, with the facility to upload, map, and validate data using a hybrid validation engine. Impler is designed to import and validate thousands of records in seconds. Impler is open-source. Check it out at https://github.com/implerhq/impler.io Please try the product and offer your honest opinion if you have a moment. I really want…

  • FA
  • PureCSVApr 2026 · purecsv.com · ▲3

    CRM import safety for messy CSV files

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