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HappyCSV - Private CSV, Excel & Data Tools
View, edit, join, validate, clean, and convert CSV, Excel, JSON, Parquet, contact, calendar, and location data privately in your browser.
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88 % |
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TableMend — private tools for messy data
Private browser tools for cleaning, converting, checking, reshaping, and recovering tabular data.
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86 % |
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UsefulDock — safer tools for everyday data files
Private, safety-first CSV tools that run in your browser. Inspect, clean, compare, or merge files with risks explained before downloading.
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85 % |
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TaskThimble — Practical Browser Tools for Files, Data & Content
Fast browser tools for data, files, images, documents, text and lists, with local processing where practical. Use one tool directly, start from a task, or co...
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85 % |
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TaskThimble — Practical Browser Tools for Files, Data & Content
Fast browser tools for data, files, images, documents, text and lists, with local processing where practical. Use one tool directly, start from a task, or co...
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85 % |
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Merge Excel & CSV Files by Matching Columns | RowPair
Match and merge two Excel or CSV files without VLOOKUP. Review duplicates, missing rows, and ambiguous matches before downloading a clean spreadsheet.
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84 % |
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Tabular — Clean Up Messy Spreadsheets in Minutes
Upload CSV or Excel files, apply cleanup operations like removing duplicates and trimming whitespace, preview results, and download clean data instantly.
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83 % |
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DataForge — clean, merge, compare and convert CSV files
DataForge cleans messy CSV files, merges and joins tables on a key, diffs two versions and converts CSV to JSON — privately, in your browser.
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83 % |
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Ecomm Data Cleaner — Clean Your CSV & Excel Data in Minutes
Paste in your raw spreadsheet data and get a cleaner, standardized file with typos fixed, duplicates removed, and formatting cleaned up.
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83 % |
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Cleanroom — File tools that never upload your file.
Free CSV, Excel and PDF tools that run inside your browser tab. Your file stays on your computer — no upload, no account, no daily limits.
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83 % |
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Catalogue Ready — supplier CSV preparation for Shopify
Turn a supplier CSV into proposed Shopify draft data, with exceptions and a source record. Try the free early-access workbench with up to 10 simple products.
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83 % |
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AI Data Cleaning Software for CSV and Business Data
Clean, standardise, profile and deduplicate CSV business data in your browser. Preview every change, review likely matches and export a new file.
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83 % |
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Prepyr: Clean, Analyze, Chart and Report on CSV Data
Clean messy CSV files, ask data questions, create charts, and build evidence-based reports in one reviewable, versioned browser workspace.
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82 % |
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Kramata — Combine Multiple CSV & Excel Files Into One, Cleaned
Combine multiple CSV or Excel files into one clean file in one click. Build the cleanup once, re-run on every new batch. Free, 100% offline, Windows.
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82 % |
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CSV Normalizer for CRM Imports | Asphorem
Clean CSV files for HubSpot, Salesforce, and Pipedrive. Map columns, standardise picklist values, normalise dates, and reuse every workflow.
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82 % |
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flowingTable – Free Online Spreadsheet & CSV Toolkit | No Code Required
Clean, filter, merge, sort and transform any CSV or Excel file directly in your browser — no signup, no Excel, no Python. 15+ free data tools for analysts, r...
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82 % |
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Merge & Clean Excel Files Online — Private & Free | FoldSuite
Merge Excel and CSV files with different columns, clean values, remove duplicates, and export locally. Free, no sign-up, no file uploads.
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82 % |
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RowLoom — Clean and Reformat Messy CSV Files Online
Turn messy CSVs into the format you need — trim whitespace, fix number and date formats, and download a clean file. Free, no install required.
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82 % |
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FactsPrep CSV Cleaner – Clean & Prepare CSV and Excel Files
Clean, transform and prepare CSV and Excel files with FactsPrep. Remove duplicates, clean data, filter columns and export ready-to-use files.
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82 % |
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Columncraft — Your CSV workflow, made repeatable
Custom offline CSV conversion tools for $79. See a working demo, describe your workflow, and get a reusable tool built for your files.
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82 % |
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