The latest articles on DEV Community by kike-Pinto (@kike-dev). https://dev.to/kike-dev https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3883024%2F453b55c6-5f26-4345-8520-8de342c5e844.png https://dev.to/kike-dev en kike-Pinto Thu, 16 Apr 2026 18:53:54 +0000 https://dev.to/kike-dev/free-csv-tools-online-clean-convert-and-validate-csv-files-4ln1 https://dev.to/kike-dev/free-csv-tools-online-clean-convert-and-validate-csv-files-4ln1 <p>I built a collection of free CSV tools that help clean and convert data quickly.</p> <p>You can try them here:</p> <p><a href="https://data-tools-platform.vercel.app/" rel="noopener noreferrer">https://data-tools-platform.vercel.app/</a></p> <p>This website includes multiple tools designed to work directly in the browser, without installing anything.</p> <p>Some of the tools available:</p> <ul> <li>CSV Cleaner — remove extra spaces and fix messy CSV files</li> <li>CSV to JSON — convert CSV into structured JSON</li> <li>JSON to CSV — convert JSON into spreadsheet format</li> <li>CSV Validator — check CSV structure and detect errors</li> <li>Remove Duplicate Rows — remove repeated data rows</li> <li>CSV to Excel — convert CSV files into Excel format</li> <li>Excel to CSV — convert Excel files into CSV</li> <li>CSV Column Selector — keep only specific columns</li> <li>CSV Sorter — sort rows by column</li> <li>CSV Filter Rows — filter rows using column values</li> </ul> <p>These tools are useful for:</p> <ul> <li>developers working with APIs</li> <li>data cleaning tasks</li> <li>spreadsheet conversions</li> <li>automation workflows</li> <li>preparing structured data</li> </ul> <p>All tools run locally in the browser, so files are not uploaded to servers.</p> <p>You can explore all tools here:</p> <p><a href="https://data-tools-platform.vercel.app/tools" rel="noopener noreferrer">https://data-tools-platform.vercel.app/tools</a></p> <p>Feedback is welcome.</p> csv javascript webdev resources