The latest articles on DEV Community by kaylee8520 (@kaylee8520). https://dev.to/kaylee8520 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4044679%2Fcf3af33a-fd49-4823-8755-c1738dbe059d.png https://dev.to/kaylee8520 en kaylee8520 Fri, 24 Jul 2026 09:37:16 +0000 https://dev.to/kaylee8520/a-csv-viewer-that-never-uploads-your-data-bkf https://dev.to/kaylee8520/a-csv-viewer-that-never-uploads-your-data-bkf <p>I just wanted to open a CSV file quickly.</p> <p>Instead, I got:</p> <ul> <li>Slow spreadsheet apps</li> <li>Online tools that upload my data</li> <li>Way too much friction</li> </ul> <p>So I defined a simple goal:</p> <ul> <li>Fast and frictionless</li> <li>Fully local (no uploads)</li> <li>Spreadsheet-like experience</li> </ul> <p>That’s what I built.</p> <h2> What you can do with it </h2> <ul> <li>Open CSV files instantly (drag &amp; drop, no setup)</li> <li>Search and filter large datasets in seconds</li> <li>Edit data like a spreadsheet</li> <li>Export exactly what you see</li> </ul> <h2> Why this matters </h2> <p>Everything happens locally in your browser:</p> <ul> <li>Your data never leaves your device</li> <li>No account required</li> <li>No tracking, no storage</li> </ul> <p>Built with client-side JavaScript — no backend involved.</p> <p>Just open, edit, and export.</p> <h2> How it works </h2> <p>Built with client-side JavaScript — no backend involved.</p> <h2> Spreadsheet-Like Editing </h2> <p>Click a cell to select it, then press Enter or double-click to start editing.</p> <p>Press Enter again to save the value and move to the cell below. Use Option + Enter on macOS or Alt + Enter on Windows to insert a line break.</p> <p>You can also drag the small fill handle to copy a value across multiple cells.</p> <h2> Export the Current View </h2> <p>The exported CSV reflects the current table state, including:</p> <ul> <li>Search results</li> <li>Sorting order</li> <li>Visible columns</li> <li>Saved cell edits</li> </ul> <h2> Try it yourself </h2> <p>Open a CSV file, edit a few cells, and export it —<br><br> all without uploading anything.</p> <p>👉 <a href="https://csv-open.github.io/" rel="noopener noreferrer">https://csv-open.github.io/</a></p> <p>No signup. No upload. Just works.</p> <p>Handles CSV files up to 25MB<br><br> Supports multiple languages</p> webdev javascript csv vue